This kind of high-voltage power supply and distribution cabinet with two incoming cabinets is what is often called the "dual-wire power supply" method in standard terminology, that is, two incoming cabinets can be used, one for backup, and the other for backup. Can be run in batches. Secondly, this high-voltage cabinet operates in a "one-use, one-standby" mode of operation.
The power supply process is as follows:
After the 1# incoming line cabinet is powered on, the I-line outlet cabinet is directly connected to the 1# incoming line cabinet, and the second-level outlet cabinet passes through the female connector cabinet And the female connector is hung on the #1 incoming line cabinet.
If the 1# main incoming line is out of power, the power transmission of the 2# backup incoming line cabinet can be completed through the following three operations:
1. Turn on the vacuum of the 1# incoming line cabinet Circuit breaker: Turn the knob on the lower right corner of the upper sub-cabinet to the left. Disconnection is complete when the circuit breaker opens.
2. Use a rocker to rock the circuit breaker from the working position to the test position, and remove all parts of the first and second parts of the socket cabinet circuit breaker.
3. Close the circuit breaker of No. 2 incoming line cabinet: turn the knob to the right. Check the measuring cabinet and check whether the voltage is normal.
Extended information:
Principle of high-voltage switch cabinet
1. After the vacuum circuit breaker trolley in the high-voltage switch cabinet is closed at the test position, the trolley circuit breaker Unable to enter work location. (Prevent closing with load).
2. When the grounding knife in the high-voltage switch cabinet is closed, the trolley circuit breaker cannot be closed. (Prevent closing with ground wire).
3. When the vacuum circuit breaker in the high-voltage switch cabinet is closing, the back door of the cabinet is locked with the machine on the grounding knife. (To prevent accidentally entering the electrified interval).