Four states of electrical equipment

Four states of electrical equipment: operation, hot standby, cold standby, overhaul four states. I want to use popular language, so that we can understand the way to teach you, I hope this article can help you.

One state: running state. The running state refers to [the disconnecting switch and circuit breaker of the electrical equipment are in the closing state, and the grounding switch is in the opening state]. At this time, the power supply has been sent to the driven electrical equipment through the disconnecting switch and circuit breaker, and the driven electrical equipment is already working.

The second state: hot standby state refers to that [the disconnecting switch of electrical equipment is in the closing state, the circuit breaker is in the opening state, and the tunnel gate is in the opening state] the electrical equipment has the power supply condition and the starting condition. Once the circuit breaker is closed, the electrical equipment can change to the running state. When the electrical equipment is in the hot standby state, there is the possibility of call operation at any time, so we should always pay attention to safety, beware of injury.

The third state: cold standby state refers to [the isolating switch of electrical equipment is in the opening state, the circuit breaker is in the opening state, and the tunnel gate is in the opening state]. At this time, the electrical circuit can carry out insulation inspection and testing after handling relevant tickets.

The fourth state: maintenance state refers to [the isolation switch of electrical equipment is in the opening state, the circuit breaker is in the opening state, and the tunnel gate is in the closing state]. At this time, the electrical circuit can carry out the corresponding inspection and maintenance work after handling the relevant tickets.

I do not know whether you have understood the four states of electrical equipment after my description above. In fact, the four states are simply understood as: the state conversion of the three devices [disconnecting switch, circuit breaker and grounding switch].