Flame Proof Motors
Flame Proof Motors Details
NBE Motors standard three-phase Induction Motors have been in the market for the last twenty-five years satisfying the needs of various engineering & other Industries. It has now started manufacturing flame-proof AC Motors to serve the industries. NBE Motors standard three-phase Induction Motors have been in the market for the last twenty-five years satisfying the needs […]
- “N B E Motors Pvt. Ltd.” Flame Proof AC Motors have been tested & certified by Central Mining Research Station, Dhanbad for Group -II A,II B Locations.
- The basic features of Flame Proof motors are developed and manufactured by our company and are mainly intended for use in Hazardous environments in the Chemical & Petrochemical industries.
- The Flame Proof enclosures consist of sturdy cast iron parts that are mechanically robust and very liberally designed. The cast iron enclosure of the motors is built to withstand any internal explosion.
- The gaps of the joint and where the shaft passes through the flame are so dimensioned as to prevent transmission of igniting flame to the surrounding atmosphere. The motors are so designed that the flame temperature will remain below the ignition temperature of the gas-air mixture involved.
- The series motors, are of remarkable features such as compact construction, lightweight, attractive, appearance, safe & reliable operation life, excellent performance and easy maintenance.
- For the series motors, the output rating and mounting dimensions conform to the specifications of IEC Standard. This series motor are designed and manufacturing into Flame Proof type and the Flame Proof property conforms to Indian Standards IS : 2148 and is also in line with the requirements of Flame Proof Enclosure.
- These motors can be manufactured for special environments, such as outdoor location(IP55 Type) indoor tropical humidity, outdoor tropical humidity, indoor tropical arid , outdoor tropical arid, indoor tropical , outdoor tropical and outdoor middle class chemical corrosion locations.
- The flameproof construction for Exd,
- The degree of protection is IP 55 for motor main enclosures.
- The stator winding are of Class F insulation and ensures a large margin of safety in temperature rise and long service life.
- A cylindrical shaft extension is equipped with motors, which can be driven by coupling or spur gearing.
- The stator winding are wound with polyester enamel round wire of high strength and then treated with the progress of vacuum-pressure impregnation (VPI) to make them solid. Therefore , The winding insulation is excellent in electrical and mechanical properties, moisture resistance and thermal stability.
- The rotors are of cast- aluminum and dynamically balanced to make the motor operate smoothly with small vibrations m and low noise.
- The stator and rotor cores are laminated with high-class electrical steel sheets with high permeability and low loss, thus making the motors possess low loss and high efficiency.
- The motors are fitted with low-vibration and low-noise bearings. The bearings are with both side seals. The drive end bearings are pre-loaded with special pre-loading wave washers to restrain efficiently the vibration and noise produced during the working condition.
- Fans are made of cast iron and have low Wind age loss.
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