Lok Sabha Question No. 2377 (UNSTARRED), answered on 2020-03-05
Subject: Power Transmission Infrastructure
Ministry: POWER
Asked by: Devendrappa Y

## GOVERNMENT OF INDIA MINISTRY OF POWER

## LOK SABHA UNSTARRED QUESTION NO.2377 TO BE ANSWERED ON 05.03.2020

## POWER TRANSMISSION INFRASTRUCTURE

2377. SHRI Y. DEVENDRAPPA:

Will the Minister of POWER be pleased to state:

- (a) whether  the  Government  is  aware  that high and  extra-high voltage underground electricity cable systems rated 220 kv and above have become part of the backbone of modern day power transmission infrastructure;
- (b) if so, the details thereof;

(c) whether the Government has implemented such underground cable systems in any part of the country; and

- (d) if so, the details thereof and if not, the reasons therefor?

## A N S W E R

THE  MINISTER  OF  STATE  (INDEPENDENT  CHARGE)  FOR  POWER,  NEW  & RENEWABLE ENERGY AND THE MINISTER OF STATE FOR SKILL DEVELOPMENT & ENTREPRENEURSHIP

( SHRI  R.K. SINGH)

(a) : Underground cable systems of 220 kV and upto 400 kV voltage level are part of Indian Transmission Infrastructure. However, due to techno-economic reasons like higher reactive compensation requirement and higher cost compared to overhead system, underground cables are  being used on case by case basis for short distances, where laying of overhead transmission lines is difficult particularly  in  urban  areas  and  underground  generation  stations.  Underground Cable  systems  of  220  kV  and  upto  400  kV,  wherever  they  have  been  laid,  are therefore, an integral part of the Modern Day Power Transmission Infrastructure.

(b) to (d) : Underground  cable  systems  have  been  implemented  by  Central  and State Utilities in various parts of the country. Based on information available, the details of such cable system implemented / under implementation in transmission system of the country is given at Annexure.

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## ANNEXURE REFERRED TO IN REPLY TO PARTS (b) TO (d) OF UNSTARRED QUESTION NO. 2377 TO BE ANSWERED IN THE LOK SABHA ON 05.03.2020.

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List of underground cable system (220kV & above) in different parts of the country.

|   Sl. No. | Name of Transmission element                                                                    | Voltage level (kV)   | Executing Agency   |   Length (Km) | Commissioning Date   |
|-----------|-------------------------------------------------------------------------------------------------|----------------------|--------------------|---------------|----------------------|
|         1 | In Gagangir, Z-Morh area of Srinagar (near Zojila pass) under Srinagar -Leh transmission system | 220                  | PGCIL              |           6.2 | Nov'18               |
|         2 | Pugalur to North Trichur                                                                        | 320 (HVDC)           | PGCIL              |          32   | Under Execution      |
|         3 | LILO of Padghe (MSEB) - Kharghar (MSEB) at Navi Mumbai (PG)                                     | 400                  | PGCIL              |           2   | Jun'19               |
|         4 | Sriganayakanahalli S/s - DG Plant Yelahanka Station (UG Cable)                                  | 220                  | KPTCL              |           6   | Sep'18               |
|         5 | Guindy - Porr GIS (Cable)                                                                       | 220                  | TANTRANSCO         |           8   | Jul'18               |
|         6 | Tiruverkadu - Ambattur 3 rd Main road S/s (UG Cable)                                            | 220                  | TANTRANSCO         |           5   | Aug'17               |
|         7 | Vyasarpadi - Pulianthoppe (UG Cable)                                                            | 220                  | TANTRANSCO         |           1   | Aug'17               |
|         8 | Tondiarpet - Basin Bridge (UG Cable)                                                            | 220                  | TANTRANSCO         |           2   | Jul'17               |
|         9 | Rohini theatre take off structure to CMRL Koyambedu 230kV GIS S/s (230 kV UG cable )            | 220                  | TANTRANSCO         |           1   | Jun'17               |
|        10 | PH Road - Koyambedu (UG Cable)                                                                  | 220                  | TANTRANSCO         |           1.5 | May'17               |
|        11 | Mylapore - Tharamani (UG Cable)                                                                 | 220                  | TANTRANSCO         |          13   | Apr'17               |
|        12 | Harsh Vihar - Patparganj line (U/G cable link)                                                  | 220                  | DTL                |          15   | Feb'17               |
|        13 | HSR Layout - Nimhans S/S (UG Cable)                                                             | 220                  | KPTCL              |          11   | Feb'17               |
|        14 | Chandrayanagutta - 220KV Imlibun GIS (UG Cable)                                                 | 220                  | TSTRANSCO          |           5   | Feb'17               |
|        15 | Moulali - Osmania University                                                                    | 220                  | TSTRANSCO          |           4.5 | Dec'16               |
|        16 | LILO of Shapur Nagar - Gachilbowli feeder at GIS Erragadda SS                                   | 220                  | TSTRANSCO          |          10   | May'15               |
|        17 | Kadapperi - Guindy (UG Cable)                                                                   | 220                  | TANTRANSCO         |          14   | Apr'15               |
|        18 | Maharani Bagh- Gazipur (0.5kM cable on Maharani Bagh side & 8.5kM OH line)                      | 220                  | DTL                |          10   | Sep'14               |
|        19 | Terminating tower point - HSR Layout (Cable work)                                               | 220                  | KPTCL              |           3   | Jul'14               |
|        20 | Elephantgate - Mylapore (UG cable)                                                              | 220                  | TANTRANSCO         |          12   | Oct'13               |
|        21 | East Div Compound - Nimhans Station                                                             | 220                  | KPTCL              |           5   | May'12               |
|        22 | Malakaram - Gunrock                                                                             | 220                  | APTRANSCO          |          16   | Mar'12               |
|        23 | Maharani Bagh - Trauma Centre/AIIMS (UG cable)                                                  | 220                  | DTL                |          10   | Jan'12               |
|        24 | LILO of Mulund - Borivali at Bhandup                                                            | 220                  | MSETCL             |           2   | Dec'11               |
|        25 | East Div Comp. - HAl in Bangalore.                                                              | 220                  | KPTCL              |           8   | Nov'11               |
|        26 | 245 kV XLPE UG cable Asifnagar- Karwan                                                          | 220                  | Andhra Pradesh     |           3   | Apr'2007             |
|        27 | Guindy - R.A.Puram (UG Cable)                                                                   | 230                  | TANTRANSCO         |           8   | Jun'19               |
|        28 | Periapanachery - Porur (UG Cable)                                                               | 230                  | TANTRANSCO         |           7   | Nov'19               |

………….2.

|   29 | Nerul-Seawood TSS (U/G Cable Ckt -I)                                                                |   220 | MSETCL     |    1 | Mar'19          |
|------|-----------------------------------------------------------------------------------------------------|-------|------------|------|-----------------|
|   30 | Chandigarh S/s - Panchkula (PG) (incl. 10 KMs underground cable).                                   |   220 | PGCIL      | 10   | Under Execution |
|   31 | Zakhira - Devnagar D/C U/G                                                                          |   220 | DTL        |  5   | Under Execution |
|   32 | Dwarka-Budela (U/G) Cable                                                                           |   220 | DTL        |  5   | Under Execution |
|   33 | Dev Nagar - SubziMandi (U/G Cable)                                                                  |   220 | DTL        |  5   | Under Execution |
|   34 | IP-Park Street-Electric Lane (Cable)                                                                |   220 | DTL        |  5   | Under Execution |
|   35 | Kashmirigate - Timer Pur (U/G Cable)                                                                |   220 | DTL        |  5   | Under Execution |
|   36 | LILO of Electric Lane to Park Street at Dev Nagar (U/G Cable)                                       |   220 | DTL        |  5   | Under Execution |
|   37 | Maszid Moth - Tughlakabad (U/G) Cable                                                               |   220 | DTL        |  8   | Under Execution |
|   38 | Tughlakabad - R.K.Puram (U/G Cable)                                                                 |   220 | DTL        |  6   | Under Execution |
|   39 | LILO of both ckt. Kawas - Navsari (PG) line at Vesu S/s (2220kVu/g cable)                           |   220 | GETCO      |  2.5 | Under Execution |
|   40 | Thuthiyoor - Kaloor (UG Cable)                                                                      |   220 | KSEB       |  7   | Under Execution |
|   41 | LILO of Aaret (RINFRAT) - Borivalli (MSETCL) (Proposed cable ) at GoregaonFilmcity - 5 (UG Cable)   |   220 | MSETCL     |  2.5 | Under Execution |
|   42 | LILO of Aarey (RINFRAT) - Borivalli (RINFRAT) at GoregaonFilmcity - 5 (UG Cable)                    |   220 | MSETCL     |  2.5 | Under Execution |
|   43 | Tondiarpet point Puleanthope (Manali& NCTPS stage-II) (UG Cable)                                    |   400 | TANTRANSCO | 10.5 | Under Execution |
|   44 | Vellavedu - Guindy 400 kV S/S (U/G Cable)                                                           |   400 | TANTRANSCO | 20   | Under Execution |
|   45 | Basin Bridge - TNEB HQ (UG Cable)                                                                   |   230 | TANTRANSCO | 23   | Under Execution |
|   46 | CMRL Central 230 kV SS to Pulianthope 400 kV SS (UG Cable)                                          |   230 | TANTRANSCO |  3.4 | Under Execution |
|   47 | CMRL Central Jail to proposed Mambalam 230kV GIS SS (UG Cable)                                      |   230 | TANTRANSCO |  9   | Under Execution |
|   48 | LILO of Tonidapet - Mylapore at TNEB HQ (UG Cable)                                                  |   230 | TANTRANSCO |  1   | Under Execution |
|   49 | Basin Bride - Pulianthope (UG Cable)                                                                |   220 | TANTRANSCO |  2   | Under Execution |
|   50 | LILO of 220kV XLPE UG cable Chandrayangutta - Imlibun to the proposed Chanchalguda                  |   220 | TSTRANSCO  |  1   | Under Execution |
|   51 | Marripally common point- Hayatnagar S/S XLPE cable                                                  |   220 | TSTRANSCO  |  7   | Under Execution |
|   52 | 220kV Shivarampally SS- 132 kV Asifnagar SS 2nd circuit (220kV XLPE UG cable-3 km & OH line 0.5 km) |   220 | TSTRANSCO  |  3   | Under Execution |
|   53 | LILO of 220kV XLPE UG Cable Chandrayanagutta- Imlibun to the proposed 220/33 kV ChanchalgudaGIS SS  |   220 | TSTRANSCO  |  1   | Under Execution |
|   54 | GSS Basni (Jodhpur) - GSS NPH (U/C) Jodhpur                                                         |   220 | RVPNL      |  3   | Under Execution |

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