Difference between power distribution box and lighting distribution box
The distribution box is divided into power distribution box and lighting distribution box, which are the last level equi ...
What fire prevention preparations should be made for the electric box
The electric box is a complete set of devices for centralized installation of switches, instruments and other equipment. ...
Analyze the cause of fire caused by aging of meter box
The electric meter box is now an important power transmission equipment for every household. The electricity of every ho ...
Different technology of spray painting and plastic spraying for distribution box
1. Different working principles Baking paint is a kind of industrial paint. It is divided into water-based metal baking ...
Selection of leakage circuit breaker
The leakage circuit breaker has two functions, one is the function of circuit breaker, the other is the function of leak ...
How many types of circuit breakers?
1. According to the operation mode, there are electric operation, energy storage operation and manual operation. 2. Acc ...
Why use leakage protector?
Leakage protector, also known as leakage protection switch, is a new type of electrical safety device. Its main purpose ...
![The difference between [electromagnetic] and [electronic] leakage circuit breakers](https://y24.hongcdn.com/uploads/1m/2006/use-of-circuit-breaker.jpg)
The difference between [electromagnetic] and [electronic] leakage circuit breakers
The so-called leakage circuit breakers are divided into two types: electronic leakage circuit breakers and pure electrom ...
Why is the function of molded case circuit breaker (MCCB) so powerful?
The molded case circuit breaker (MCCB) has three-stage protection function. The circuit breaker of class B has full sele ...
Selection and application of electronic earth leakage circuit breaker (ELCB)
Electronic earth leakage circuit breaker is mainly composed of zero sequence current transformer, electronic control lea ...
What factors should be considered when selecting low voltage circuit breakers?
According to its structure, the low-voltage circuit breaker can be divided into ACB, MCCB and MCB. The overload protecti ...
Distinguishing knowledge of circuit breaker, contactor and relay in power system
In the power system, circuit breakers, contactors and relays seem to be familiar guys, but many of them are not clear ab ...
How does protect personal safety?
In this age of electricity everywhere, there are few safety measures to use electricity. is one of them, and it is also ...
Specific advantages of excellent manufacturers of AC contactor
With the popularization of electrical equipment, people have a wider understanding of electrical equipment. With the dev ...
Test method for judging the quality of AC contactor
AC contactor is a common control device in the electrical system, which has the function of frequently connecting and cu ...
Analysis of the failure cause of the AC contactor when it makes up
When the AC contactor makes up, it is accompanied by vibration and noise, which is one of the common faults of the AC c ...
Causes of contact overheating of AC contactor
In the use of AC contactor, it will be found that the main contact of the product is overheated. In view of this abnorma ...
Difference between different types of contactors
Many people don't know much about the difference between AC contactor and DC contactor. Maybe they just think that the ...
Structure and principle of AC contactor
AC contactor is used to switch on and off frequently. At the same time, it also has undervoltage and overvoltage protec ...
Maintenance of contactor
The maintenance methods that AC contactor manufacturers should tell you are divided into use maintenance and finished u ...
Causes of AC contactor coil failure
AC contactor is a kind of electrical switch used to automatically turn on or off the high current circuit. It can turn ...
Causes of burning loss of contact of AC contactor
In the use of AC contactors, one of the problems that users always pay attention to is that the contact burns too fast. ...
Basic selection principle of AC contactor
The selection of AC contactor shall be based on the actual working conditions and meet the requirements of controlled e ...
Common faults, diagnosis and treatment of AC contactor
I. armature and static core cannot be reliably closed (1) the power supply voltage is too low. In this case, the redu ...
