Energy storage technology mainly refers to the storage of electrical energy. The stored energy can be used as emergency energy, or it can be used to store energy when the grid load is low, and output energy when the grid load is high, for peak shaving and valley filling, to mitigate grid fluctuations. On the energy storage equipment system, the high-voltage main DC relay is mainly used in the DC side, the DC switching of the battery and inverter. The general voltage range of 750-1200VDC, the current range of 100-400ADC. energy storage is mainly used in the field of photovoltaic and wind more widely.
Relays for photovoltaic
In photovoltaic power generation systems, high-voltage DC relays are mainly used at the DC side, and in batteries and inverters mainly for DC load switching. The general voltage range is 400-1000VDC and the current range is 40-200ADC.
In the use of relays for photovoltaic, Hecheng Electric CO. has independently developed high-voltage DC relays such as HCF 40/200,etc., which have been put into production and use.
Relays for Wind Energy
In the wind turbine system, the high voltage DC relay is mainly used in the DC output of the generator and the input and output of the energy storage battery, with a general voltage of 700-1200VDC and a current range of 200-400ADC.
In wind energy relays, Hecheng electric Co. has independently developed high-voltage DC relays HCF 200/300/400, etc., which have been put into production and use.