What is the meaning of the high - voltage high - voltage device in power system, which is mainly used to protect the equipment and equipment
High voltage means high voltage, similar to the above. Alternating current has active power and reactive power, the frequency response is the balance of active power, and the voltage response is reactive power balance
There has been greater than the power load power requirements, response to the power parameters is high frequency, this requires high cycle splitting device, tripping the corresponding circuit breaker, to remove the part of power grid connected or separated from the original into two or more power to lift the accident or the narrow scope of the accident to
The high cycle is high frequency, rated frequency of power system in China is 50Hz, the normal range was 49.8~50.2Hz, under normal circumstances, the power dispatching department through power planning, automatic control and other means to achieve power generation and load demand power balance. In the event of an accident, the balance can not be controlled by these means,
