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(一) 机电设计电站原设计为4台5万kW水轮发电机组,为适应电力系统调峰负荷增长的需要,在建设过程中又增装2台5万kW机组,年发电量由4.87亿kW·h增加到4.9亿kW·h,年设备利用小时数降至1633h,电站送电华东电网,为系统调峰电站之一,可承担系统调峰容量30万kW。1.电气主结线电站出线为两级电压,220kV出线两回经丽水送
(1) Electromechanical Design The original design of the power station is 4 sets of 50000 kW hydroelectric generator sets. In order to meet the need of increasing the peak load of the power system, two 50,000 kW units are installed in the process of construction with an annual generating capacity of 487 million kW · h to 490 million kW · h. The annual utilization hours of equipment are reduced to 1633h. The power station sends electricity to East China Power Grid, which is one of the system peaking power stations and can take up the peak peaking capacity of 300,000 kW. 1. Electrical main line outlet for the two voltage, 220kV outlet by Lishui two back