Overview of 60 MW photovoltaic power generation project of new taimen, Aichen, Huludao

This project is located in Baotun village, Lianshan District, Huludao City, Liaoning Province. The main transformer capacity of the booster station is 63 MVA. A new 66kV transmission line will be built and sent to the 66kV side of 220kV Yangzhangzi substation. Gj-300 conductor will be used as the new line conductor, with a total length of 23.5km. 24 core OPGW optical cable will be used as the ground wire.

Main scale:

1. Primary part: the primary part of the step-up station is equipped with a sz11-63000 ／ 66 transformer, and the 66kV side is connected by line transformer unit. Two sets of gw5-72.5dw ／ 1250A type disconnectors, one set of lw9-72.5 type SF6 circuit breaker, three sets of lw25a-66 type current transformers, three sets of tyd66 ／ 3-0.02fh type voltage transformers are equipped at 66kV side,

Three yh5w-9 ／ 250 type arresters; six outgoing lines at 35kV side are connected with 35kV line in photovoltaic area through 35kV switchgear in high voltage room.

2. Secondary part: ① protection system: the booster station is equipped with a set of independent anti island protection device to cooperate with the system side protection. The low-voltage side of the main transformer in the booster station is equipped with small resistance grounding device, and each collecting line and grounding transformer are equipped with zero sequence protection.

The booster station was successfully generated on April 28, 2018 after the final acceptance by the provincial quality supervision station, provincial dispatching, Electric Power Research Institute and relevant departments of the Municipal Electric Power Bureau. Then the operation and maintenance personnel appointed by the company will be present to take up the operation and maintenance responsibilities.