Users in the use of mining explosion-proof motor, generally know that YB series is explosion-proof motor, mining explosion-proof motor series and YB2,

First, explosion-proof motor model - letter meaningAt present, there are many types of explosion-proof motors in China, and it is difficult for non-professionals to identify them. What do these letters and numbers represent?

We will answer your questions one by one!

Understanding the motor needs to start with the model of the motor, and it is necessary to determine at a glance what type of motor the motor is, what

Answer: According to the latest dust explosion-proof motor national standard number: Gb 12476.5-2013 Electrical equipment for combustible dust environment Part 5 shell protection type tD representative, dust explosion-proof motor grade: Ex tD A20 T130°C, Ex tD A21 T130°C, Ex tD A22 T130°C; Ex tD B20 T130°C, Ex tD B21 T130°C, Ex tD B22 T130°C for use in places with combustible dust and combustible floc.The new dust explosion-proof class: Extd B21 replaces the old dust explosion-proof class: DIP B21Note: At present, the latest dust explosion-proof motor explosion-proof grade is: ExtD B21 T135℃ IP65Question 2: The level of 20, 21, 22 zone is high, which explosion-proof level should be selected?

Main technical parameters of motor protector:(1) Working voltage: AC three-phase 300 ~ 460V, 50Hz.(2) Overvoltage protection: 380 ~ 460V adjustable, d

1, the stepper motor is used in low-speed occasions -- the speed per minute does not exceed 1000 RPM, (6666PPS at 0.9 degrees), it is best to use betw

The low insulation resistance of the explosive motor will affect the normal operation of the explosion-proof motor, resulting in the failure of the supporting equipment to operate normally, so what is the cause?

Sometimes there will be some failures in the operation of the explosion-proof motor, which requires maintenance and maintenance of the motor, it is necessary to disassemble the explosion-proof motor for detection and handling errors, so how should the motor be disassembled?

The basic circuit structure of the stepper motor driver is shown in the figure. The stepper motor does not move when connected directly to AC or DC po

Explosion-proof motors sometimes encounter some failures in use, so how to solve a variety of failures?Now let's look at how that works. 1, the fault phenomenon: explosion-proof motor can not start, and there is no sound reason: D fuse blown. @Starter smell off. 3 Power supply No power.2, fault phenomenon: explosion-proof motor can not start, there is a metaphorical soundReason :@ One phase of the power cord is broken, or a fuse is blown, or the motor has a phase winding is broken. The air gap between the stator and the rotor is abnormal, causing the stator and the rotor to collide. 3 Bearing damage. 4 The driving machine is stuck.What failures will the explosion-proof motor meet in use?

What are the models of energy-saving explosion-proof motorsExplosion-proof motor in coal mines, chemical plants, hospitals and other special requirements of the use of a lot of places, of course, explosion-proof motor general power is relatively large, the voltage is more than 380V. Therefore, explosion-proof motors generally consume a lot of power. If the general explosion-proof motors are replaced with energy-saving explosion-proof motors, it is a huge boost for our energy-saving and environmental protection industry.What are the types of energy-saving explosion-proof motors?YBX3 explosion-proof motorSo, what are the models of energy-saving explosion-proof motors?

With the development of economy, the motor consumes a lot of electric energy in our country every year. And now explosion-proof motor in the industria

In the factory, the factory environment will have some combustible dust, or some explosive dust. Therefore, the motor working in this environment need

Motor is the power driving equipment of various equipment, often used in chemical plants, coal mines, metallurgy, public utilities and other industrie

In many high-voltage explosion-proof motors, the use of plain bearings is more and more, mainly in the very important production departments and produ

The parameters of explosion-proof motors are generally: explosion-proof grade, protection grade, green grade, etc., explosion-proof grade refers to th

The last time talked about the rough machining of explosion-proof motor shaft, rough machining is the basis of the finish machining of explosion-proof