Explosion-proof motor is a kind of motor that can be used in flammable and explosive factory and it does not produce electric spark during operation.
(1) to meet the requirements of increased safety explosion-proof motors, a series of reliable measures to prevent sparks, arcs and dangerous high temperatures can be adopted, and they can be safely operated in 2 areas.
(2) the set of rotating rectifier brushless excitation, disc and static excitation cabinet, excitation control system is reliable; clockwise polarity slip excitation is accurate, no impact; excitation system out of step protection and reliability, and then the whole step ability; reasonable circuit design, no heat discharge resistance at work; a wide range of excitation regulator current.
(3) synchronizer, AC exciter and rotating rectifying disk coaxial. The rectifying disc is located between the main motor and the exciter or is placed outside the bearing seat.
(4) the protection grade of the shell is IP54.
(5) F grade insulation is used, and the temperature rise is evaluated by B level.
(6) set up a moisture-proof heater, fixed in the bottom of the motor cover, used for heating and moistureproof.
(7) the selection of high quality raw materials, electrical and mechanical calculation has a large margin, can meet the operating reliability and the temperature requirements of the motor.
The application: explosion-proof motor is mainly used in coal, petroleum, natural gas, petrochemical and chemical industry.
In addition, it is also widely used in textile, metallurgy, city gas, transportation, grain and oil processing, paper making, medicine and other departments. As the main power equipment, the explosion-proof motor is usually used for driving pumps, fans, compressors and other transmission machines.