Power Engineer Journal
Year : 2019, Volume : 21, Issue : 2
First page : ( 19) Last page : ( 25)
Print ISSN : 2229-4465. Online ISSN : 0976-2396.

Laying and Environmental Aspects of Cable Transmission System of Pugalur North Trichur HVDC System-An Utility Perspective

Chakraborty P., Choudhary S.K., Bhattacharya S., Mukherjee B.B., Agarwal S., Kumar R.

Power Grid Corporation of India

Online published on 6 February, 2020.

Abstract

POWERGRID is executing a 2 x 1000 MW Voltage Source Converters (VSC) symmetrical monopole based HVDC system connecting Pugalur (Tamil Nadu) and North Trichur (Kerala). The symmetrical monopoles converter stations will be connected by a combination of HVDC OH line and 320 kV DC XLPE underground cables. The length of the OHL is approximately 143 km and the length of the XLPE cable is approximately 28 km. A transition station is planned to connect HVDC overhead line with HVDC underground cable. The Pugalur substation is 400 kV substation along with a ±800 kV, 6000 MW DC Inverter of Line Commutated Converter (LCC) based Raigarh-Pugalur HVDC link. The +/-320 kV, 2x1000 MW Voltage Source Converter (VSC) HVDC will be located in the same terminal station.

This paper will give an overview of the aspects in sizing cable considering the laying conditions and environmental aspects for the subject project.

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Keywords

DC XLPE cable transmission, HVDC, VSC.

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