Universal circuit breaker test conversion terminal box

Abstract

The invention discloses a universal circuit breaker test switching terminal box, and relates to the field of switching devices. Comprising a box body and a switching assembly, a protection plate is arranged on the front face of the box body, and a protection bin is formed in the front face of the box body; the switching assembly is arranged in the protection bin and comprises a switching block, one side of the front face of the switching block is provided with a signal access end, the signal access end comprises a three-core aviation plug base, the other side of the front face of the switching block is provided with a signal output end, the signal output end comprises six secondary aviation sockets, and the front face of the switching block is provided with six secondary aviation sockets. And a locking power switch is arranged on one side close to the three-core aviation plug base. According to the invention, through the design of each interface, a tester can test only by connecting the aviation plug of the circuit breaker to the test terminal box and does not need to open the circuit breaker panel to unlock the lock, so that the labor intensity of the tester is reduced, and the electric shock risk and the mechanical injury risk during the test are avoided.

Description

technical field [0001] The invention relates to the technical field of switching devices, in particular to a general-purpose circuit breaker test switching terminal box. Background technique [0002] At present, in the power system, there are various types of switch cabinets and circuit breakers in substations, and different types of secondary plugs have different pins for closing, opening, common breaking, and locking. As a result, it is necessary to determine the test terminal number during the test, which takes a long time , affecting the test efficiency. In addition, for a circuit breaker with a lock, it is difficult to release the lock coil, and the lock needs to be unlocked to work normally. The method of clamping the crocodile at the end is often used in the electrical test. Due to the mechanical vibration during the test, it is very easy to cause aviation Unsafe phenomena such as the plug slipping from the circuit breaker or the crocodile clip loosening occur, and t...

AI Technical Summary

Problems solved by technology

[0002] At present, in the power system, there are various types of switch cabinets and circuit breakers in substations, and different types of secondary plugs have different pins for closing, opening, common breaking, and locking. As a result, it is necessary to determine the test terminal number during the test, which takes a long time , affecting the test efficiency

In addition, for a circuit breaker with a lock, it is difficult to release the lock coil, and the lock needs to be unlocked to work normally. The method of clamping the crocodile at the end is often used in the electrical test. Due to the mechanical vibration during the test, it is very easy to cause aviation Unsafe phenomena such as the plug slipping from the circuit breaker or the crocodile clip loosening occur, and there is a risk of electric shock on the surface of the crocodile clip, which poses a very large safety hazard

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