Industry News
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Detailed introduction of contactor
As an electromagnetic relay commonly used in electrical control systems, contactors have many specifications. Generally, the contactor controls the closing and breaking of the main contact by controlling the energization and de-energization of its coil. We will find that the voltage specification...Read more -
Common faults of leakage circuit breakers
Put into trip 1) The three-phase power line, including the neutral line, does not pass through the zero sequence current transformer in the same direction, just correct the wiring. 2) There is an electrical connection between the circuit with the leakage circuit breaker installed and the circuit ...Read more -
The difference between circuit breaker and MCB
The circuit breaker uses air as a medium for arc extinguishing, so it is also called an air-type low-voltage circuit breaker. Because of its convenient operation and high safety electronic products worldwide, most of the power distribution in the building at home is air switch. The circuit break...Read more -
What are the levels of current transformers
The accurate level of the current transformer is the measurement error (zhi accuracy) dao of du, generally 0.2, inner 0.5, 1.0, 0.2S, 0.5S, 5P, 10P, etc. S is a special capacitor current transformer, which requires high enough accuracy within the load range of 1%-120%. Generally, the error of me...Read more -
The design points of miniature circuit breaker
⑴ The coordination of circuit breaker and circuit breaker should consider the instantaneous release action value of the upper-level circuit breaker, which should be greater than the maximum expected short-circuit current at the outlet end of the lower-level circuit breaker. If the short-circuit ...Read more -
What is a fully insulated inflatable cabinet?
The fully insulated is to seal the 10KV primary charged high-voltage components such as busbars, circuit breakers, isolating switches, transformers, etc. in a lower pressure (0.1～0.5mpa) sf6 gas, using the chemical of inert gas when sulfur hexafluoride gas is used. Nature, strong stability, str...Read more -
Insulation accident of low voltage circuit breaker
Low-voltage circuit breaker insulation accidents can be divided into internal insulation accidents and external insulation accidents. The harm caused by internal insulation accidents is usually greater than that of external insulation. 1. Internal insulation accident Internal insulation accident...Read more -
Miniature Circuit Breaker Supplier
Company Profile Founded in 1987, Changan Group Co.,Ltd is a power supplier and exporter of industrial electrical equipment. We are committed to improving the quality of life and the environment through a professional R&D team, advanced management and effective services. Tel: 0086-577-62763666...Read more -
Modular Contactor EKMF Supplier
Company Profile Founded in 1987, Changan Group Co.,Ltd is a power supplier and exporter of industrial electrical equipment. We are committed to improving the quality of life and the environment through a professional R&D team, advanced management and effective services. Passed ISO9001 / ISO14...Read more -
Modular Signal Lamp Manufacturer
Company Profile Founded in 1987, Changan Group Co.,Ltd is a power supplier and exporter of industrial electrical equipment. We are committed to improving the quality of life and the environment through a professional R&D team, advanced management and effective services. Tel: 0086-577-62763666...Read more
