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YB2 Series Explosion Proof Asynchronous Motor (YB2-2)
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YB2 Series Explosion Proof Asynchronous Motor (YB2-2) is a highly demanded product. The demand is generated as a result of its high performance and quality assurance of the product. The YB2 Series Explosion Proof Asynchronous Motor (YB2-2) is supplied by us at a large scale all over the country. The YB2 Series Explosion Proof Asynchronous Motor (YB2-2) is efficient and produces good results. The YB2 Series Explosion Proof Asynchronous Motor (YB2-2) is used in factories involving explosives and explosive gases. Type : YB2 series explosion-proof asynchronous motors (No. of motor case : H63-355) Technical Information Rated voltage : 380V, 660V, 380/660V, 660/1140VRated frequency : 50HzInsulation class : Class FGrade of protection : IP55Way of cooling : IC411Installation mode : B3, B5, B35Explosion -proof mark : âExd Iâ or âExd II BT4â Features Of Structure The bearing with low vibration and noise, specialized for motor, is used as bearing of motor, double face sealing bearing is adopted for motor case No. 160 and below, and wave spring washer is mounted at the extension end of the bearing which can effectively restrain vibration and noise of the motor generated during the running period. Internal and external cover structure for motor case No.180 and above is adopted and retaining ring is used at the extension part of the bearing for axial fixing, which can effectively prevent rotor of the motor from axial motion. For safe and reliable operation of motor, the motor with case No. 180 and above can be equipped with oil injection device on the bearing structure as per the need of client, and the motor with case No. 250 and above, the position of bearing temperature monitoring sensing element is added. Scope Of Application Type YB2 series explosion-proof three-phase asynchronous motors are made into either explosion -proof âExdIâ or explosion -proofâExdIIBT4â in accordance with its application requirement, the explosion-proof performance complies with specification of GB3836.1-2000. Electrical equipment used at explosive gas environment part 1General requirement and GB3836.2-2000. Electrical equipment used at explosive gas environment part 2: Explosion-proof Type âdâ. Also used at the working place of underground non digging working face of mine and the place of factory containing explosive mixed gases.
