[Highly Recommended] Common problems and solutions of high-voltage vacuum circuit breakers

How to close the high-voltage vacuum circuit breaker? Reasons and solutions for the high-voltage vacuum circuit breaker not closing

High-voltage vacuum circuit breakers are characterized by oil-free equipment, and have the characteristics of long electrical life, long life, large breaking and insulating capacity, strong continuous breaking capacity, small size, light weight, frequent operation, fire prevention, and less operation and maintenance. Technician approval. Next, Zhiyue will tell you in detail how to close the high-voltage vacuum circuit breaker, the reasons why the high-voltage vacuum circuit breaker cannot be closed, and the treatment methods.

1. How to close the high voltage vacuum circuit breaker

The operating mechanism of the high-voltage vacuum circuit breaker has two words "open" and "close", "open" means opening; "close" means closing, just press the word "close" by hand.

Note: Before closing, check that the appearance of the circuit breaker is normal, and the vacuum bubble is free of "fog" (if there is fog, it means that the vacuum bubble cannot extinguish the arc, and it may cause an explosion after closing), and the circuit breaker has complete relays. Electrical protection.

2. Reasons why the high-voltage vacuum circuit breaker cannot be closed

(1)The transmission mechanism is stuck or the installation position is moved or adjusted improperly. The transmission mechanism should be overhauled, and the transmission mechanism should be installed and adjusted correctly;

(2)Poor contact of auxiliary switch contacts. Auxiliary switches should be inspected and repaired;

(3)The inner copper sleeve of the closing coil is not smooth or the iron core is not smooth, and the phenomenon of jamming occurs. The copper sleeve and iron core inside the closing coil should be ground;

(4)The closing circuit is broken or the fuse is blown or the contact is poor. Repair the disconnection of the closing circuit and replace the fuse;

(5)The iron core ejector is loose and the position changes. The iron core ejector should be overhauled and adjusted.