Tag: electric motors

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.

When it comes to motors, the first thing that comes to mind is electric motors. But if you're looking for a motor with torque and energy efficiency, check out an air motor. Choosing the right motor type depends on your application and surrounding environment. Electric motors are useful for small items; air motors are great for factories, manufacturing facilities, etc. This article introduces something differernt between air motor and elecrical motor.

While the motor brings more convenience to production and life, its energy consumption cannot be ignored. In the face of the rising cost of purchasing mechanical products and the gradual increase in energy consumption, high-voltage motor maintenance manufacturers will recommend choosing energy-saving motors, or transforming the original motor, these are good choices for enterprises to save costs.

Different motors of the same rated horsepower may have different starting currents, torque curves, speeds and other variables. NEMA (National Electrical Manufacturers Association) has A, B, C, D four different designs for electric motors.
NEMA Design B: Is the most common design of electrical motors and ATO single phase AC induction motors are of NEMA design B. Its starting torque is similar to that of design A, but sometimes still lower, providing a relatively low starting current. However, in industrial application, it locks locked rotor and still allows starting load. The rotating-speed difference is lower than or equivalent to 5%. The electric efficiency and full-load power factor are relatively high. The typical applications include pump, fan and machine tool.