-
What is the Residual Current Circuit Breaker (RCCB)
The use of electricity has brought a lot of convenience to modern people’s lives and work. However, electricity can easily leak, causing short circuits, burnouts, etc., leading to fires, electric shocks, and great harm to people. economic losses and life threats. Thus, Residual Current Cir...Read More -
What do the parameters on MCB represent?
Miniature circuit breakers (MCB) are mainly used to protect circuits from short circuits and overloads, and can also be used in power distribution systems for lighting or motors. It is characterized by beautiful and compact appearance, light weight, excellent and reliable performance, high breaki...Read More -
The difference between Surge Protective Device and Overvoltage Protector
Surge protective device and overvoltage protectors are two commonly used electrical equipment protection devices. They can limit or discharge transient overvoltage in the power system and prevent electrical equipment from being damaged by lightning or other causes. However, their working princip...Read More -
What are NO and NC on the AC contactor ?
AC contactor is a very commonly used electrical component in industrial control. Among the contacts of the AC contactor, in addition to the main contacts (both normally open contacts), there are also auxiliary contacts. There are normally open and normally closed auxiliary contacts. There is a ma...Read More -
What are the faults of air circuit breakers(ACB)?
1. The air circuit breaker tripped and failed to reclose: First, determine whether the air circuit breaker tripped non-accidentally. Non-accidental tripping means that it tripped without short circuit or overload fault. There are many reasons why the air circuit breaker cannot close. First, it i...Read More -
Knowledge related to dual power automatic transfer switch
Automatic Transfer Switch, referred to as ATS, is a key power switching device used in uninterruptible power supply systems. Its main function is to automatically switch the load to the backup power supply when the main power supply fails to ensure continuous power supply for critical loads. The...Read More -
What material are the contacts of MCCB made of?
The contact material of molded case circuit breaker is mainly silver alloy, which has good electrical conductivity, wear resistance and thermal stability. Silver alloy contacts are often used to ensure the normal operation of circuit breakers and extend their service life. Other commonly used co...Read More -
How to choose a miniature circuit breaker
1. The number of poles for a circuit breaker should be determined based on the number of lines that need protection. For instance, in a typical residential single-phase electrical system, which consists of one neutral wire and one live wire forming a circuit, a two-pole breaker is chosen if both...Read More -
Why do distribution boxes need to be equipped with a surge protective device?
In today’s technologically advanced world, the need for surge protective device (SPD) in distribution boxes cannot be underestimated. Surge protectors play a vital role in protecting electrical and electronic equipment from lightning strikes and overvoltage damage. The high voltage and cur...Read More -
Why does the AC contactor make a buzzing sound?
When the AC contactor is working, it will connect or disconnect the circuit, so arc and corona discharge phenomena will be generated on the contacts, resulting in buzzing noise. When the contacts on the AC contactor connect the circuit, the potential difference due to the resistance will cause a...Read More -
Is the air circuit breaker manual or electric?
The air circuit breaker (ACB) is a relatively complex switch that plays a vital role in electrical systems. A common question that comes up is whether the air circuit breaker is manual or electric. In fact, the answer is not black or white, but a combination of both. The function of the air circu...Read More -
Notes on different circuit locations of CB-level ATS
Automatic Transfer Switches (ATS) play a vital role in ensuring seamless and reliable power transmission during critical situations. Among the different types of ATS on the market, Class CB ATS stands out for its ability to connect, carry and break short-circuit currents while being equipped wit...Read More
-
Whatsapp
whatsapp
8618066376807
-
Wechat
Wechat
mutaielectric
-
Top