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GMS-1 Door Lock with Indoor High Voltage Switcgear Equipment KYN28-12
At present, most of the substation, electrical distribution room building area is more abundant, for the convenience of engineering installation, maintenance and maintenance, often design the cabinet is not against the wall installation. The rear sealing plate is replaced with a two-side hinge door, which is convenient to maintain the front and back of the switchboard. The back door of the neutral cabinet is interlocked by the interlock device of the ground switch.
When the earthing switch is in the state of separation, the socket of the lock cover on the earthing switch operating shaft is 90 degrees different from the opening of the back door, thus locking the back door so that it can not be opened and preventing personnel from straying into the electric cable room. The back door can be opened safely only if the shaft of the ground switch rotates and the ground switch is deviated(90 °), and the socket on the lock is aligned with the opening of the back door. However, when the back door is opened, the grounding switch can still be operated directly to the switch without closing the back door, thus unlocking the circuit breaker, which can be closed because the back door is not closed.
|Rated voltage (KV)|
|Insulator(capacity)||insulating||Frequency withstand voltage 5 min (KV)||42||68||100|
|Frequency withstand voltage 1 min (V)||2000|
|Lighting impulse withstand voltage (KV)|
|Local discharge (pc)||≤10|
|Dispute bend (N)||≥10000|
Contact Person: Cheng