Generral Descriptions
Series NEH NEMA D motors are totally enclosed self-fan-cooled ones designed and manufactured in accordance with the latest NEMA standards , suitable for Beam Pumping Units application with special high slip (5 to 13%),very high starting torque and very soft mechanical features. Because of these features,the equipment is able to be started easily .Motor speed can drop to protect the equipment from damaging when flucating loads are encountered .In addition the motors are designed for a large margin of safety in temperature rise, durability, quiet operation ,reduced vibration ,advanced construction ,high safety and reliability in service, convenience for application and maintenance and etc.
Rating
1,kind of motor :Squirrel-cage Induction Motor, NEMA D Design.
2,Design Standard: NEMA MG1
3,Frame No:213T~449T
4,Output Range:2~208HP.
5,Synchronous Speed:1200RPM(6 Poles 60Hz),1000RPM(6 Poles 50Hz),900RPM(8 Poles 60H),750RPM(8 Poles 50Hz).
6,Rated frequency:60Hz(50Hz is availiable on request)
7,Rated voltage:460V(415V is available on request) 380V,50Hz is also available
8,Service Factor:1.15 or 1.0.
9,Protection Enclosure :TEFC ,IP55.
10,Cooling Method:Surface Cooling (IC411)
11,Mounting arrangement and the relative position of conduit box are follows:
2013 High quality Nema D Standard Electric Motor