Download - 6 Session 3B Transmission Ravinder
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PRESENTATION ON
TRANSMISSION SYSTEM REQUIREMENT
FOR THE 12TH PLAN ( 20012-17)
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TRANSMISSION CORRIDORS PLANNED
1. SOUTHERN REGION2. WESTERN REGION
3. EASTERN REGION
4. NORTHERN REGION
i. Uttranchal
ii. Rabi Basin
iii. Satluj Basin
iv. Beas Basin5. SIKKIM
http://../Local%20Settings/Temp/notes6030C8/SR.pdfhttp://../Local%20Settings/Temp/notes6030C8/WR.pdfhttp://../Local%20Settings/Temp/notes6030C8/EASTERN%20REGION.pdfhttp://../Local%20Settings/Temp/notes6030C8/Uttaranchal.pdfhttp://../Local%20Settings/Temp/notes6030C8/RABI%20BASIN.pdfhttp://../Local%20Settings/Temp/notes6030C8/satluj.pdfhttp://../Local%20Settings/Temp/notes6030C8/BEAS%20BASIN.pdfhttp://../Local%20Settings/Temp/notes6030C8/sikkim.pdfhttp://../Local%20Settings/Temp/sikkim-V.pdfhttp://../Local%20Settings/Temp/sikkim-V.pdfhttp://../Local%20Settings/Temp/notes6030C8/sikkim.pdfhttp://../Local%20Settings/Temp/notes6030C8/BEAS%20BASIN.pdfhttp://../Local%20Settings/Temp/notes6030C8/satluj.pdfhttp://../Local%20Settings/Temp/notes6030C8/RABI%20BASIN.pdfhttp://../Local%20Settings/Temp/notes6030C8/Uttaranchal.pdfhttp://../Local%20Settings/Temp/notes6030C8/EASTERN%20REGION.pdfhttp://../Local%20Settings/Temp/notes6030C8/WR.pdfhttp://../Local%20Settings/Temp/notes6030C8/SR.pdf -
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Expected Transmission Requirement 2012-17
Expected Transmission Requirement All India
+/- 800 kV HVDC Bipole Projects, 6000 MW 2 to 3
+/- 600 kV HVDC Bipole Projects, 4000 MW 1
HVDC Bipole +/- 800 kV ckm 4000
HVDC Bipole +/- 600 kV ckm 1000
765/400 kV substation nos. 40 to 50
765 kV Transmission Lines ckm 25,000 to 30,000
765/400 kV MVA 1,10,000
400 kV Transmission Line ckm ( 40% quad, 60% TM) 50,000400/220 kV , 400/132 kV (MVA) 80,000
220 kV Transmission Line ckm 40,000
220/132, 220/110 95,000
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Existing Transmission Lines and expansion
during 2012-17 (in ckm)
Transmissionlines
Existing(ckm) by 10th
plan
Additions11th plan
Total byMarch2012
Estimatedadditionsin12th plan
765 kV 2184 5428 7612 25,000 to30,000
HVDC 500 kV 5872 1606 7478
HVDC800/600 kV
0 3600 3600 5000
400 kV 75722 49278 12500050,000
220 kV 114629 35371 150000 40,000
Total ckm 198569 95283 293852 155,000 to180,000
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Existing HVDC/Substation capacity and expansion
during 2012-17 (MVA/MW)
Substation ExistingMVA/MW by 10th
plan
Additions 11th
plan Total byMarch 2012 Estimatedadditions in12th
plan
HVDC BTB 3000 500 3500 0
HVDC
Bipole+Monopole
5200 5500 10700 16,000 to 22,000
Total HVDC terminalcapacity
8200 6000 14200 16,000 to 22,000
765 kV 0 53000 53000 1,10,000
400 kV 92942 52058 145000 80,000
230/220 kV 156497 73503 230000 95,000
Total 249439 178561 428000 295,000
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Details of Inter-Regional Capacity Existingand Planned for 11th & 12th Plan
System By 10th
plan Additions11th plan By 11th
Plan Additions in12th Plan By 12th
Plan
ER-SR 3130 500 3630 4200 7830
ER-NR 3430 8700 12130 5900 18030
ER-WR 1790 4700 6490 10500 16990ER-NER 1260 1600 2860 0 2860
NR-WR 2120 2100 4220 10200 14420
WR-SR 1720 1000 2720 6300 9020
NER/ER-NR/WR
0 6000 6000 0 6000
132 /110 kV 600 0 600 0 600
TOTAL 14050 24600 38650 37100 75750
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EXPECTED REQUIREMENT OF INSULATORS FORTRANSMISSION LINES 2012-17
Transmission line Insulator Discs (lakhs)
+/- 800 kV HVDC 48
765 kV 260
400 kV 300
220 kV 100
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Expected Requirement of 765 kV Equipment and Material
Quantity
765 kV 500 MVA 1phase Transformer (nos.) 210
765 kV 333 MVA 1 phase Transformer (nos.) 70
80 MVAr 1 phase Reactors (nos) 480
765 kV bays (nos.) 280
765 kV CB (sets) 420
765 kV Current Transformers (sets) 560
765 kV CVTs (sets) 240765 kV Isolators (sets) 1100
765 kV LAs (sets) 280
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Expected Requirement of 400 kV Equipment and Material
Quantity
400 kV 500 MVA 3 phase Transformer (nos.) 70
400 kV 315 MVA 3 phase Transformer (nos.) 150
50 MVAr 3 phase Reactors (nos) 440
400 kV bays (nos.) 660
400 kV CB (sets) 1000
400 kV Current Transformers (sets) 1300
400 kV CVTs (sets) 880400 kV Isolators (sets) 2600
400 kV LAs (sets) 660
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Expected Requirement of 220 kV S/S Equipment
(Number)
Quantity220 kV 160 MVA 3 phase Transformer (nos.) 600
220 kV bays (nos.) 2400
220 kV Circuit Breakers (sets) 2400220 kV Current Transformers (sets) 2400
220 kV CVTs (sets) 3100
220 kV Isolators (sets) 9600
220 kV LAs(sets) 2400
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Acquisition of Land and ROW Issues
ROW and acquisition of land are major hurdles in
development of transmission system. The problem is more
acute in the urban areas.
Problem of land acquisition can be mitigated by going for GISsubstations. Since Indian market is price sensitive, if GIS
manufacturers bring down prices further there is great scope
for GIS switchgear in the Indian transmission and sub-
transmission market. Similarly there is considerable scope formarketing underground EHV cables at competitive prices.
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Acquisition of Land and ROW Issues
ROW issue to be mitigated through increasing Density ofTransmission through
UHV AC/DC Lines
FACTS High temperature endurance conductor
Multi-circuit lines
High surge Impedance Loading (HSIL) lines.
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Compression of Execution Time
Reduction of Time of Execution
through GIS, GPS based line
route survey
Standardization of Designs
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Standardization of Tower Designs Testing of Towers is a time consuming process taking 6-12
months
Delay have been observed in some of the projects where designswere in contractorss scope due to delay in testing of towers
Design & testing activity can be taken up by utility in advance orparallely to project approval activities
Design may be standardized for different wind zones / differentvoltages so that repeated activities can be avoided
Tested design to be given to the contractors after placement ofaward. Though quantities shall be on tonnage basis to avoid non-sequential supply provisions for payment on completed tower
basis should be kept.
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Standardization of Designs
Designs & Drawing may also be standardized to the extent
possible for the following:
Insulator , Hardware fittings, accessories for Transmission Line
Substation structures
Substation equipments like CB, CT, CVT, LA, Insulators etc.
Control room building, other buildings, colony
In order to reduce problem of land acquisition and related R&R
efforts should be made to reduce substation land requirement by
compact layouts, compact switchgear & GIS substation.
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Online Testing Facility for Transformers
All high-capacity EHV transformers installed in India are
presently being sent to KEMA, Netherlands-based electrical
equipment testing organisation, before being commissioned. This
leads to an average delay of 5-9 months in the commissioning
schedule
Under initiative of MoP JV of four Public Sector Undertakings
(PSUs)- NTPC,NHPC,DVC& PGCIL has been formed to
establish a domestic on line testing facility to perform short circuit
test on EHV Transformer upto 400 kV.
The testing facility is expected to come up in two years time
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