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Special design: frequency inverter


Variable-speed drives with frequency converters are widely used today in many industries. Increasingly, explosion-proof three-phase motors with type of protection “flameproof enclosure” are designed to use with variable-speed drives with static frequency converters in hazardous areas.

For customers like Chemical or Petrochemical plants with harsh environmental conditions and limited maintenance facility and needs to operate at constant readiness, these drives are preferred due to the simple and maintenance-free motors.

ATB motors are characterized by the following advantages:

Possibility of saving energy by adapting to the actual energy requirements
Mechanical controls equipments such as values and damper can be eliminated
Maintenance intervals are extended because of reduced wear
Integration into modern process control technology

The blanket certificate of conformity allows the operation of static frequency converters, without further authorization or certificate of conformity by PTB. Due to the requirements in the chemical and petrochemical industries, the explosion-proof three-phase motors in protection type “Flameproof enclosure” are provided with quality features, like those defined in the VIK-recommendations. These quality features are also an advantage for operation on frequency converters.

ATB offers explosion-proof three-phase motors that meet special quality characteristics. This is achieved by maintaining compliance and consistently improving of the quality standard.



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