abbreviationspowergrid
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Abbrevations in POWERGRID
1 AAACAll Aluminum Alloy Conductor
Type of Conductor
2 AACSRAluminum Alloy Conductor Steel Reinforced
Type of Conductor
3 ABCB
Air Blast Circuit BreakerA Circuit Breaker using compressed air foroperation and arc quenching
4 ABTAvailability Based Tariff
The revised tariff guidelines based on the actual
availability of unit/system
5 ACAlternating Current
Type of Current
6
ACDBAC Distribution Board
A control panel for auxiliary AC supply
7 ACSRAluminum Conductor Steel Reinforced
Type of Conductor
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Abbrevations in POWERGRID
8 ADBAsian Development Bank
ADB is a multilateral funding agency, primarily
engaged in development of Asian region.
9 ADJAdditional District Judge
Additional Judge in a District
10
AGAdvocate General
Law Officer of the Sate appointed by theGovernor to advise the State Govt. and toperform such other duties of legal character asmay be assigned.
11 AGIAttorney General of India
Law officer of the Country appointed by thePresident for advising the Govt of India and hasright of audience in all the courts in the territory ofIndia. He shall have the right to speak in bothhouses of the Parliament.
12
AGMAnnual General Meeting
13 AGSArmour Grip Suspension
Type of Conductor clamp
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Abbrevations in POWERGRID
14 AIRAll India Reporter
Name of Journal Reporting decided cases of
Supreme and High Courts in India.
15 AMSAsset Management System
A computerised database of Assets
16
APDRPAccelarated Power Development & Reformsprogramme
Scheme intiated by MoP/GoI to accelarate thepower reforms process in India
17 APED
Arunachal Pradesh Electricity DepartmentState Electricity Utility engaged in Generation,Transmission & Distribution of electricity in theState of Arunachal Pradesh.
18 APGENCOAndhra Pradesh Generation Corporation
A company engaged in generation of electricityin the State of Andhra Pradesh.
19 APTRANSCOAndhra Pradesh Transmission Corporation
A company engaged in tranmission & distributionof electricity in the State of Andhra Pradesh.
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Abbrevations in POWERGRID
20 ASEBAssam State Electricity Board
State Electricity Utility engaged in Generation,
Transmission & Distribution of electricity in theState of Assam.
21 ASGIAdditional Solicitor General of India
Law Officers associated with Solicitor General oIndia
22 ATTA type tower
Single circuit suspension tower
23 AWB
Airway BillDocuments issued by Airlines for transportationof goods
24 BBMBBhakra Beas Management Board
Harnessing the water impounded at Bhakra and
Pong and at Pandoh, delivering water and powerto the beneficiary states of Punjab, Haryana,Rajasthan & Himachal Pradesh .
25 BBSBulletin Board System
Text based message board service.
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Abbrevations in POWERGRID
26 BCCBlind Carbon Copy
To send a copy of an email to an invisible
recipient.
27 BCDBasic Customs Duty
Basic duty levied on imported goods asmentioned in customs tariff.
28 BDSBid Data Sheet
A section of the bidding document under WorldBank fuding which further gives specific details inrespect of certain clauses in "Instruction toBidders."
29 BDVBreak Down Voltage
The voltage at which dielectric strength vanishes.
30 BEBill of Entry
Document filed in the customs by importerregarding goods imported,duty to be paid etc
31 BEBody Extension
Type of Extension to Tower
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Abbrevations in POWERGRID
32 BEBudget Estimate
33 BGBank Guarantee
A Bank Guarantee obtained from the contractorfor faithful performance of contract
34
BHELBharat Heavy Electricals Ltd.
One of the leading international companies fromIndia in the field of power plant equipment, withan export presence in 60 countries & offersproducts, systems and services for core sectors:power, transmission, industry, transportation andrenewable energy.
35 BILBasic Insulation Level
36 BLBill of Lading
Document issued by Shipping lines on goodsbeing shipped
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Abbrevations in POWERGRID
37 BOCBid Opening Committee
Committee Constituted for opening of Bids
comprising members from Contract, Finance &Indenting deptt.
38 BODBid Opening Date
The date on which bid opens
39 BODBoard of Directors
Consists of functional as well as non-functionaldirectors of the company headed by CMD
40 BOM
Bill of Material
41 BOOTBuild, Own, Operate & Transfer
A BOOT funding model involves a singleorganisation, or consortium (BOOT provider)
designing, building, funding, owning andoperating the scheme for a defined period of timeand then transferring this ownership across to anagreed party.
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Abbrevations in POWERGRID
42 BOQBill of Quantities
Complete list of materials to be supplied as per
contract.
43 BPIBus Post Insulator
Insulators used for supporting Bus bars.
44
BPSBid Proposal Sheets
Post of bidding documents wherein the proposalalongwith prices & other schedule are to beobtained from bidders.
45 BPTA
Bulk Power Transmission AgreementThis agreement is signed between theContituents States & POWERGRID to ensuretimely payment of transmission tariff
46 BRMBi-Partite Review Meeting
Meeting taken by ADB twice in a year withBorrower to assess the loan utilisation,disburement, project progress etc.
47 BROBank Release Order
Request letter from the Banker for release ofgoods
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Abbrevations in POWERGRID
48 BSEBBihar State Electricity Board
State Electricity Utility engaged in Generation,
Transmission & Distribution of electricity in theState of Bihar
49 BSESBrihanmumbai Suburban Electric Supply
BSES supplies power to the Western suburbs ofMumbai and north of Bandra.
50 BTNBackbone Telecommunication Network
Telecom network being established byPOWERGRID to interconnect variouscapitals/cities/towns
51 BTTB type tower
Single circuit tension tower
52 C/DCustoms duty
Duty levied on imported goods
53 CACompany Appeal
Appeal filed under the Companies Act
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Abbrevations in POWERGRID
54 CAGRCompounded Annual Growth Rate
Percentage Growth rate divided by time duration
is called as CAGR
55 CBCircuit Breaker
A device used for making/ breaking ElectricalCircuit
56 CBICentral Bureau of Investigation
The Central Govt. investigation agency of India.
57 CCCarbon Copy
Sending a copy of an e-mail to additionalrecipients.
58 CCCorporate Centre
59 CCDConcessional Custom duty
Concessions in custom duty
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Abbrevations in POWERGRID
60 CCEACabinet Committee on Economic Affairs
Ultimate project approving authorithy comprising
Cabinet Ministers & headed by Hon'ble PrimeMinister
61 CDA RulesConduct, Discipline and Appeal Rules
The code of conduct for employees and theelaborate procedure for taking disciplinary action
against erring employees.
62 CEACentral Electricity Authority
A body established under Section-3 of ES Act,1948 for framing National Electricity Policy,formulate short-term and perspective plans fordevelopment of the electricity system and co-
ordinate the activities of the planning agencies fooptimal utilisation
63 CSEBChattisgarh State Electricity Board
State Electricity Utility engaged in Generation,Transmission & Distribution of electricity in the
State of Chattisgarh
64 CERCCentral Electricity Regulatory Commission
Established under Section-3 of ERC Act, 1998 fodischarging functions of a regulator at theNational level ( Section 76 of the Electricty Act,2003).
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Abbrevations in POWERGRID
65 CFCConverter Firing Control
An electronic device used for controlling firing of
Thyristor valves in HVDC
66 CGSCentral Generating Stations
Generating stations which are under CentralSector
67 CHACustom House Agent
Liecenced agents at custom houses
68 CHFSwiss franc
Currency of Switzerland
69 CIF PriceCost, Insurance & Freight Price
The price of materials/ equipment upto the postof disembarkation which includes FOB price andcharges towards ocean Freight & Insurance
70 CIOTLCentral Insulating Oil Testing Laboratory
POWERGRID oil testing laboratory at HyderabadSubstation premises
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Abbrevations in POWERGRID
71 CIPCustomer Inspection Point
72 CJHCChief Justice of High Court
Chief of the High Court of State
73 CJI
Chief Justice of IndiaChief of the Apex Court of the Country
74 CMPCivil Miscellaneous Petition
Misc. Petition filed in a pending proceeding.
75 COCharged Officer
An Employee who has been issued with aCharge Sheet.
76 COD on FRs/RC
Committee of Directors on Feasibility Reports/ Revised Cost Estimates
Committee Consists of functional Directorsheaded by Dir(Oprn.), which considersFRs/RCEs before investment approval by Boardof Directors of the company
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Abbrevations in POWERGRID
77 Consul. Comm.Consultative Committee on Energy
Committee of MPs to suggest measures for
improvement in Indian power sector
78 CoPUCommittee on Public Undertakings
Exercises the financial control on the publicsector undertakings and examines the reportsand accounts of public undertakings
79 CPCompany Petition
Any Petition filed under the Companies Act.
80 CPC
Civil Procedure CodeA Code for regulating procedures for Civil Cases
81 CPGContract Performance Guarantee
A bank guarantee obtained from the contractorfor a value of 10% of the contract for faithful
performance of contract
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Abbrevations in POWERGRID
82 CPIConsumer Price Index
The All India Consumer Price Index for Industrial
Workers published in the "Index Numbers ofwhole sale Prices and Consumer Prices"published monthly by the Centre for monitoring ofthe Indian Economy.
83 Cr.P.C.Criminal Procedure Code
A Code for regulating procedures for CriminalCases
84 CRGOCold Rolled Grain Oriented
Steel used for making transformer corelaminations
85 CRISILCredit Rating Information Services of IndiaLimited
Leading credit rating agency & leading provider ofinformation services & independent reasearch
86
CRMContact Resistance Meter
An instrument to measure contact resistance ofCircuit Breakers/Isolators
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Abbrevations in POWERGRID
87 CSEConditions for Supervision of Erection
A section of condition of contract for supply cum
supervision of erection contract (domestic)dealing with the supervision activities.
88 CSECharge Sheeted Employee
One who have ben Served a Charge Sheet.
89 CSRControlled Shunt Reactor
A shunt reactor where reactance is controllable
90 CSTCentral Sales Tax
Tax levied and collected at the point of sale ofgoods
91 CTCurrent Transformer
CT used for measurement of current & protectionpurposes
92 CTEChief Technical Examiner
Chief Technical Examiner heads the TechnicalWing of the Central Vigilance Commission.
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Abbrevations in POWERGRID
93 CTTC type tower
Single circuit tension tower
94 CTUCentral Transmission Utility
Any Government Company notified by Govt. ofIndia under Sub-section-38, Electricity Act 2003.POWERGRID has been notified as CTU in Dec,98
95 CVCCentral Vigilance Commission
The apex anti-corruption body of India.
96 CVD
Countervaling DutyDuty levied on imported goods in lieu of Exciseduty
97 CVOChief Vigilance Officer
CVO is the head of the Vigilance Department of a
Govt. Organization.
98 CVTCapacitor Voltage Transformer
CVT is used for measurement of voltage &protection purposes
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Abbrevations in POWERGRID
99 CWPCivil Writ Petition
Petition filed to enforce the rights guaranteed by
Constitution through Writ Jurisdiction
100 D/CDouble Circuit
101
DADefence Assistant
One who helps the Charged Officer in theDepartmental Inquiries.
102 DATTDA type tower
Double circuit suspension tower
103 DBDivision Bench
Bench of two Judges
104
DBTTDB type tower
Double circuit B-type tension tower
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Abbrevations in POWERGRID
105 DCBDomestic Competitive Bidding
Bidding process in which only domestic Bidders
can apply
106 DCCTDirect Current Current Transformer
A device used for measurement of Direct Current
107
DCDBDirect Current Distribution Board
A control panel for auxiliary Direct Current supply
108 DCEData Circuit Terminating Equipment
An interface standard for the equipment which
provides the functions of interfacing data terminalequipment and a communication channel
109 DCODirect Capital Outlay
110 DCRMDynamic Contact Resistance Measurement
Condition monitoring test on Circuit Breaker tomonitor health of breaker contacts
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Abbrevations in POWERGRID
111 DCTTDC type tower
Double circuit C-type tension tower
112 DDDefence Documents
The document produced by the Charged Officerin his defence during Department Inquiry.
113
DDTTDD type tower
Double circuit D-type tension tower
114 DEDead end tower
115 DEMGerman mark
Currency of Germany
116 DETT
DE type towerDouble circuit E-type tension tower
117 DFRDigital Fault Recorder
Records analog and digital details during any linetripping/ disturbance
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Abbrevations in POWERGRID
118 DFRDry Fissured Rock
Type of Foundation
119 DGADissolved Gas Analysis
Extracted dissolved gas from Transformer oil areanalysed using gas chromatograph for findinginternal health of Transformers/ Reactors
120 DGFTDirectorate General of Foreign Trade
Under Ministry of commerce dealing with export-import policies and procedures
121 DO
Delivery OrderRequest letter from the importer for release ofgoods
122 DOPDelegation of Powers
Document stating distribution & delegation of
power at various levels
123 DOP, NagalandDepartment of Power, Nagaland
State Electricity Utility engaged in Generation,Transmission & Distribution of electricity in theState of Nagaland.
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Abbrevations in POWERGRID
124 DoTDepartment of Telecommunication
Govt. department responsible for policy
formulation, licensing, wireless spectrummanagement, administrative monitoring of PSUs,research and development andstandardization/validation of equipment etc. inTelecom sector
125 DPDisciplinary Proceedings
A Procedure laid down in CDA Rules to passpenalty orders etc. against a person who hasindulged in a misconduct.
126 DP CellDisciplinary Proceeding Cell
The Cell in the Corporate Vigilance Department
which deals with the disciplinary cases.
127 DPEDepartment of Public Enterprises
The Department of Public Enterprises acts as anodal agency for all PSEs and assists in policyformulation pertaining to the role of PSEs in the
economy as also in laying down policy guidelineson performance improvement and evaluation,financial accounting, personnel management andin related areas.
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Abbrevations in POWERGRID
128 DRDisturbance Recorder
Records analog and digital details during any line
tripping/ disturbance installed at Substation
129 DRSData Requirement Sheets
Section of bidding document through whichtechnical details of the equipment/ materials areobtained.
130 DTDouble Tension
Configuration of Insulator String
131 DTE
Data Terminal EquipmentA hardware specification for the equipment whichprovides the function of interfacing between dataterminal equipment and a communicationschannel. DTE are normally terminals or intelligentprocessors
132 DTTD type tower
Single circuit tension tower
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Abbrevations in POWERGRID
133 DVBDelhi Vidyut Board
State Electricity Utility engaged in Generation,
Transmission & Distribution of electricity in theNational Capital Terriotory of Delhi.
134 DVCDamodar Valley Corporation(DVC)
DVC operates mainly in the Valley area ofDamodar River with the objective of promotion
and operation of schemes of the generation,transmission and distribution of energy, bothhydro-electric and thermal.
135 DWDefence Witness
A person who is cited by the Charged Officer toadduce evidence on his behalf.
136 DWDMDense Wavelength Division Multiplexing
A method of communication wherein variouscolour signals are multiplexed such that they cantravel on single pair of fiber carrying multiplechannels.
137 E&MElectro Mechanical
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Abbrevations in POWERGRID
138 EA, 2003The Electricity Act, 2003
Contains laws relating to the generation,
transmission, distribution, trading and use ofelectricity
139 ECCErection Conditions of Contract
A section of condition of contract for supply cumerection contract (Domestic) dealing with erection
activities.
140 ECMExecutive Committee Meeting
Meeting comprising Executive Director & abovelevel to deliberate the policy issues inPOWERGRID
141 EDExcise Duty
leviable on wide range of commodities classifiedunder the schedule to the central excise tariff act,1985. The basis of levy of such duties can bespecific, advalorem or fixed tariff value.
142 EFElectric Field
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Abbrevations in POWERGRID
143 EFCExpenditure Finance Committee
Forum which considers the project when its cost
is more than Rs. 25 Cr. & less than Rs. 200 Cr.&it is funded by multilateral agencies and furtherrecommends it to CCEA
144 EIBEuropean Investment Bank
The European Union's long term financing
institution
145 EIRREconomic Internal rate of Return
The EIRR is an indicator to measure theeconomic development/return on investment ofan income generation project
146 ELEvent Logger
Device for recording sequence of events duringtripping/ disturbance, installed at Substation
147 E-MailElectronic Mail
The internet equivalent of a letter postal service.
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Abbrevations in POWERGRID
148 EMCElectromagnetic Compatibility
Electromagnetic compatibility indicates that the
device is compatible with electromagneticenvironment
149 EMDEarnest Money Deposit
A form of bid security submitted along with thebid to protect the owner against the risk of
bidders conduct which would warrant theguarantee forfeiture
150 EMIElectromagnetic Interference
Phenomenon which cause electromagneticinterference in other devices in the vicinity
151 EoIExprerssion of Interest
Process of shortlisting of serious bidders forissuance of selection documents for appointmentof consultants
152
EPABXElectronic Private Automatic BranchExchange
A private exchange used for internalcommunications
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Abbrevations in POWERGRID
153 EPC ContractorErection, Procurement and ConstructionContractor
The entity appointed by the IPTC for erection,procurement/supply and construction of theProject.
154 EPMEngineering Project Management
Application software related to project
management
155 ESDDEquivalent Salt Deposit Density
A chemical method to determine amount ofpollution in insulator discs/ strings
156 ESPPEnvironment And Social Policy & Procedure
Policy/Procedure & guidelines formulated byPOWERGRID for management of Env. & Socialissues of POWERGRID projects activities
157 ETTE type tower
Single circuit tension tower
158 EWEarthwire
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Abbrevations in POWERGRID
159 EXIM PolicyExport-Import Policy
Policies framed by Dgovt. Of India regarding
export-import
160 EXW PriceEx-works, Ex-factory or Ex-warehouse Price
Price of an item at the time of dispatch fromfactory, warehouse or works.
161 FACTS DeviceFlexible AC Transmission System Device
Controllability, stability and power flow capability
162 FCFinancial Closure
Achieved when all the activitities related toproject implementation like funding tie-up,contract award etc. have been accomplished
163 FCForest Clearance
An approval accorded by Ministry of Environment
and Forest, GoI for diversion of forest areas fornon-forest purpose under the Forest (Conservation) Act, 1980.
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Abbrevations in POWERGRID
164 FDFinancing Document
The agreement signed between IPTC & Lenders,
pursuant to which the IPTC is to finance theproject, including without limiitation the Securitydocuments, Inter-Creditor Agreements, Co-ordinaton Agreements and any other AncillaryAgreements
165 FEARFinal Environment Assessment Report
166 FERVForeign Exchange Rate Variation
167 FFFrench Franks
Currency of France
168 FIRRFinancial Internal rate of Return
The FIRR is an indicator to measure the finalciafinancial return on investment of an incomegeneration project
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Abbrevations in POWERGRID
169 FLFault Locator
An electronic device which provide information on
location of fault in transmission line, installed atSubstation
170 FOFibre Optic
Fibres of glass, usually about 120 micrometres indiameter, which are used to carry signals in the
form of pulses of light over distances up to 50 kmwithout the need for repeaters
171 FOB PriceFree On Board Price
Price of item at the time when it is Boarded on aship.
172 FOREXForeign Exchange
173 FOR PriceFree on Rail Price
Price of item at the time when it is Boarded onRail.
174 FQPField Quality Plan
Quality Plan for field activities.
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Abbrevations in POWERGRID
175 FR-cum-DPRFeasibility Report -cum-Detailed ProjectReport
Report containing details like justification, scope,cost, schedule etc. of the transmission project.
176 FSFully Submerged
Type of Foundation
177 FSCFixed Series Compensation.
Reactive Power Compensation Device
178 FTPFile Transfer Protocol
Method for transferring files through internet.
179 FVIFrequency Variation Index
A performance index representing the degree offrequency variation
180 GBCCPPGas Based Combined Cycle Power Plant
A plant which can operate on Gas as well as onSteam
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Abbrevations in POWERGRID
181 GBSGross Budgtary Support
Cosists of Loans routed through GoI and
budgetary support.
182 GCGovernment Company
Shall have the meaning assigned to it in Section617 of the Companies Act, 1956.
183 GCBGlobal Competitive Biding
Bidding process in which domestic as well asforeign Bidders can bid for a project fundedunder domestic funding.
184 GCCGeneral Terms & Conditions of Contract
It specifies all the general terms & conditions fora said contract
185 GEBGujarat Electricity Board
State Electricity Utility engaged in Generation,Transmission & Distribution of electricity in theState of Gujarat
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186 GEDGoa Electricity Department
State Electricity Utility engaged in Generation,
Transmission & Distribution of electricity in theState of Goa.
187 GGDCGrid-Grid Disturbance Constraints(attributable to system)
Power swings/ tripping due to Grid Disturbances/
Under frequency is landing tripping/ reversepower flow blocking related tripping/ Handtripping due to loss of voltage
188 GIFBGlobal Invitation for Bids
Global invitation for bids under domestic dunding.
189 GISGas Insulated Substation
A Substation where all equipments areencapsulated in SF6 gas enclosures
190 GLGround Level
191 GOFCGrid (ICT) Over Fluxing Constraint(attributable to system)
ICT tripping on over fluxing
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192 GoIGovernment of India
Indian Government
193 GOLCGrid (ICT) Over Loading Constraint(attributable to system)
ICT tripping on overloading/ over-current
194
GOMDGrid Outage Miscellaneous Deemed available
Unable to restore after outage (other than griddisturbance) , due to system constraints
195 GOVCGrid Over Voltage Constrain (attributable to
system)Feeder tripped on over voltage protection
196 GR waiverGuaranteed Receipts waiver
Letter issued by Bank for exporting withoutrealization of payments
197 GridGrid
The high voltage system of interconnectedtransmission lines, substations and generatingplants.
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Abbrevations in POWERGRID
198 GSGrid Standard
Grid Standards for operation and maintenace of
Transmission lines, specified by CEA.
199 GSGalvanised Steel
Steel covered with metal by the use of a galvaniccurrent or coating of iron with zinc to protect itfrom rusting.
200 HBAHouse Building Advance
House Building Advance
201 HC
High CourtHighest Court in a State
202 HFLHighest Flood Level
Highest flood level.
203 HPSEBHimachal Pradesh State Electricity Board
State Electricity Utility engaged in Generation,Transmission & Distribution of electricity in theState of Himachal Pradesh.
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204 HRHard Rock
Type of Foundation
205 HTHigh Tensile Steel
High tensile steel have tensile strength of morethan twice that of mild steel.
206
HTMLHyper-Text Markup Language
The programming language used for web pages,in the internet.
207 HTTPHyper-Text Transfer Protocol
The way web pages are transferred over theinternet.
208 HTTPSHyper-Text Transfer Protocol Secure
The protocol through which way secure webpages are transferred.
209 HVDCHigh Voltage Direct Curent
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Abbrevations in POWERGRID
210 HVPNLHaryana Vidyut Prasaran Nigam Limited
A company engaged in transmission &
distribution of electricity in the State of Haryana.
211 IAInter Locutory Application
Interim Application filed for any relief in a pendingproceeding.
212 IAImplementation Agreement
An agreement entered between POWERGRIDand IPTC/JV Company for the constructionphases of the project.
213 IAInquiry Authority
One who is formally eppointed by the DisciplinaryAuthority for conducting an oral inquiries againstthe employee who has been issued MajorPenalty Charges Sheet.
214 IACInternational Aided Component Foreign
Funding Component provided ny multilateralfunding Agency.
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Abbrevations in POWERGRID
215 IBRDInternational Bank for Reconstruction andDevelopment
This organisation of The World Bank provide low-interest loans, interest-free credit, and grants todeveloping countries.
216 IBWLIndian Board of Wild Life
A high power committee under the chairmanship
of Hon’ble Prime Minister and comprising ofHon’ble Minister of Env. & Forest NGO wild lifeexperts which look after conservation of wild lifein INDIA as well as consider developmentalactivities in sanctuary/national park.
217 ICBInternational Competitive Bidding
Bidding process in which domestic as well asforeign Bidders can bid for a project funded bymultilaterial funding agencies.
218 ICDInland Container Depot
Dry ports such as Inland Container Depot
Tuglakabad which acts as custom house
219 ICRAInvestment information & credit RatingAgency
An independent & professional companyproviding investment information and credit ratingservices.
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Abbrevations in POWERGRID
220 ICSInventory Control System
System for effective Inventory control
221 ICTInter Connecting Transformer
Auto transformers used in grid stations for interconnecting different voltages
222
IDAIndustrial Dispute Act
Industrial Dispute Act
223 IDAInternational Development Association
IDA helps the world's poorest countries reduce
poverty by providing "credits," which are loans atzero interest with a 10-year grace period andmaturities of 35 to 40 years.
224 IDCInterest During Construction
225 IEIntensive Examination
To inspect the construction Project in detail.
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Abbrevations in POWERGRID
226 IEARInitial Environment Assessment Report
227 IE RulesIndian Electricity Rules
228 IEBR
Internal & External Budgetary ResourcesIt comprise Internal Resources, Foreign loan &Domestic loans, which are directly given totheorganization.
229 IEEInstitution of Electrical Engineers
IEE is an innovative International Organisation foElectronics, Electrical, Manufacturing and ITprofessionals, with specifically tailored products,services and qualifications to meet the needs oftoday's technology industry.
230 IEEEInstitute of Electrical and Electronics
Engineers
Technical objectives center on advancing thetheory and practice of Electrical, Electronics &Computer Engineering and Science.
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231 IEEMAIndian Electrical and ElectronicsManufacturers’ Association
Promotes and protects interests of the Indiancompanies active in the area of electricalbusiness and is recognized as theirrepresentative organization.
232 IEGCIndian Electricity Grid Code
The Grid Code specified by CERC under clause(h) of sub-section (1) of Section 79, Electricty Act2003.
233 IFBInvitation for Bids
Notice published in the News papers, tradejournals and in web sites inviting bids (Multilateral
Funding).
234 IFCInternational Finance Crporation
Estabished in 1956, IFC is the largest multilateralsource of loan & equity financing for privatesector projects in the developing world.
235 IFTInter Facial Tension
Interfacial tension between the water and oilinterface is the way to measure molecularattractive force between the molecules of waterand oil. It is expressed in Dynes/cm or milliNewton/m. A measure of transformer oil quality.
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236 ILDSInternational long distance services
Telecom Services provided for International calls
237 ILLInter Library loan
Interlibrary loan is a mechanism for differentlibraries to share materials.
238
ILMOCIndexed Local Operation and MaintenanceCharge
One of the component of the transmissionservice charge quoted in Local currency eligiblefor indexaion to cover expenditure incurred inIndian Rupees during "Operation & Maintenace"phase of the transmission project.
239 IMAPInternet Message Account Protocol
A protocol facilitating viewing e-mail on the server
240 IMSInspection Management System
System for effective Inspection
241 INBInstructions to Bidders
Section of bidding documents whereininstructions on how to bid is indicated (Domesticfunding).
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Abbrevations in POWERGRID
242 ITBInstructions to Bidders
Section of bidding documents wherein
instructions on how to bid is indicated(Multilateral funding).
243 INRIndian Rupees
Currency of India
244 INVInvitation to Bid
Notice published in the News papers, tradejournals and in web site inviting tenders.
245 INVAR
Invariable to temperatureType of Conductor for high temp. operation
246 IOInvestigation Officer
An Officer who investigates the case
247 IOTLInsulating Oil Testing Laboratory
POWERGRID oil testing laboratory at Durgapur,Ballabhgarh & Hyderabad
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Abbrevations in POWERGRID
248 IP-IIInfrastructure Provider-II
A license issued by Govt. of India to operators
who want to become NLD operators
249 IPTCIndependent Private Transmission Company
A 100% owned Private Entity to infuse privatefunds in transmission projects and a successorentity of the Shell Company created by
POWERGRID that will execute the projectagreements with POWERGRID forimplementation of the project.
250 IRIndustrial Relation
251 IRInternal Resouces
Money generated through transmission tariff afterdeducting expenses
252 IRInsulation Resistance
Direct Current resistance of insulation measuredby application of Direct current Voltage usingInsulation testers (Megger)
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253 ISInternet / Intranet Server
Internet / Intranet Server
254 ISBNInternational Standard Book Number
A unique 10 digit code assigned to a specificedition of a book before it is published
255
ISGSInter State Generating Station
A central/Mega Power Proect/other generatiangstation in which two or more than two states havea share and whose scheduling is to becoordinated by the RLDC
256 ISPInternet Service Provider
A company who provide a communication link tothe internet.
257 ISTSInter state transmission system
Any system for the conveyance of energy bymeans of a main transmission line from theterritory of one state to another state
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Abbrevations in POWERGRID
258 JBICJapan Bank for International Cooperation
International Financial Operations contribute to
the promotion of Japanese exports and imports,as well as Japanese economic activitiesoverseas.
259 JSEBJharkhand State Electricity Board
State Electricity Utility engaged in Generation,
Transmission & Distribution of electricity in theState of Jharkhand
260 JPYJapanese yen
Currency of Japan
261 JVJoint Venture
It is the agreement between two or morecompanies for a specific purpose
262 JVCJoint Venture Company
It is the company formed as a Joint Venture forany specific purpose
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263 JVVNLJaipur Vidyut Vitaran Nigam Ltd.
A Distribution Company created with the principal
objective of distribution and supply of electricity inRajasthan
264 kNKilo Newton
Metric Unit for Force.
265 KPTCLKarnataka Power Transmission CorporationLtd.
A company engaged in tranmission of electricityin the State of Karnataka
266
KSEB Kerala State Electricity Board
State Electricity Utility engaged in Generation,Transmission & Distribution of electricity in theState of Kerala
267 LALightning Arrestor
Also called Surge Arresters, provided tosafeguard switchyard equipment from lightningover voltages
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268 LAR-TLine Auto Re-closure-POWERGRID
Line Auto Re-closure due to earth faults,
attributable to POWERGRID
269 LBBLocal Breaker Backup
Protection relays provided to isolate fault bytripping fault feeding sources in case of failure ofcircuit breaker
270 LCLetter of Credit
A document issued by a bank which guaranteesthe payment of a customer's drafts for a specifiedperiod and up to a specified amount
271 LCSDLine Construction of new System Deemedavailable
Line shutdown taken to facilitate constructionactivities of new system being executed byPOWERGRID
272
LDLiquidated Damages
An amount to be paid by the contractor if fails tosuccessfully complete the work within the timefixed under the contract (indicated as apercentage of contract price for each work’sdelay).
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273 LDAPLightweight Directory Access Protocol
Way to access online services.
274 LDCALong Distance Charging Area
275 LE
Leg ExtensionType of Extension to Tower
276 LEF-TLine Earth Fault POWERGRID
Line Earth Fault attributable to POWERGRID
277 LHW-TLine Hard Ware fault POWERGRID
Faults due to snapping of conductors, earth wire,jumper, insulator failure, failure of tower due todesign & material deficiency etc. attributable toPOWERGRID
278 LILightning Impulse
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Abbrevations in POWERGRID
279 LIBORLondon Inter-Bank Offer Rate
The interest rate that the largest international
banks charge each other for loans (usually inEurodollars).
280 LLLeased Line
Dedicated link availed for transfer of datas etc.
281 LLJLabour Law Journal
Name of Journal reporting cases pertaining toLabour and Industrial Disputes
282 LMAC
Line Miscreants Activity ConstraintsLine breakdown caused by miscreants / militantactivities
283 LME IndicesLondon Metal Exchange Indices
Indices for metals used for the purpose of price
variations.
284 LMULine Matching Unit
To match the impedance of the line with thecarrier terminal equipment
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285 LNCCLine Natural Calamity Constraints
Line outage due to natural calamities
286 LOALetter of Award
Contract award letter issued to successful bidderfor executing specified works as per the terms &conditions mentioned therein
287 LPALetter Patent Appeal
Appeal against Single Bench Order of HighCourt to other Judge
288 LPP-T
Line Phase to Phase fault POWERGRIDPhase to phase faults, double line to earth faults,3-ph and 3-ph earth faults, but not due to powerswings attributable to POWERGRID
289 LPRDLine Power Regulation Deemed available
Line hand tripped for power regulation on RLDCinstruction
290 LTELimited Tender Enquiry
A mode of tendering under which bids are invitedfrom a selected number of bidders who arequalified.
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Abbrevations in POWERGRID
291 LVRDLine Voltage Regulation Deemed available
Line hand tripped for voltage regulation on
Regional Load Despatch Centre instruction
292 MAWB/HAWBMaster/House Airway Bill
Documents issued by Airlines for transportationof goods
293 MBDMachinery Break-down Policy
Insurance policy for equipments failure
294 MCMManagement Committee Meeting
Meeting comprising Group heads/Departmentheads & above level
295 MESEBMeghalaya State Electricity Board
State Electricity Utility engaged in Generation,Transmission & Distribution of electricity in the
State of Meghalaya
296 MIMEMulti-Purpose Internet Mail Extentions
Standard for transferring different file types.
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297 MNWMaster Net Work
Plan of activities for project implementation
298 MODEMModulation-Demodulation
Device to convert signals for transfer over phonelines.
299
MOMMotor Operated Mechanism
Electrical operating mechanism provided inswitchyard especially for Isolators operations
300 MoPMinistry of Power
Administrative/Line Ministry for POWERGRID
301 MoUMemorandum of Understanding
It is the agreement signed between two agencies
302
MPSEBMadhya Pradesh State Electricity Board
State Electricity Utility engaged in Generation,Transmission & Distribution of electricity in theState of Madhya Pradesh
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303 MPPMega Power Project
A generating station with an installed acpacity of
1000 MW (for Thermal) & 500 MW (for Hydro)and having two or more states as beneficiary.
304 MREMarket Rate of Exchange
Currency exchange rate
305 MRNMaterial Return Note
Document by which mateial is returned to store
306 MRTBMetallic Return Transfer Breaker
A Circuit Breaker provided to transfer groundreturn to metallic return when one pole is undershut down in bi-pole HVDC stations
307 MSMail Server
Server exclusivelly used for mails in a local area
network
308 MSMild Steel
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309 MSEBManipur State Electricity Board
State Electricity Utility engaged in Generation,
Transmission & Distribution of electricity in theState of Manipur.
310 MSEBMaharashtra State Electricity Board
State Electricity Utility engaged in Generation,Transmission & Distribution of electricity in the
State of Maharashtra.
311 MTBFMean Time Between Failure
Average time for which a component workswithout a failure.
312 MTNMaterial Transfer Note
Note vide which transfer of material takes placefrom one region to other
313 MTRMid Term Review
Done by the World Bank to review the progressof projects covered under its loan in the middle ofongoing loan
314 MVAMega Volt Ampere
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315 MVARMega Volt Ampere Reactive
316 NBSNet Budgtary Support
Net Budegtary Support provided by GoI.
317 NCC
Network Control CentreA centralised network diagnostic andmanagement station or site.
318 NDOPNagaland Department of Power
State Electricity Utility engaged in Generation,
Transmission & Distribution of electricity in theState of Nagaland
319 NEEPCONorth Eastern Electric PowerCorporation(NEEPCO)
A wholly owned Government of India Enterprise
to exploit, utilize and develop the inherent powergeneration capability of the North East for thebenefit of the Region and the country at large.
320 NEPNational Electricity Plan
As provided in Electricity Act, 2003.
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321 NFCRCNon-Indexed Foreign Capital Recovery Charg
One of the component ofteh "Transmission
Service Charge" quoted in Foreign Currency forrecovery of the Capital expenditure incurred up tocommissioning for construction phase of thetransmission project with no indexation.
322 NFOMCNon-Indexed Foreign Opeartion &Maintenance Charge
One of the component of the TransmissionService Charge quoted in Foreign Currency (FC)with no indexation to cover expenditure incurredin FC during "Operation & Maintenance" phase ofthe transmission project.
323 NHPC
National Hydroelectric Power Corporation Ltd.A Central Government Enterprise for HydroPower Development in Central Sector. It is thelargest organization for Hydropower Developmentin India.
324 NITNotice Inviting Tenders
Notice published in the News papers, tradejournals and in web site inviting tenders
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325 NJPCLNathpa Jhakri Power Corporation Ltd.
Formed to plan, investigate, organize execute,
operate and maintain hydro electric power projectin the Satluj river basin in the State of HimachalPradesh.
326 NLCNeyveli Lignite Corporation Limited
A wholly-owned Central Government Company
primarily engaged in the exploitation of lignitedeposits and generation of Lignite-based powerin Tamil Nadu.
327 NLDCNational Load Despatch Centre
Being created to have overall supervision &control over RLDCs
328 NLDONational Long Distance Operations
Telecom company providing services for longdistances.
329
NMSNetwork Management System
A comprehensive system of equipment used tomonitor, control, and manage a communicationnetwork.
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330 NNTPNetwork News Transfer Protocol
The way news messages are sent over the
internet.
331 NOANotification of Award
Letter issued containing main features of thecontract (especially in case of foreigin funding)
332 NOCNo Objection Certificate
document indicating nothing is outstandingagainst an employee
333 NPC
Nuclear Power Corporation of IndiaA wholly owned Enterprise of the Govt of Indiaunder the administrative control of theDepartment of Atomic Energy (DAE), Govt ofIndia for operation and maintenance of theAtomic Power Stations for Generation ofElectricity
334
NRTPNorthern Region Transmission Project
Loan given by WB to POWERGRID, which hasbeen closed in Sept., 2000 (Loan no. 3237-IN)
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335 NRVNon-Return Valve
A valve designed to allow the flow only on one
direction
336 NSNetwork Management Server
Server for Network Management
337
NTNormal Tower
338 NTPCNational Thermal Power Corporation Limited
A public sector company primarily owned by GoI.
Primarily engaed in thermal power generation inIndia.
339 NYTNot Yet Published
Pre-publication bibilographic information aboutbooks/journals through brochures and e-media.
340 OBDOpening of Bid Documents
The date on which bids are publicly opened for apackage.
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341 OCCOperation co-ordination committee
A committee of REB with members from all the
constituents which decides the operation aspectsof the regional grid.
342 ODCOver Dimensional Cargo
343 OHPCOrissa Hydro Power Corporation
A company engaged in Generation of electricityin the State of Orissa.
344 OIP
Oil Impregnated PaperUsed as insulator inside OIP transformerbushings
345 OLTCOn Load Tap Changer
Provided in Transformers to regulate voltage
when transformer is in service
346 OMPOriginal Miscellaneous Petition
Petition filed for challenging an Order in originaljurisdiction.
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347 OMS-TOutage Miscellaneous Shutdown -POWERGRID
Miscellaneous outages attributable toPOWERGRID
348 OMS-UOutage Miscellaneous Shutdown- Utilities
Miscellaneous attributable to other agency orforce majeure condition
349 OPACOnline Public Access Catalogue
An electronic catalog containing records for eachitem in the library: books, magazines, journals,standard, etc. The Catalog canbe searched byfields such as author, title, subject, standard no.etc.
350 OPGWOptical Ground Wire
Type of cable in which optical fribers areembedded inside the earth wire. These cableperform the dual function of signal earth path forPOWER SYSTEM and communication signal
carrying media through fiber.
351 OSFDOutage Shutdown Forced Deemed available(attributable to other Utilities)
Forced shutdown availed by other agency / agencies causing outage of POWERGRIDelement
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352 OSF-TOutage Shutdown Forced (attributable toPOWERGRID)
Forced shutdown (e.g. Earthwire snapping / hotspot) attributable to POWERGRID
353 OSPDOutage Shutdown Planned Deemed available
Planned shutdown availed by other agency / agencies for maintenance or construction of their
transmission system causing outage ofPOWERGRID element
354 OSP-TOutage Shutdown Planned POWERGRID
Planned shutdown for maintenance work ofPOWERGRID elements attributable toPOWERGRID
355 OSROil Surge Relay
Protection relay used in On Load Tap Changer oftransformer
356
OTIOil Temperature Indicator
Measures transformer/ reactor oil temperature forindication and to give alarm/ trip at preset values
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357 PADProject Appraisal Document
Document prepared by the multilateral funding
agency for appraisal of the projects coveredunder the loan.
358 PAMDProject Appraisal Management Division
A division of Planning Commission associatedwith Project Appaisal.
359 PAPs/PAFsProject affected persons/Project affectedfamilies
Affected persons/affected families due toacquisition of land for sub station
360 PC ActPrevention of Corruption Act. 1998
An Act passed by the Parliament to deal withcrimes related to corruption.
361 PCRProject Completion Report
Prepared after the loan closing date giving statusof all the projects covered under the loan
362 PDPartial Discharge
Electrical discharge due to poor insulation
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363 PDD, JKPower Development Department, Jammu &Kashmir.
State Electricity Utility engaged in Generation,Transmission & Distribution of electricity in theState of Jammu & Kashmir.
364 PEPreliminary Enquiry
Preliminary verification conducted by Control
Bureau of Investigation before Registration ofFirst Information Report.
365 PEDPondicherry Electricity Department
State Electricity Utility engaged in Generation,Transmission & Distribution of electricity in theState of Pondicherry
366 PFAProvident Fund Act
367 PFCPower Finance Corporation
Established in July 1986 as a DevelopmentFinancial Institution (FI) dedicated to the PowerSector wholly owned by Government of India.
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368 PIBPublic Investment Board
Forum which considers the project when for
Investment Approval its cost is more than Rs.200 Cr. Involving funding.
369 PICCPaper Insulated Copper Conductor
Paper insulated conductor coils used inmanufacturing of transformers
370 PIPProject Implementation Plan
A formal document required for appraisal for theproject by multilateral funding agencies.
371 PIRPre Insertion Resistor
Used in Circuit Breaker and comes into operationat the time of charging the line/ transformer toreduce switching Over voltage
372 PLCCPower Line Carrier Communication
High frequency communication signals sentalong the power line used for protection andcommunication
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373 PLRPrime Lending Rate
The lowest rate which a bank is willing to lend to
its best customers
374 PMRProject Management Report
Quarterly Report sent to World Bank
375
POPurchase Order
Order placed on supplier for procurement ofmaterials
376 POPresenting Officer
One who present the case on behalf of theDisciplinary Authority before the Enquiry Authority
377 PODPower Oscillation Damping
An electronic devise used in Static VoltageAmpere Reative Compennsator (SVC) High
Voltage Direct Current to control SVC to reduceoscillation during power swing
378 PoPPoint of Presence
A bank of modems allowing connection to anInternet Service Provider.
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379 POPPost Office Protocol
Standard client/server protocol for receiving e-
mails
380 PORPermissive Over Reach
A type of inter-tripping scheme used in distanceprotection of Transmission line
381 POWERGRIDPower Grid Corporation of India Limited
Official abbrviation of Power Grid Corporation ofIndia Limited
382 POWERMAIL
POWERGRID EmailE-mail service provided in POWERGRID
383 PPPPoint to Point Protocol
The way computers can connect using modemsand phone lines.
384 PRDPressure Relief Device
Used in transformers/ reactors to vent outinternal pressure in case of internal fault
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385 Pre-PIBPre-Public Investment Board
Forum which considers the project when its cost
is more than Rs. 500 Cr. & further recommends itto PIB
386 PRMProject Review Meeting
Periodic meeting in which progress of variousprojects are discussed
387 PROMISEPOWERGRID Ranked and OptimisedManagement Information System
POWERGRID's Enterprise Resource Planningsystem
388 PRVPressure Relief Valve
Used in transformers/ reactors to vent outinternal pressure in case of internal fault
389 PSPartially Submerged
Type of Foundation
390 PSBPower Swing Blocking
Provided in line protections to block tripping oflines upto a pre set time when power swing in thesystem is detected
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391 PSDP-IPOWERGRID System Development project-I
Loan given by World Bank to POWERGRID,
which has been closed in Dec., 2000 (Loan no.3577-IN)
392 PSDP-IIPOWERGRID System Development project-II
Loan given by World Bank to POWERGRID,which shall be closed in June, 2006 (Loan no.
4603-IN)
393 PSEBPunjab State Electricity Board
State Electricity Utility engaged in Generation,Transmission & Distribution of electricity in theState of Punjab
394 PSLPrice Store Ledger
395 PTCPower Trading Corporation of India Limited
The leading provider of power trading services, isempowering India by trading power on asustained basis since FY 02 through purchasefrom power surplus utilities and sales to deficitones.
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396 PURPermissive Under Reach
A type of inter-tripping scheme used in distance
protection of Transmission line
397 PVPrice Variation
The variation in price of an equipment/materialdue to changes in the cost of labour and rawmaterials.
398 PWProsecution Witness
A person who is produced by the DisciplinaryAuthority to prove the Charges against theCharged Officer.
399 QAQuadruple Circuit ‘A’ Type Tower
Type of Suspension Tower with 4 circuits
400 QAPQuality Assurance plan
Quality Assurance Plan is intended to assure thatall steps of the project are monitored andensures proper user acceptance criteria for eachtype of testing.
401 QBQuadruple Circuit ‘B’ Type Tower
Type of Tension Tower with 4 circuits
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402 QCQuadruple Circuit C Type Tower
Type of Tension Tower with 4 circuits
403 QDQuadruple Circuit D Type Tower
Type of Tension Tower with 4 circuits
404 QPR
Quarterly Performance ReviewDone by the Ministry of Power to Review theprogress of ongoing projects
405 QRQualifying Requirements
Issued for the purpose of shortlisting possible
bidders indicating broad parameters forparticipation in the bidding process
406 QSQualification Statement
A written response of an applicant to and inaccordance with RfQ.
407 QuadQuadruple
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408 R&RResettlement & Rehabilitation
To compensates/or rehabilitate project affected
persons whose land acquired for POWERGRIDprojects/sub station
409 RAPRehabilitation Action plan
Study of social status of all familities who come inproject area and in surroundings and detailed
action plan for measures adopted to rehabilitatethem
410 RCRiver Crossing
411 RCERevised Cost Estimate
Prepared when expenditure incurred is approx.50% of approved cost or scope of the projectchanges
412 RCODRequired Commercial Operation Date
The date by which the lines are required to becommissioned.
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413 RDARegular Departmental Action
Initiation of Disciplinary Proceedings by issuing
Charge Sheet.
414 RERevised Estimate
415
REARegional Energy Accounting
A Regional Energy Account for the settlementand billing of "Capacity Charge", Energy Charge"for deviations from schedule and 'ReactiveEnergy Charge'
416 REBRegional Electricity Board
A board constituted by resolution of CentralGovernment for a specified region for facilitatingthe integrated operation of the power system inthat region
417 REFRestricted Earth Fault
A protection provided in Transformers/ reactorsto trip during internal fault
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418 REMTRAMReal Time Monitoring of Transmission linesfor Maintenance
Device mounted on transmission tower to provideinformation on climatic and other changingparameters
419 RfPRequest for Proposal
Document issued to the Qualified Applicants for
submission of Techno-commercial and PriceProposals.
420 RfQRequest for Qualification
Document for submission of Qualificationstatement for IPTC/JV route by an interestedentity.
421 RfSRequest for Selection
Document comprising terms & conditionsregarding Joint Venture partner for selection & itincludes Shareholders agreement,Implementation Agreement & Transmission
Service Agreement.
422 RHQRegional Head Quarter
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423 RIPResin Impregnated Paper
Used as insulator inside RIP transformer
bushings
424 RIVRadio Interference Voltage
425
RLReduced Level
426 RLAResidual Life Assessment
Special tests carried out on equipments to
determine the life left in the equipment
427 RLDCRegional Load Despatch Centre
428
RoEReturn on Equity
It is the returen on investment made
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429 RoNWReturn on Net Worth
RONW is the ratio of net profit & net worth
(assets-liabilities)
430 ROWRight of Way
431
RPCReactive Power Control
A feature of High Voltage Direct Current toabsorb/ deliver reactive power
432 RRVUNLRajasthan Rajya Vidyut Utpadan Nigam Ltd.
A Generation Company which owns and operatethe thermal power stations at Kota andSuratgarh, Gas based power station at Ramgarh,Hydel power station at Mahi and mini hydelstations in the State of Rajasthan.
433 RTDResistance Temperature Detector
Resistance based thermometer for measurementof temperature
434 RTLRegional Testing Laboratory
POWERGRID Testing laboratory for conditionmonitoring testing at Regional level
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435 RVMRecovery Voltage Measurement
Condition monitoring test to identify moisture
content in paper insulation
436 S/CSingle Circuit
437
SADSpecial Additional Duty
duty levied on imported goods in lieu of salestax,local tax etc
438 SAMPSocial Assessment Management Plan
Outage due to operation of Bus-bar protection,attributable to POWERGRID.
439 SBB-TSubstation Bus Bar fault POWERGRID
Outage due to operation of Bus-bar protection,attributable to other utilities
440 SBB-USubstation Bus Bar fault (attributable to otherUtilities)
Bus-bar protection operation attributable to otherUtilities
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441 SBCSafe Bearing Capacity
Bearing capacity of soil
442 SBDStandard Bidding Documents
Bidding documents which have beenstandardized to ensure uniformity for variouspackages and under various funding.
443 SCSupreme Court
Apex Court of the Country
444 SCShell Company
A project specific company (Special PurposeVehicle) registered under Companies act 1956 toexpedite initial developmental activities. Suchcompany shall be acquired by the selectedsponsor to become IPTC.
445 SCCSpecial Conditions of Contract
A part of bidding document which further givesspecific details in respect of certain clauses ongeneral condition of contract.
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446 SCCSupreme Court Cases
Name of jourrnal Reporting decided cases by
Supreme Court
447 SCOPEStanding Conference on Public Enterprises
Deals with the matters related to MoU withvarious public undertakings
448 SCPSingle Curreny Pool
Allows borrowers to receive loans denominatedin one of four hard currencies ß U.S. dollars,Swiss francs, Japanese yen, or Deutsche marks
449 SCSDSubstation Construction of new SystemDeemed available
Substation equipment shutdown taken tofacilitate construction activities of new systembeing executed by POWERGRID
450 SDHSynchronour Digital Hierarchy
Transmission in which data characters and bitsare transmitted at a fixed rate with the transmitterand receiver synchronised, eliminating the needfor start-stop elements. Wherein variouscontainers are packed in a hierachical mannerand each virtual container can be addresseduniquely and can be dropped and added fromany level of signal.
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451 SDOE, TripuraState Department of Electricity Tripura
State Electricity Utility engaged in Generation,
Transmission & Distribution of electricity in theState
452 SEBsState Electricity Boards
Boards formed to look after generation,transmission & distribution of electrical energy in
respective States
453 SED, MizoramState Electricity Department, Mizoram
State Electricity Utility engaged in Generation,Transmission & Distribution of electricity in theState
454 SEF-TSubstation Equipment Failure POWERGRID
Equipment failure attributable to POWERGRID
455 SEF-USubstation Equipment Failure Utilities
Equipment failure attributable to other Utilities
456 SEKSwedish krona
Currency of Sweden
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457 SEMSpecial Energy Meter
Energy Meter which records data at every 15
minutes interval as per requirement of AvailabilityBased Tariff.
458 SEM-TSubstation Equipment Maloperation(attributable to POWERGRID)
Equipment Maloperation attributable to
POWERGRID
459 SEM-USubstation Equipment Maloperation(attributable to other Utilities)
Equipment Mal-operation attributable to otherUtilities
460 SERSequence Event Recorder
Records sequence of events during tripping/ disturbance
461 SESSocio-Economic Survey
Door to Door social survey of Project AffecetdPersons/Project Affected Families includingsurrounding villages for their social and economicbackground/conditions. This is being done by3rd party where PAFs are more than 40.
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462 SF6Sulfur Hexa Fluoride
An insulating gas used in Circuit Breakers/ Gas
insulated Switch gears
463 SFCStanding Finance Committee
The project approving authority when project costis more than Rs. 5 Cr. &less than Rs. 25 Cr. & itis funded by multilateral agencies
464 SFRSubmerged Fissured Rock
Type of Foundation
465 SGI
Solicitor General of IndiaAdvocate appointed for representing the UnionGovt before the Court.
466 SGMLStandardised General Markup Language
A programming language for web pages.
467 SHAShare-holer Agreement
Tripartie agreement among Joint Venturepartners & Joint Venture Company regardingobligation & responsibilities of Shareholders
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468 SISingle Suspension
Configuration of Insulator String
469 SIC-TSubstation ICT fault (attributable toPOWERGRID)
Various types of faults on interconnectingtransformer, attributable to POWERGRID.
470 SIC-USubstation ICT fault (attributable to otherUtilities)
Various types of faults interconnectingtransformer, attributable to other utilities.
471
SIL Surge Impedance Loading
Surge Impedance Loading is the power deliveredto the surge impedance (characteristicimpedance) under nominal voltage condition.
472 SISSelf Insurance Scheme
Insurace scheme devised by POWERGRID forinsuring its assets.
473 SIVStores Issue Voucher
Form which is used for issuing materials fromstores
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Abbrevations in POWERGRID
474 SLDSingle line Diagram
Schematic representation of the High
Voltage/Extra High Voltage apparatus and theconnections to all external circuits at aconnection point incorporating its numberingnomenclature and labeling
475 SLPSpecial Leave Petition
Special Leave to Appeal by the Supreme Court
476 SMACSubstation Miscreants Activity Constraints
Substation equipments failure caused bymiscreants / militant activities
477 SMTPSimple Mail Transport Protocol
The Protocol through whcih outgoing mail is sentover the internet.
478 SNCCSubstation Natural Calamity Constraints
Substation equipment outage due to naturalcalamities
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Abbrevations in POWERGRID
479 SOTFSwitch On To Fault
Feature in line protection to trip the line
immediately when line breaker is closed beforeclearance of fault/ earth switches not removed
480 SPDSikkim Power Department
State Electricity Utility engaged in Generation,Transmission & Distribution of electricity in the
State of Sikkim.
481 SPL-TSubstation PLCC maloperation POWERGRID
Line tripped due to Power Line CarroerCommunication mal-operation attributable toPOWERGRID
482 SPLUSubstation PLCC maloperation Utilities
Line tripped due to PLCC mal-operation of otheragency
483 SponsorSponsor
Bidder that submits a proposal and is selected byPOWERGRID as the winning Bidder to acquirethe projetc specific shell company.
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484 SPRDSubstation (Transformer) Power RegulationDeemed available
Transformer hand tripped for power regulation onRegional Load Despatch Centre instruction
485 SPSSuspected Public Servant
A public Servant who is under investigation byVigilance.
486 SPTStandard Penetration Test
Test for soil condition
487 SPV
Special Purpose VehicleMechanism formed for any specific venture
488 SRE-TSubstation Reactor fault POWERGRID
Outages due to opeartion of reactor differential,REF, Backup impedance, Buchholz protection
including Neutral Groung Reactor protectionswith respect to shunt reactors attributable toPOWERGRID
489 SRE-USubstation Reactor fault utilities.
As above, attributable to other utilities.
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Abbrevations in POWERGRID
490 SRM-TSubstation Relay Maloperation POWERGRID
Relay Maloperation attributable to POWERGRID
491 SRM-USubstation Relay Maloperation Utilities
Relay Mal-operation attributable to other Utilities
492 SRV
Store Receipt Voucher
493 SSSystem Server
Server which manages the requisites of anetworked environment
494 SSID committeeScrap & Surplus Identification and Disposalcommittee
the committee constituted to identify the scrap &surplus material at various sites for disposal
495 STSales Tax
Tax levied and collected at the point of sale ofgoods
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Abbrevations in POWERGRID
496 STSingle Tension
Configuration of Insulator String
497 STLSpecialized Testing Laboratory
POWERGRID laboratory for special conditionmonitoring testing of switchyard equipment.
498
STSSynchronous Transmission System
Transmission in which data characters and bitsare transmitted at a fixed rate with the transmitterand receiver synchronised, eliminating the needfor start-stop elements
499 SVCStatic Voltage Ampere Reactive Compensator
A shunt device to provide reactive and capacitivepower support to grid to control system voltage
500 SVRDSubstation (Bus Reactor) Voltage RegulationDeemed available
Bus reactor hand tripped for voltage regulation onRegional Load Despatch Centre instruction
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501 TCTender Committee
A committee comprising representatives from
Contract, Finance and indenting deptt.,constituted for the purpose of evaluation of bidsfor a package.
502 TCCTechnical co-ordination committee
The committee set up by Regional Electricity
Boards to coordinate the technical andcommercial aspects of the operation of theregional grid.
503 TCP/IPTransmission Control Protocol / InternetProtocol.
A protocol suite enabling data communications
over a network / internet
504 TCSCThyristor Controlled Series Compensation
Reactive Power Compensating Device
505
TETechnical Examiner
An Officer from Xhief Technical Examiner wing ofCentral Vigilance Commission who inspects theTechnical works during execution.
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506 TFRTower Footing Resistance
507 THDCTehri Hydro Development CorporationLtd.(THDC)
A joint venture company between Govt. of India &Govt. of UP/Uttaranchal for harnessing thehydropotential for generation of elctricity in Tehri
Region.
508 TLTranmission Line
509
TMN Telecommunication Management Network
A comprehensive system of equipment used tomonitor, control, and manage a communicationnetwork.
510 TNEBTamil Nadu Electricity Board
State Electricity Utility engaged in Generation,Transmission & Distribution of electricity in theState of Tamil Nadu.
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511 TPATri-partite Agreement
It is the agreement between Govt. of India,
Reserve Bank of India and POWERGRID forsecuritisation of outstanding dues
512 TPRMTri-partite Review Meeting
Meeting taken by Asian Development Bank twicein a year in association with Ministry of Finance
to assess the loan utilisation, disbursement,project progress etc.
513 Transmission LicTransmission Licensee
Licensee authorised to establish or operatetransmission line
514 TSTechnical Specifications
Provided in the bidding document stating thetechnical specifications of the work
515 TSTerminal Server
Server which provides application and fileservices for the terminal users
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516 TSATransmission Service Agreement
The agreement to be entered between
POWERGRID and JV company/IPTC pursuant towhich JV/IPTC shall maintain and repair theproject as well as make available the entireprojtect to POWERGRID on a commercial basisduring operation pahse of the project.
517 TSETime Synchronizing Equipment
An equipment used for synchronizing local timewith respect to the time signal received fromsatellite
518 TSEBTripura State Electricity Board
State Electricity Utility engaged in Generation,
Transmission & Distribution of electricity in theState of Tripura.
519 TPCLTata Power Company Ltd.
India's largest private sector power utility with2300 MW Capacity operating in Mumbai,
Jharkand and Karnataka, providing high qualityPower Supply.
520 TVITelevision Interference
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521 UCUtilization Certificate
Certificate issued by the Head of the project
regarding utilization of the imported goods
522 UCPTTUniform Common Pool Transmission Tariff
It is the transmission tariff fixed by GoI for NorthEast Region Constituents
523 UDSUndisturbed Sample
Sampling of soil
524 UFRUnder Frequency Relay
Relay used to trip a distribution feeder on lowfrequency
525 UIUnscheduled interchange
Deviation from the scheduled interchange ofPower allocated by Regional Load Despatch
Centre on day to day basis requirement
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526 ULDCUnified Load Despatch & CommunicationScheme
Scheme for optimal utilization of generation andtransmission resources, better Supervision,monitoring and control of power system on real-time basis
527 UMCSUnified Materials Codification System
Document covering codification system concept,make,location and unit code.
528 UPCLUttaranchal Power Corporation Ltd.
A company engaged in transmission &distribution of electricity in the State of Uttaranch
529 UPPCLUttar Pradesh Power Corporation Ltd.
A company engaged in tranmission & distributionof electricity in the State of Uttar Pradesh
530 URLUniversal Resource Locator
Location of file on the internet.
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Abbrevations in POWERGRID
531 USAIDThe United States Agency for InternationalDevelopment
USAID is the government agency providing USeconomic and humanitarian assistance worldwide
532 USD (US$)United States Dollar
Currency of the United States
533 VARVoltage Ampere Reactive
534 VASValue Added Services
Additional services without any extra costimplication
535 VCVirtual Circuit
A communication arrangement in which datafrom a source user may be transferred to a
destination user over various real curcitconfigurations during a single poeriod ofcommunication.
536 VTVoltage Transformer
Instrument transformer in switchyard to measureVoltage
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537 W S/DWithout Shut Down
Maintenance activities to be carried out with out
affecting normal operation of the equipment
538 WAPWireless Application Protocol
The protocol through which institutionway data issend to third generation wireless applicationprotocol mobile phones.
539 WAPPWorks and Procurement Policy andProcedures.
Manuals containing details of Procurement Policy& Procedures.
540 WBThe World Bank
World's largest financial providing financialassistance primarily to developing nations
541 WEIWeak End Infeed
Feature in line protection to trip the line on bothend even in case of radial feeding/ low infeed offault current
542 WFRWet Fissured Rock
Type of Foundation
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543 WMLWireless Markup Language
The language for wireless application protocol
mobile phone programs.
544 WPIIndian Whole Sale Price Index
The "All Indian Wholesale Price Index" aspublished monthly in the Index Number ofwholesale Prices and Consumer Prices by the
Centre for monitoring the Indian Economy for theavailable calendar year.
545 WTWave Trap
Used to filter out power line carrirercommunication signals traveling in transmissionlines at entry of Substation
546 WTIWinding Temperature Indicator
Measures transformer/ reactor windingtemperature for indication and to give alarm/ tripat preset values
547 WWWWorld Wide Web
The graphical information portion of the internet.
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548 WZWind Zone