Dhalkebar, Nepal 400 kV GIS substation

Linxon has successfully commissioned the first 400 kV Gas Insulated Substation (GIS) at Dhalkebar, Nepal on behalf of the Nepal Electricity Authority (NEA). The operation of the Dhalkebar substation is an important milestone for Nepal’s hydropower sector and is the first 400 kV substation to enter operation in the country.

The substation was energized to full capacity, allowing the 400 kV Muzaffarpur (India) – Dhalkebar (Nepal) line to come into operation on November 11, 2020. During an inauguration ceremony on February 1, 2021, NEA has presented a certificate of commendation to Linxon India Private Ltd for the successful completion. The certificate was given by Sh.K.P. Sharma Oli, Hon’ble Prime Minister of Nepal.

Completion of this project will facilitate the transmission up to 1,000 megawatts of electricity through Nepal’s first ever high-voltage cross-border transmission line. The substation, being the major hub for power exchange between Nepal and India, will ease the process of importing power and help meet the increasing demand for electricity in Nepal whilst also facilitating the export of electricity to India when Nepal’s capacity generated is surplus to demand. The operation of the 400 kV Dhalkebar substation will further ease the reliable transmission of electricity within Nepal, along the country’s east-west axis.

The Linxon scope of supply included testing and commissioning of the high voltage equipment, (15 bays with two bus bars, three 315 MVA transformers and an 80 MVAR reactor) as well as the provision of all necessary civil works associated with the scope.