Flexible connection mutual inductance device for low-voltage circuit breaker

Abstract

The invention relates to a flexible connection mutual inductance device for a low-voltage circuit breaker. The flexible connection mutual inductance device for the low-voltage circuit breaker comprises a socket, wherein a sleeve cap is connected with one end of the socket through a coil framework. The flexible connection mutual inductance device for the low-voltage circuit breaker is characterized in that a connection hole is formed in the other end of the socket, and a limit assembly is distributed in the connection hole. Meanwhile, a shielding assembly is distributed inside the socket, the coil framework comprises an internal conductor, and an external insulation layer is distributed on the periphery of the internal conductor. Due to the shielding assembly, flux leakage can be prevented to the maximum extent. Meanwhile, measurement errors of the low-voltage circuit breaker are reduced and are protected against influence from installation positions of mutual inductors and flexible connection appearance changes, protection precision and reliability of the low-voltage circuit breaker are improved, and power grid accidents are avoided.

Description

technical field [0001] The invention relates to a mutual induction device, in particular to a soft connection mutual induction device for a low-voltage circuit breaker. Background technique [0002] Transformer, also known as instrument transformer, is a general term for current transformer and voltage transformer. It can change high voltage into low voltage and high current into small current for measurement or protection system. Its function is mainly to transform high voltage or high current into standard low voltage (100V or 200mV, etc.) Standardization and miniaturization. At the same time, the transformer can also be used to isolate the high-voltage system to ensure the safety of people and equipment. [0003] At the same time, for the soft connection transformer, it is often necessary to separate and connect the soft connection part during use, so that the joint part of the soft connection transformer cannot be wound with enameled wire, resulting in magnetic flux l...

AI Technical Summary

Problems solved by technology

[0003] At the same time, for the soft connection transformer, it is often necessary to separate and connect the soft connection part during use, so that the joint part of the soft connection transformer cannot be wound with enameled wire, resulting in magnetic flux leakage at the joint part, which affects the overall use effect

Images