metering & protection systems -...
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P R O D U C T C A T A L O G
Metering & Protection SystemsC o m p l e t e S o l u t i o n s f o r I n d u s t r i e s a n d U t i l i t i e s
Webs i te : http : / / w w w. lnteb g .co m
Larsen & Toubro (L&T) is a technology driven engineering company, and one of the largest companies in India’s private sector. It has additional interests in manufacturing, services and Information Technology.
A strong, customer-focused approach and the constant quest for top-class quality have enabled the Company to attain and sustain leadership in its major lines of business for over seven decades.
We manufacture and market a comprehensive range of high quality electronic energy meters, metering solutions and numerical relaysfor utilities, industries and commercial establishments.
L&T products are designed and developedin-house and conform to relevant Indian and international standards. The products are manufactured at L&T’s Mysore Campus, which is equipped with the state-of-the-art testing facilities.
L&T through its emphasis on innovation, technology and quality is committed to supporting its customers with accurate, reliable and easy to use electronic metering and protection solutions.
T H E R I G H T M E A S U R E
®L&T Meters
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With over a decade of experience in design, manufacturing and supply of electronic electricity meters to Indian utilities, L&T today is a leading player in the electricity metering segment in India.
L&T entered the market in the early 90s on the strength of its indigenously designed single phase and poly-phase meters.Since then, a strong emphasis on design and testing coupled with the ability to meet utilities’ express and implied needs has resulted in development of meters that are accurate, easy to read and more importantly reliable on the Indian distribution network.
L&T’s meters and metering solutions have found wide acceptance in India from all its major customers including industries, private utilities, electricity boards, transmission companies and generation companies.
L&T also exports meters to select countries in Africa and Asia, where the products have gained wide acceptance.
RESIDENTIALMETERING
L&T Metering provides accurate andreliable solutions for residentialmetering.
This compact single phase meter fits snugly into any meter
box. The bright back-lit display ensures ease of reading.
Class 1 accuracy as per IS and IEC standards
Forward energy recording irrespective of current direction
Optical port/RS 232 port (optional)
Indication for power on, current reversal and ELT
Reset backups and TOD facility
High surge withstand capability
Anti-tamper features
174 H x 141 B x 74 D mm
Features
Dimensions
EM101+ Single Phase Meter
02 L & T M E T E R S T H E R I G H T M E A S U R E
EM301 Three Phase Meter The superiority of this meter lies in its ability to work
normally under reverse current, unbalance voltage and
current, reversed phase sequence and voltage variation.
Class 1 accuracy
LEDs indicating presence of each phase
Withstands 440V between phase and neutral
Maintains accuracy under current reversal conditions
High surge withstand capability up to 8kV
Polycarbonate enclosure
Anti-tamper features
172 H X 180.5 B X 76 D mm
Features
Dimensions
COMMERCIAL &INDUSTRIAL METERING
The trusted choice for industrialand commercial metering, L&TMetering offers flexible productswith a wide range of features.
ER300P is a tri-vector meter which integrates several functions and replaces various equipment for metering energy parameters. This meter is used for commercial metering and for metering of small industrial loads.The meter has advanced data recording capabilities.
Class 1.0 accuracy as per revelant IS and IEC Standards
10-40, 10-60, 20-100 A current rating
Upto 3 Maximum Demand registers
Load Survey
Anti-tamper features
Self diagnostic capability
Optical port/RS 232 (optional)
327 H x 187 B x 120 D mm
Features
Dimensions
ER300P LT Whole Current Meter
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ER300P This meter is designed for metering of HT/LT consumers feeders. The meter has advanced data and tamper recording capabilities and is provided with communication ports. Software is available for data collection, load survey analysis and energy management applications. The meter can be interfaced to a variety of communication devices.
Class 0.2s,0.5s,1.0 as per relevant IS and IEC Standards
1A and 5A current rating
3Phase 4 Wire/3Phase 3 Wire system
Anti-tamper features
Self diagnostic capability
Multiple tariff feature
Upto 3 Maximum Demand registers
Load Survey features
Upto 12 reset backups
Optical port/RS 232/RS485 (optional)
327 H x 187 B x 104 D mm
Features
Dimensions
CT Operated Meter
UTILITYMETERING
L&T’s high accuracy meters are used by manyof the largest utilities for measurement of bulkinter-utility power flow.
ER300P ABT Meter
This single phase meter designed for DT metering offers
higher accuracy and better features to suit the customer’s
requirements.
Class 0.5s accuracy for active and class1.0 accuracy for
reactive as per IS & IEC standards
CT operated meter with 5A(Ib) to 10A(Imax.)
Pulse LED output
Indication for power on, current reversal,
ELT and neutral missing
Load Survey, reset back ups and TOD features
Optical port
174 H X 141 B X 85 D mm
Features
Dimensions
EM101+ Single Phase DT Meter
04 L & T M E T E R S T H E R I G H T M E A S U R E
L&T’s high accuracy ABT meter provides a flexible solution for
energy monitoring and billing bulk inter utility power flows.
This meter is the preferred choice for major utilities in India.
Class 0.2s accuracy
3 Phase 4 Wire
Conforms to IEC and IS standards
15 minute block average for frequency and energy
Frequency coding for billing
Separate reactive energy registers linked to
supply voltage
Midnight storage of energies
Load Survey
Optical port/RS 485 communication (optional)
327 H x 167 B x 104 D mm
Features
Dimensions
ENERGY MANAGEMENTSYSTEMS
L&T Metering offers flush mountversions of its Trivector meter,which can be used in panels fornon tariff energy measurementand for load control.
This meter uses DSP technology to measure both instantaneous and cumulative values in an electrical circuit. The parameters are shown on a 3-line display that can be scrolled through using push buttons.
Class 0.5s and class 1.0 accuracy as per IS and IEC standards
LCD display with backlight
CT/PT programming
LT/HT models
Current ratings of 1A and 5A
RS 485 communication (optional)
96 L x 96 B x 112.5 D mm
Features
Dimensions
Intelligent Panel Meter
This panel meter measures voltage, current and kWh energy in a 3 phase 4 wire system. The meter has an LCD display with backlight, thus enabling ease of reading.
Class 1 accuracy
AC/DC auxiliary supply
RS 485 communication
Password protected CT/PT value programming
96 L x 96 B x 105 D mm
Features
Dimensions
3P4W kWh Meterwith RS 485
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Dual Source Meter
QUASAR™
NOVA™
GEMiNi This panel meter is designed for dual source energy measurement. It serves as a replacement for two separate energy meters, necessary for metering applications with dual energy sources.
LCD display
Class 1 accuracy
Separate registers available for measurement of utility power and generator power
AC/DC auxiliary supply
RS 485 communication
Password protected CT/PT value programming
96 L x 96 B x 105 D mm
Features
Dimensions
ENERGY MANAGEMENTSYSTEMS
L&T Metering’s panel metersfind wide application in a varietyof switch-boards and panelsbecause of their flexibility andease of use.
This counter meter is used in control panels to measure kWh energy. This product is available in both LT and HT models.
Class 1 accuracy
kWh measurement
1A and 5A current rating
Pulse LED output
Terminal covers with sealing provision
96 L x 96 B x 100 D mm
Features
Dimensions
®ACRUX Electronic Energy Meter
The VEGA range consists of panel meters which measure electrical parameters such as voltage, current and energy. These meters can be used for both LT and HT applications. This range includes:
• Single function meters-voltmeters, ammeters, frequency meters
• VAF meters: display voltage, current, and frequency on a 3-line display
• Multifunction meters: display energies, demands and import/export values. They are available in 3 variants:Model A: Displays voltages, currents, power and energyModel B: Model A + neutral current + demand parametersModel C: Model B + import/export
LED display
Class 1 accuracy
Password protected programming
Current ratings of 1A and 5A
RS 485 communication (select models only)
Relays for fault tripping (optional)
Single function meters : 96 L x 96 B x 45 D mm
VAF meter : 96 L x 96 B x 45 D mm
Multifunction meters : 96 L x 96 B x 65 D mm
Features
Dimensions
Digital Panel MeterVEGA™
06 L & T M E T E R S T H E R I G H T M E A S U R E
ENERGY MANAGEMENTSYSTEMS
mi-Energy is a DIN-rail mounted energy meter. Available in
1- and 3-phase models, these meters are useful in monitoring
energy consumption in distribution boards and cabinets. With
an additional Wi-Fi module, meter data can be easily viewed
on laptops and smart phones.
LCD display
Class 2 accuracy
Displays day, week, month and push-to-push consumption
Optical communication port
Reverse current indication (for 3 phase models only)
3 phase: 125 L x 83 B x 63.5 D mm
1 phase: 36 L x 83 B x 66.73 D mm
Features
Dimensions
mi-Energy™ DIN Rail Energy Meter
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Reactive power manager is designed for automatic control of
capacitor banks in 3 phase 4 wire LT distribution systems.
The relay maintains the system power factor at a set value,
under fluctuating load conditions, by connecting or
disconnecting capacitor banks to the 415V bus.
Automatic C/K ratio selection
Power Factor correction up to 1% of rated current
8/14 capacitor banks
Programmable CT ratio and capacitor bank values
Voltage, current and reactive power display
144 H X 144 B X 110 D mm
Features
Dimensions
Reactive Power ManagerRPM 8/14
L&T provides compact and economical metering solutionsto monitor loads for betterenergy management.
METERINGSOLUTIONS
L&T has ready-to-use AMR solutions fordisplay, analysis and reporting of meterdata using a simple, easy-to-understanduser interface.
VinPlus is the application software used with tariff meters.
VinPlus supports convenient collection of energy data either
directly from remote TVM or from HHU’s.
Energy data collected from TVM or HHU is categorized into
instantaneous values, cumulative energies, reset back-ups,
Load survey data and Tamper records.
User is given option to collect full data as well as specific data
such as Current Bill, Previous Bill, Tamper Data, Load Survey
or Instantaneous values from Meter. The collected data can
be viewed in the form of reports.
VinPlus Data Collection and Analysis Tool
PRIMAS is a Data Acquisition and Energy Audit Software. The
software acquires and manages vast data collected from
meters installed at various levels in the distribution network.
Logs data from the TVMs connected at the various levels in
the distribution network
Segregates the collected data and shows it in different views
such as feeder view and station view
Generates multiple reports required for energy audit
Robust database and user friendly interface
Features
PRIMAS Data Acquisition and EnergyAudit Software
08 L & T M E T E R S T H E R I G H T M E A S U R E
METERINGSOLUTIONS
L&T provides comprehensive end-to-endsolution for data logging andremote reading of meters.
SANGRAHA is a meter data acquisition software for
collection of data from energy meters. It is a web application
which hosts MIOS-compliant APIs to collect meter data and
convert the raw data into common document format files.
Data collection is independent of meter make, type or
manufacturer (subject to availability of respective
manufacturer’s MIOS APIs.)
Data is collected through different channels such as GSM,
PSTN, GPRS and MRI devices. MODBUS data can also be
collected for a defined frequency / time-interval.
Schedules can be configured for automatic collection
and based on multiple parameters as inputs. The reports and
logs in the application depict data acquisition status and
allow for monitoring. Data integrity is maintained at 3 levels.
SANGRAHA Meter Data AcquisitionSystem
CMG 300 GSM/GPRS Modem CMG 300 is a compact real time telemetric data collection
system. It supports both GSM and GPRS technologies.
Can be retrofitted to existing installed meters
Quick and easy installation
Power drawn from meter’s potential terminals
Rugged power supply
Sealable SIM card holder
Dual Band GSM 900/1800MHz
Supports Data and SMS
Maximum power output: 2W (900MHz) and 1W (1800MHz)
AT command set (GSM 07.05, GSM 07.007 and proprietary)
3V SIM interface
Hardware GPRS Class 10 capable
RS 232 port via 9 pin D sub-connector
Burden: 3.6VA
Optical cable for communication with meter
5 dB antenna
142 L X 128 B X 44.5 H mm
Features
Optional Accessories
Dimensions
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T R U L Y R E L I A B L E
®L&T Relays
10 L & T R E L A Y S T H E R I G H T M E A S U R E
L&T is a leading Indian manufacturer of high quality numerical relays. L&T focuses on providing cost effective solutions that adequately meet the need of its industrial customers. L&T is the popular choice for large industries and panel manufacturers in India.
L&T Provides:
lFeeder Protection Relays
lGenerator Protection Relays
lMotor Protection Relays
lTransformer Protection Relays
lVoltage and Frequency Relays
lPower Factor Controllers
lSynchronizing and Load Sharing Relays
lMonitoring, Control and Supervision Relays
PROTECTIVE RELAYS
MC31A is a three phase over current and Earth fault relay with 4 measuring elements. This relay can be used for feeder protection in all low voltage, medium voltage and high voltage sub-stations. The relay has a 4 digit seven segment LED display to read on line values, switch on values, last trip data and settings. It provides a choice of 7 trip time characteristics.
50N, 51N
Low Set O/C and Low Set earth fault
Time characteristics NI [1.3s, 3s], VI, EI andDefinite time [1S, 10S, 100S]
1A/ 5A CT secondary (Field selectable)
Last five trip data records
Self diagnostics
Front bezel 158 H x 136 B, Panel cutout 142 H x 113BDepth 224 mm
Features
Dimensions
MC31A Three Phase Over Currentand Earth Fault Relay
MC61A is a three phase over current and Earth fault relay with 4 measuring elements. The relay has built in high set (instantaneous trip) protection, for both over current and earth fault elements. The relay can be used for feeder protection in all low voltage, medium voltage and high voltage sub-stations. The relay has a 4 digit seven segment LED display to read on line values, switch on values, last trip data and settings. It provides choice of 7 trip time characteristics.
50/51, 50N/51N
Low Set O/C and Low Set earth fault
High Set O/C and High Set earth fault
Time characteristics NI, VI, EI and Definite time [1s, 10s, 100s]
Self diagnostics
Front bezel 158 H x 136 B, Panel cutout 142 H x 113 B
Depth 224 mm
Features
Dimensions
MC61A Three Phase Over Currentand Earth Fault Relay
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MC61C is a three phase over current and Earth fault relay
with 4 measuring elements. The relay has built in high set
(instantaneous trip) protection, for both over current and
earthfault elements. The relay has an RS485 port to link it to
SCADA system.
50/51, 50N/51N
Low Set O/C and Low Set earth fault
High Set O/C and High Set earth fault
Time characteristics NI, VI, EI or Definite time
Self diagnostics
RS 485 communication
Auto doubling of High Set
Breaker Control
Front Bezel 158 H x 136 B, Panel Cutout 142 H x 113 B
Depth 224 mm
Features
Dimensions
MC61C Three Phase Over CurrentEarth and Fault Relay
12 L & T R E L A Y S T H E R I G H T M E A S U R E
SC14S is a self-powered, single-phase, non-directional, Earth
fault relay with one measuring element. The relay can be
used for differential protection of generators, restricted
earth fault applications of generators and transformers in all
low voltage, medium voltage and high voltage sub-stations.
87N/64 R
Self powered
Time characteristics – instantaneous and time delayed
CT rating 1A/5A
2 C/O contacts (Self/Reset)
Front Bezel 158 H x 71 B, Panel Cutout 142 H x 62 B
Depth 224 mm
Features
Dimensions
SC14S Single Element Instanta-neous Earth Fault Relay
PROTECTIVE RELAYS
PROTECTIVE RELAYS
ME12A is a non-directional, earth fault relay with one
measuring element. The relay can be used for feeder
protection in all low voltage, medium voltage and high
voltage substations. The relay has a built in high set facility.
DIP switches are provided on the front panel for pick up and
time delay settings. User has a choice of 7 trip time
characteristics.
50N/51N
Low Set sensitive E/F and High Set sensitive E/F
Time characteristics NI, EI, VI, Definite Time
Harmonic rejection
2 C/O contacts (S/R)
Front Bezel 158 H x 71 B, Panel Cutout 142 H x 62 B
Depth 224 mm
Features
Dimensions
ME12A Sensitive Earth Fault Relay
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MV12A is suitable for over voltage/under voltage protection
schemes in LV, MV and HV power distribution systems. It is
also suitable for over voltage protection of AC circuits,
capacitors, machines such as generators, synchronous
motors and under voltage protection of AC circuits,
induction motors and automatic change over schemes.
Inverse Time and Definite Time characteristics
Built -in timer
2 C/O contacts
PT input 110V/240 V (site selectable)
Front Bezel 158 H x 71 B, Panel Cutout 142 H x 62 B
Depth 224 mm
Features
Dimensions
MV12A Single Phase Over/UnderVoltage Relay
MRP11 can be used for protection of generators from
reverse power conditions or in grid islanding systems for
detecting mains failure or prevention of power flow from
small generators to grid.
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PT Input VN 110 V, 240 V
CT Input 1A/5A
1 N/O + 1 C/0 contacts
Front Bezel 158 H x 71 B, Panel Cutout 142 H x 62 B
Depth 224 mm
Features
Dimensions
MRP11 Reverse Power Relay
14 L & T R E L A Y S T H E R I G H T M E A S U R E
PROTECTIVE RELAYS
MPR300 is a digital motor protection relay, which can be
used to protect 3 phase, 415 V AC, 50 Hz induction motors up
to 88 A rating. The heart of MPR300 is a micro controller
circuit supported by built in CTs for measurement.
Thermal overload protection (49)
Locked rotor protection (51LR)
Negative sequence protection (46)
Earth fault protection (51N)
Undercurrent protection (37)
Single phasing and no load running (46)
Built -in CTs
85 H X 70 B X 106 D mm
Features
Dimensions
MPR300 Motor Protection Relay
TESTING FACILITIES
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Test setups
Dry heat chamber
Rain chamber
Climatic chamber/reliability lab
Dust chamber
Electrostatic discharge simulator
Electrical fast transient simulator
Lighting surge simulator
Damped oscillator simulator
Conducted wave simulator
Vibration shaker system
AC voltage tester
Glow wire test
Insulation resistance tester
Mechanical shock simulator
Impulse voltage test
Radio interference test
Radiated susceptibility test
CT/PT tester
MMD calibrator
Magnetic test
Calibration test bench 0.01class accuracy
L&T is equipped with the latest test equipment including
environmental test chambers, comprehensive EMI/EMC
setups and high - energy lightning surge test facilities. This
lab has been accredited by NABL for calibration. Here our
products are constantly tested for function, accuracy,
insulation, response to climatic conditions, EMI/EMC and
mechanical requirements. Incoming inspection of
electrical and mechanical components, field failure
analysis, calibration of in-house equipment, outgoing
inspection and validation of meter software & base
computer software are done at the Lab.
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OUR COMMITMENT TO QUALITY
Deliver products and services meeting orexceeding customer requirements and expectations
while improving value to stakeholders
- From the Quality Policy of L&T Electrical & Automation ”“
We at L&T Metering and Protection Systems are
committed to providing our customers with the highest
quality products and services. All L&T MPS products
conform to relevant Indian and international standards.
INTERNATIONAL SALES
INDIA - SALES OFFICES
Northern Region
MPS International Sales
Metering & Protection Systems
Larsen & Toubro Limited
KIADB Industrial Area
Hebbal – Hootagalli
Mysore–570 018
Ph. No. +91 821 2405382
Fax No. +91 821 2402172
Delhi
Metering & Protection Systems
Larsen & Toubro Limited
32, Shivaji Marg
P.O. Box 6223
New Delhi–110 015
Ph. No. (011) 41419684
Fax No. (011) 41419600
Chandigarh
Metering & Protection Systems
Larsen & Toubro Limited
SCO 32
Sector 26-D
Madhya Marg
P.O. Box 14
Chandigarh–160 019
Ph. No. (0172) 4646851
Fax No. (0172) 4646802
Jaipur
Metering & Protection Systems
Larsen & Toubro Limited
D-24, Prithvi Raj Road
C-Scheme
P.O. Box 110
Jaipur–302 001
Ph. No. (0141) 2385920
LucknowMetering & Protection SystemsLarsen & Toubro LimitedA-28 Indira NagarFaizabad Road, Lucknow–226016Ph. No. (0522) 2311918
MumbaiMetering & Protection SystemsNorth Wing, Level-2, Gate No. 7Larsen & Toubro LimitedPowai (E), Mumbai–400 072Ph. No. (022) 67053035Fax No. (022) 67525858
VadodaraMetering & Protection SystemsLarsen & Toubro LimitedRadhadaya ComplexNear Charotar SocietyOld Padra Road, Baroda–390 015Ph. No. (0265) 2330765Fax No. (0265) 2336184
KolkataMetering & Protection SystemsLarsen & Toubro Limited3-B, Shakespeare SaraniP.O. Box 619, Kolkata–700 071Ph. No. (033) 44002450Fax. No. (033) 22823796
GuwahatiMetering & Protection SystemsLarsen & Toubro LimitedMilanpur RoadBamuni MaidanGuwahati–781 021Ph. No. (0361) 2550565
Western Region
Eastern Region
Southern Region
DIVISIONAL OFFICE
Bangalore
Metering & Protection Systems
Larsen & Toubro Limited
No. 38
Cubbon Road
Post Box No. 5098
Bangalore–560 001
Ph. No. (080) 25020341
Fax No. (080) 25596397
Chennai
Metering & Protection Systems
Larsen & Toubro Limited
Post Bag 5247
10, Club House Road
Anna Salai
Chennai–600 002
Ph. No. (044) 28462055
Fax No. (044) 28462102
Hyderabad
Metering & Protection Systems
Larsen & Toubro Limited
5-10-173
Fateh Maidan Road
P.O. Box 112
Hyderabad–500 004
Ph. No. (040) 66720318
Fax No. (040) 23242356
MPS Sales & Marketing
Metering & Protection Systems
Larsen & Toubro Limited
KIADB Industrial Area
Hebbal–Hootagalli
Mysore–570 018
Ph. No. (0821) 2405437
Fax No. (0821) 2402172
Product improvement is a continuous process. The information contained in this document is subject to change. Please contact any of ouroffices for more details on our products and services.
© 2011 L&T Electrical and Automation.
Metering & Protection Systems
Larsen & Toubro Limited
KIADB Industrial Area
Hebbal - Hootagalli
Mysore - 570 018
Ph. No. (0821) 2405467
Fax No. (0821) 2402172
e-mail: [email protected]