Causes and Solutions of Leakage Switch Tripping Failures

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Working principle of leakage switchDuring normal operation, there is no leakage current in the circuit except the operating current through the leakage protector. At this time, the currents flowing through the zero-sequence transformer (detection transformer) are equal in magnitude and opposite in d

What Should I Do if the Transformer Core Fails?

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The windings and iron core of the transformer are the main components that transmit and transform electromagnetic energy. Ensuring their reliable operation is a matter of concern. Statistics show that failures caused by iron core problems account for the third place in total transformer accidents. T

Analysis of Lightning Protection and Grounding Technology of Electric Power Distribution System

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Knowledge point: Lightning protection power distribution deviceIn the construction of power distribution network, lightning protection and grounding protection is an important link. The power distribution network has been exposed to the natural environment for a long time, and its own protection abi

Causes and Preventive Measures for Burnt Circuit Breaker Opening and Closing Coils

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The circuit breaker is a type of load switch with short-circuit and overload protection functions. The short-circuit protection function is realized by an electromagnetic coil. Because of its complete protection functions, easy maintenance and use, it is widely used in power systems. This article in

DC Power Supply Quality Inspection Methods and Main Functions

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The technical indicators of DC power supply can be divided into two categories. One is the characteristic indicators, which usually include the voltage allowed to be transmitted, the voltage and current output and the voltage adjustment range. Today I will show you the DC power supply quality detect