Explosion Proof Motor vs. Normal Motor

Explosion-proof motor Explosion-proof motor is a kind of motor that can be used in flammable and explosive factories, and does not generate electric sparks during operation. Explosion-proof motors are mainly used in coal mines, oil and gas, petrochemical and chemical industries. In addition, it is also widely used in textile, metallurgy, city gas, transportation, grain and oil processing, papermaking, medicine and other departments. As the main power equipment, explosion-proof motors are usually used to drive pumps, fans, compressors and other transmission machinery.

Do you know what are the differences between explosion proof motor and normal motor? Next, ATO will show the differences between them from three aspects.

Different application scenarios

• Explosion-proof motor is a kind of motor that can be used in flammable and explosive places, and does not generate electric sparks during operation. Explosion-proof motors are mainly used in coal mines, oil and gas, petrochemical and chemical industries.
• General motors can be used in electric motors and other general small mechanical equipment (including washing machines, electric fans, refrigerators, air conditioners, tape recorders, video recorders, DVD players, vacuum cleaners, cameras, hair dryers, electric shavers, etc.) Including various small machine tools, small machinery, medical equipment, electronic equipment, etc.) with motors.

Different explosion-proof performance

• The general motor lacks a flameproof casing. It may explode when it comes into contact with ignition sources such as sparks, arcs, dangerous high temperatures, etc. in the enclosure. When the explosive flame or hot gas is transmitted through the gap between the joints, it may ignite the surrounding explosive gas mixture.
• On the structure of the motor that does not produce arcs, sparks or dangerous high temperatures under normal operating conditions, some mechanical, electrical and thermal protection measures are taken to further avoid arcing, Risk of sparks or high temperatures, thus ensuring its explosion-proof safety.

Different structure

The whole series of explosion-proof motors adopts F-class insulation, and the temperature rise is assessed according to B-class. The noise limit is lower than the YB series, close to the class I noise of the YB series, and the vibration limit is comparable to the YB series. The protection level of the enclosure is increased to IP55. The whole series uses low-noise deep groove ball bearings, and the motor is equipped with an oil injection and discharge device when the center height of the base is above 180mm. There are two types of motor heat sinks: parallel horizontal distribution and radiation distribution, and parallel horizontal distribution is the main one.

There are many types of explosion-proof motors. In the environment of explosion-hazardous areas, to ensure safe production, the selection of explosion-proof motors is very important. When choosing an explosion-proof motor, you must understand its explosion-proof performance. Only when you choose a suitable explosion-proof motor can you ensure the safety of use and not waste resources.