NEMA standard motors CC113B (§« ® C€

■ NEMA Standard Motor ■ High/medium voltage motor (frame size 355-1 000) ■ Direct current D.C motor (frame size 1 60-900) * Synchronous motor . Asynchronous 3PH Motor (frame size 71-450) ■ Flame Proof / Explosion Proof

■ UL, ATEX, lECex, SA, TUV, INTEX

General Descriptions 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 1 3%), 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 fluctuating loads are encountered. In addition the motors are designed for a large margin of safety in temperature rise, durability, quiet operation, reduced vibration, advanced...

Standard Shaft Extension Number Code Related to 2F Dimension Shaft Center Height Code Type Code (NEMA Standard High Slip Series) The stator core is laminated with high quality electrical steel with high permeability and low losses allowing the motors to operate more efficiently. The stator windings utilize Class F insulation (Class H insulation is available on request) with polyimide enamel round wire and VPI treated providing strong mechanical support, superior electrical insulation, misture and contamination resistance, and uniform heat dissipation. Thermistors(PTC) are embedded in windings...

The conduit box is on the central libe of the enclosure.lt can be F1/F2 convertible. The conduit box is made of cast iron and the opening utilizes Standard NPT threads (Metric threads and holes are available on request). There are grounding bolts and a connection diagram inside the conduit box. Motor main leads and thermistor leads are loose keeping in conduit box (Therminal blocks are available on request). The fan is made of plastic or cast iron to different applications. The fan cover is made of steel sheet or cast iron depending on different operating conditions. A sunshade is recommended...

NEPM Premium Efficiency MotorGeneral Descriptions NEPM Premium efficiency three phase phaseinduction motors are totally enclosed fan cooled squirrel cage motors that are manufactured with new meterialand technology. Duty: Continuous(SI). Rated frequency: 60Hz(50Hz is available on request). Rated voltage: 460V(380V is available on request). Service Factor: 1.15 or 1.0. Protection Enclosure: TEFC, IP55. Cooling Method: Surface Cooling(IC411). ■ Kind of motor: Squirrel-cage Induction Motor, NEMA B Design. ■ Design Standard: NEMA MG1. ■ Ambient temperature: 40 Cmax NEPM Premium efficiency motors...

The stator core is laminated with high quality electrical steel with high permeability and low losses allowing the motors to operate more efficiently. The stator windings utilize Class F insulation (Class H insulation is available on request)with polyimide enamel round wire and VPI treated providing strong mechanical support, superior electrical insulation, misture and contamination resistance, and uniform heat dissipation. Thermistors(PTC) are embedded in windings (Thermostats are available on request), one each phase. The squirrel-cage totors are of cast aluminum alloy, fixed on the shaft by...

Frame Size AMPS Power NEMA AMPS Power Code Speed (380V) Factor Effi. Full Locked Break Locked Locked Load Torque -down Net NEMA Current Current Torque (%) Torque Wgt

AMPS Power Speed (460V) Factor Effi. Full Locked Break Locked Locked Load Torque -down Net NEMA AMPS Power NEMA Current Current Torque (%) Torque Wgt Code Speed (380V) Factor Effi. Code (460V) (380V) (Lb.Ft) FLT (%) (kgs)

NEPX Explosion-proof Premium Efficiency MotorGeneral Descriptions NEPX series explosion - proof Premium Efficiency three phase induction motors (Frame143 - 449) are developed by Jiangsu Dazhong Electric Motor Co., ltd in line with NEMA Standards, which ratings, mounting dimensions and electrical performances meet the requirements of latest NEMA Standards. These motors possess many remarkable features such as premium efficiency, low noise, little vibration, large margin of safety intemperature rise, popular shape, safe and reliable operation. a) One thermistor is embedded in per phase of the stator...

High quality steel laminations and magnetic wires adopted Vacuum-pressure-impregnated (VPI) treatment Excellent electrical and mechanical properties High moisture resistance Better thermal stability The cast aluminum rotor is hot shrinked on the shaft. The rotor is dynamically balanced to achieve little vibration. Shield ball bearings are adopted for frame 143T - 21 5T motors. And bearings open with covers are adopted for frame 254T - 449T motors. Such motors are fitted with re - greasing nipples. Frame size Drive end bearing Non-drive end bearing Castlron Conduit Box centrally located F1/F2...

■ Fan and Fan CoverStandard fan of plastics or cast iron according to different usage Fabricated fan cover as standard Cast iron fan cover for Severe Duty HP Frame Size AMPS Power Speed (460V) Factor Effi. --Locked Locked Load Locked -down NEMA AMPS Power NEMA Current Current Torque Torque Torque Code Speed (380V) Factor Effi. Code (460V) (380V) (Lb.Ft) (%) FLT (%)

-- Locked Locked Load Locked AMPS Power NEMA AMPS Power NEMA Current Current Torque Torque Speed (460V) Factor Effi. Code Speed (380V) Factor Effi. Code (460V) (380V) (Lb.Ft) (%) FLT

Department of Energy Washington, DC 20585 January 10, 2011 Shanghai Testing & Inspection Institute for Electrical Equipment 505 Wu Ning Road Shanghai, P.R. China P.c. 200063 This letter is to acknowledge receipt of the electronic messages from Shanghai Testing & Inspection Institute for Electrical Equipment (STIIEE), dated January 6 and 7, 2011, and the accompanying Certification of Compliance with Energy Efficiency Standards for Electric Motors submitted on behalf of Jiangsu Dazhong Electric Motor Co., LTD (Jiangsu Dazhong). We understand that the Compliance Certification (CCl 13B) issued by...