IEEE841石化行业防爆电机

IEEE841石化行业防爆电机

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  • IEEE841石化行业防爆电机

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DETAILED DESCRIPTION


可同时满足防爆和变频使用场合

防爆等级:CSA Certified for Class I, Division II, Groups B, C, D; Class II, Div. 2, Groups F & G. 

变频范围:VT=3~60HZ, CT=6~60HZ.  (VT=variable torque 变转矩; CT=constant torque 恒转矩)


Electrical Features

? Designed to meet NEMA MG-1, MG-13 and IEEE 841

? Stock available in 460V and 575V; other voltages available upon request

? Premium efficiency; meets or exceeds the requirements of EPACT '92 and Canadian Federal Efficiency Levels defined in CSA C390-93; Full load efficiency of all ratings is certified under the EEV Program of the CSA

? UL recognized Class F non-hygroscopic insulation system with HPE? (High Pulse Endurance) index, heavy heat resistance enameled copper wire insures longer winding life and reliability

? CSA certified for Class 1, Division II, Group B, C and D with Temperature Code T3C

? Class B temperature rise, 80°C rise by resistance method at 1.0 S.F.; 90°C rise at 1.15 SF

? 3 Leads solderless lug terminals

? Meets GM 7E-TA specifications

Mechanical Features

? Bearing temperature rise is below 45°C for all 4P and 6P ratings; 50°C for all 2P motors

? Sound power levels are below 85 dBA providing quiet operation

? Full cast iron construction: frame,brackets, fan cover and conduit box with IP55 rated protection

? Frame provided with two threaded drain holes with drain plugs and a drilled and tapped hole for a ground lug

? Corrosion-resistant, cast iron conduit box has twice the volume required by NEMA. The conduit box is fully gasketed with NPT threaded conduit entry

? Regreaseable bearing construction with inner bearing caps prevent bearing contamination

? Non-sparking plastic or bronze fan

? All internal rotor, stator and shaft surfaces are cleaned and coated with moisture resistant varnish; Exterior is painted with zinc-chromate epoxy base with a blue finish

? Stainless steel hardware and nameplate

? Vibration will not exceed 0.08 inches per second

? Motors can be re-rated for 415, 400 and 380 volts at 50 HZ

? CSA and UL approved for Inverter Duty per NEMA MG1 Part 31, with speed range of 20:1 variable torque and 10:1 constant torque


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