Operating procedures of the Switchgear

Power transmission steps

1 Install the rear sealing plate first, and then close the front door.

2 Operate the earthing switch spindle and open it.

3 Use the transfer truck (platform truck) to push the handcart (in the open state) into the cabinet (test position).

4 Insert the secondary plug into the static socket (the test position indicator is on), and close the front middle door.

5 Use the handle to push the handcart from the test position (opening state) to the working position (the working position indicator is on and the test position indicator is off).

6 Close the circuit breaker trolley.

Power failure (overhaul) operation steps

1 Open the circuit breaker trolley.

2 Use the handle to withdraw the handcart from the working position (opening state) to the test position.

3 (The working position indicator is off and the test position indicator is on).

4 Open the front middle door.

5 Pull the secondary plug out of the static socket (the test position indicator is off).

6 Use the transfer cart to pull the handcart (in the open state) out of the cabinet.

7 Operate the earthing switch spindle and close it.

8 Open the rear sealing plate and the front lower door.

Note: The lower arrester handcart and the middle (lower) PT handcart can be directly pulled out of the cabinet when the bus is running.