Flameproof Three Phase Induction Motor for Hazardous Environment

Appropriate messures should be taken to preheat motors to keep the temperature on the motor enclosure above -20 by spice heaters and heating stator windings with low voltage supply for a certain time. This direct current generating is the winding shall not exceed the rated current on the name plate.

Direct starting under range -40 ~ +20 is prohibited.

Excertification applies to a fixed speed motor without frequency convertor.

Cooling method: IC 411

Insulation and temperature rise; class F. But the temp, rise of the stator windings is limited at 80K, i.e. treated as class B( resistance method). Permissible working temp. of bearing should not be over 95(thermometer method).

Driving method: flexible coupling or spur gear can be used for driving.

Method of starting: can be started on full voltage motors and can be started with y-starter or reactor.

Duty: Continuous ( S1)

Rated voltage:220V~690V

Rated frequency: 50Hz/60Hz

Altitude to be used lower than 1,000 meters above sea level.

Ambient temperature: to be altered with the change of seasons, but do not exceed -40 ~ +40.

Working conditions

Motor are to totally enclosed fan cooled lp 55. materials and procedures satisfy with environmental requirements. The motor is mechanically strong and corrosion resistant. Windings have a good reliability in class Finsulation, and class Binspection. PTC the thermistors or them-switches are available on request.

High reliability

Motors are provided with deep-groove abll bearings, the lifetime is extended. Motors in size80-132 are greased for life, and those in sizes 160-355 have a regreasing device as a standard.

Bearings with high load capacity

The M2JA range has been designed to minimize motors noise levels. By means of improving magnetic and electrical design, ventilator condition, and structure assembling size and technology.

Low noise

The rated voltage is 220V-690V, 50HZ and 60 Hz supplies applicable.

Dual frequency, wide voltage

Be up to the class 2 of CEMEP-EU standard and efficiency of 3 phase small & medium induction motors of Chinese standard GB 18613-2002.

High Efficiency

Technical Features:

M2JA series flameproof three-phose induction motors for hazardous environments, with Ex d type of protection, are specially designed for zones with T1-T5 group maximum surface temperature. The M2JA series motors are certified by CQST and LCIE( BV).

Summary

M2JA Series Flameproof Three Phase Induction Motor for Hazardous Environment

ABB

ABB Shanghai Factory Produced, high quality standard, cost-effective.

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