Explosion proofMotorIt is a kind of motor that can be used in flammable and explosive places without sparks. Today we will talk about the parameters and performance characteristics of mine explosion-proof motors:
1,Explosion-proof motorspower
Explosion-proof motor power = torque × motor control input signal revolution × use management efficiency / 9549
The power formula is p tn / 9549
When choosing a motor, first determine the speed of the motor you want, and then according to our above formula:
The (output) of the motor unit with P rated power is kilowatts (KW).Explosion-proof motor is a kind of motor that can be used in flammable and explosive plants 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 sectors such as textiles, metallurgy, city gas, transportation, grain and oil processing, papermaking, and medicine.Frequency conversion speed motorA general term for motors driven by frequency converters.In fact, the motor designed for the frequency converter is a special frequency conversion motor. The motor can achieve different speeds and torques under the drive of the frequency converter to adapt to the changes in the demand of the load.The motor is an electromagnetic device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction. n is the rated speed, which is (rev/min) in revolutions per minute, the rated speed of a 1440P general motor at 4 revolutions, the 2P of the motor is 2900 RPM, and the speed of the 6P motor is 960. η is the efficiency of the motor, and is usually 0.8.
2. Voltage level
Mine explosion-proof motor, line voltage 660v, phase voltage 380v, line voltage 1140, phase voltage 660.
Different voltage levels, different connections, corresponding to different winding voltages, delta connection star connection U = U * 1.732
3. Rated speed
Rated working speed: refers to the speed of the motor under a rated output power.It is represented by the symbol "n", and the unit is "revolutions/minute".
4. Explosion-proof grade
Mine gas classification: I represent gas: methane Minimum detonation spark energy: 0.280mJ
The factory gas outside the mine is classified: ⅡA Representative and gas: Propane minimum problem, sparks generated by explosion, energy: 0.180mJ
