Hongshiyan Hydropower Station Electrical Main Wiring diagram
Hongshiyan Hydropower Station is located on the lower reaches of the main stream of the Nanpan River at the junction of Yiliang County and Chengjiang County, Yunnan Province. It is the second cascade hydropower station in the eight stage development mode of the first reservoir, with a straight-line distance of 58km from Kunming. The installed capacity of the power station is 4 × 11MW, the generator voltage is 10.5kV, and the outgoing line voltage is 110kV. There are two 110kV outgoing lines, one for Yatang substation and the other for standby. Main electrical connection: the connection between the generator and the transformer adopts expanded unit connection, the generator outlet is equipped with a circuit breaker, and the 110kV side adopts single bus connection. Auxiliary power is obtained from two generator voltage buses.