Power transformer is a static electrical equipment, is used to a certain value of the AC voltage (current) becomes the same frequency as the other one or more different voltage values (current) device.
2013年9月28日星期六
Explosion-proof motors are generally used in explosive environments
Explosion-proof motor is mainly used in coal, oil and gas, petrochemical and chemical industries. In addition, textile, metallurgy, city gas, transportation, grain and oil processing, paper making, medicine and other departments have also been widely used. With the development of production, there is a risk of explosion is also increasing, so how to choose a suitable explosion-proof motor it? We introduce the following aspects. Explosion-proof Motor and General Motors difference:
Electric energy meter motors generally used in explosive situations; explosion-proof electrical junction box sealing better than ordinary motor; explosion-proof motor protection class minimum as I, but also some rather ordinary motor, it
electric meter containing flammable, explosive, corrosive gases and relatively clean place, and used to drive a variety of machinery and equipment without special requirements, such as machine tools, pumps, fans, compressors,
circuit breakers , etc., and therefore can tell from the appearance. Through the motor can be divided into categories according to their functions and controls the motor drive motor; divided into categories according to AC power and DC motors; motor speed and power from the power relationship between the frequency classification can be divided into synchronous motor and induction motor;
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