IEEE-841 NEMA Premium石化行業電機


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

    變頻范圍:VT=3~60HZ, CT=6~60HZ.  (VT=variable torque 變轉矩; CT=constant torque 恒轉矩)


    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