Nepal’s 220 kV transmission line to come online this week

Nepal: The 220 kV double circuit Trishuli-Kathmandu transmission line, Nepal’s first partially underground power line, is all set to come online in May.

Construction crews have finished installing the 45 km power line and are ready to test run it as per the electricity authority’s plan to evacuate 60 MW of power to Kathmandu from the Trishuli 3A hydro plant.

“Although the power lines are ready to relay power, minor works related to gantry structures at the Trishuli 3A power house are yet to be completed,” said Phadindra Raj Joshi, chief of the project. “The power plant contractor is working to finish the structure within two days and after that we will be able to bring the transmission line online.”

Gantry structures are used to connect the nearest tower near a substation to electrical equipment in the substation.

The Trishuli-Kathmandu power line is expected to evacuate 30 MW from the Upper Trishuli-3A plant by May 15 and another 30 MW from June.

Power will be evacuated from Trishuli 3A powerhouse to Trishuli 3B hub through a 132 kV line and then relayed to Matatirtha substation through the 220 kV double circuit line.

Both the transmission line and Trishuli 3A were built with concessional loan amounting to $114.7 M from China’s Exim bank.

Source: Kathmandu Post