NEMA隔爆型三相异步电动机.doc

NEMA隔爆型三相异步电动机0EE138122佳木斯电机股份有限公司二00三年一月NEMA隔爆型三相异步电动机一、概述NEMA隔爆型三相异步电动机为自扇冷式电机，该系列电动机在功率等级、安装尺寸及电气机械性能均符合NEMA和加拿大C390-93标准要求，款式新颖、制作精良、安全可靠。同时，电动机在隔爆结构上完全符合GB3836中的有关规定，其中 GB3836.1在技术内容上与IEC60079-0等效，电动机可制成ExdIIBT1,T2,T3,T4和其它级别的电动机,适用于有爆炸性气体环境存在的场所。用户可根据自己的使用环境条件来选用电动机。该系列电动机采用B设计，F级绝缘，使用系数为1.15，电动机额定电压208V230V/460V（25HP以下），230V/460V（25HP150HP），460V（150HP以上），额定频率60Hz，适用于无特殊要求的场合，最高温度不超过40，海拔不超过3300ft（1000m），可作为各种机械设备的动力设备。可根据用户需要进行特殊制造，或选用C、D设计，或各类安装型式，或B、 H级绝缘等级，或不同电压、频率的要求(如380V，50Hz)。型号含义NEMA 44 5 T S 2 极数短轴标准尺寸的机座NEMA标准中2F尺寸的代号中心高（in）D的4倍标准代号二、结构简介NEMA标准电动机机座和端盖采用高强度铸铁，耐腐蚀、寿命长、机座外表面有散热片，易于散热。轴承：机座号143T215T采用全封闭轴承；254T449T采用开启式轴承，备有加油孔，加入3号锂基脂。从轴伸端视之，接线盒位于电动机顶部，且接线盒具有足够大的空腔，便于接线、维修。接线盒由铸铁制成，出线孔为英制螺纹。接线盒内备有接地螺钉及接线图。接线方式：150HP以下（不包括150HP）出线为9根，150HP及以上电动机出线为6根，出线端标志见图1。图1 出线端标志图安装型式：T型 有底脚的普通安装结构型式TC型有底脚或无底脚C型平面安装的结构型式电动机的安装方式应符合NEMA MG1-4.03标准规定，安装代号应符合表1。表1地面安装墙上安装顶面安装F-1F-2W-1 W-2 W-3 W-4W-5 W-6 W-7 W-8C-1C-2三、主要技术性能参数（见表2）。NEMA B设计见表2；NEMA D设计见表3。表 2中心高额定功率满 载 时堵转电流460VA堵转转矩额定转矩%最大转矩额定转矩%噪声dB(A)重量kgHPkW转速r/min电流460VA联结方式效率%功率因数Cos同 步 转 速 3600r/min， 60Hz143T0.50.3734420.822Y/Y700.8151252508516143T0.750.5534421.142Y/Y730.8371252508517143T1.00.7534421.492Y/Y75.50.84151252508518143T1.51.134421.992Y/Y82.50.84201752508520145T21.534422.612Y/Y840.86251702308522182T32.235033.762Y/Y85.50.86321602308834184T53.734936.102Y/Y87.50.87461502158835213T7.55.535058.862/88.50.88641402009166215T107.5350412.12/88.50.87811352009170254T1511352217.792/90.20.8611613020094120256T2015351723.722/90.20.8814513020094125284TS2518.5353428.992/910.88182.513020094168286TS3022352534.12/910.89217.513020094170324TS4030353946.72/91.70.88290125200100235326TS5037354957.12/92.40.88362.5120200100252364TS6045355769.82/930.87435120200101320365TS7555356785.52/930.87542.5105200101340405TS100753565116.92/93.60.86725105200102450444TS125903570140.62/94.50.85907.5100200102706445TS1501103570169.8294.50.861085100200102760445TS1751323570196.9294.50.891225100200102760447TS2001503570225.22950.881450100200102899449TS2501853575276.6295.40.881825701751021083同 步 转 速 1800r/min， 60Hz143T0.50.3717241.032Y/Y690.6552753007016143T0.750.5517241.472Y/Y710.6672753007017143T1.00.7517241.732Y/Y82.50.67152753007023145T1.51.117162.312Y/Y840.71202502807022145T21.517103.12Y/Y840.72252352707024182T32.217464.322Y/Y87.50.73322152507448184T53.717366.392Y/Y87.50.80461852257449213T7.55.517489.642/89.50.8063.51702257967续 表 2中心高额定功率满 载 时堵转电流460VA堵转转矩额定转矩%最大转矩额定转矩%噪声dB(A)重量kgHPkW转速r/min电流460VA联结方式效率%功率因数Cos同 步 转 速 1800r/min， 60Hz215T107.5174312.82/89.50.82811652007979254T1511175918.52/910.8211616020084120256T2015175624.62/910.8414515020084141284T2518.5176328.92/92.40.87182.515020085191286T3022173034.72/92.40.86217.515020085191324T40301769472/930.8629014020089252326T5037177158.22/930.86362.514020089260364T60451776712/93.60.8543514020095300365T7555177787.32/94.10.84542.514020095338405T100751775117.22/94.50.8572512520098450444T125901780140.62/94.50.85907.5110200100768445T15011017801692950.861085110200100840445T1751321787200.52950.871225100200100840447T2001501787227.82950.871450100200100987449T2501851790280.92950.871825801751001169同 步 转 速1200r/min， 60Hz143T0.50.3711501.12Y/Y660.6351802756421143T0.750.5511501.582Y/Y690.6371752756422145T1.00.7511501.852Y/Y800.65151702656425182T1.51.111582.522Y/Y85.50.64201652506742184T21.511553.152Y/Y86.50.69251602406743213T32.211694.382Y/Y87.50.72321552307164215T53.711677.472Y/Y87.50.71461502157175254T7.55.5116910.82/89.50.7163.515021575100256T107.5116714.22/89.50.748115020575117284T1511117219.62/90.20.7811614020080176286T2015116926.42/90.20.7914513520080180324T2518.5117432.92/91.70.77182.513520083228326T3022117338.62/91.70.78217.513520083244364T4030118048.82/930.83217.513520086304续 表 2中心高额定功率满 载 时堵转电流460VA堵转转矩额定转矩%最大转矩额定转矩%噪声dB(A)重量kgHPkW转速r/min电流460VA联结方式效率%功率因数Cos同 步 转 速1200r/min， 60Hz365T5037118060.92/930.82362.513520086308404T6045118572.72/93.60.8343513520090430405T75551185912/93.60.81542.513520090430444T1007511801222/94.10.82725125200100795445T125901185144.62/94.10.83908125200100863447T1501101186177.22950.821085120200100997447T1751321187200.52950.871225120200100997449T20015011852252950.8814501202001001185同 步 转 速 900r/min， 60Hz143T0.50.378601.102Y/Y680.6251402256722145T0.750.558601.562Y/Y700.6371352206725182T1.00.758651.982Y/Y740.64151352156942184T1.51.18652.62Y/Y770.69201302106943213T21.58653.32Y/Y82.50.69251302107264215T32.28654.62Y/Y840.71321302057275254T53.78686.62Y/Y85.50.7254613020576106256T7.55.586810.82/85.50.756412520576117284T107.5868142/88.50.768112520080174286T151186820.52/88.50.7611612520080178324T201587027.72/89.50.7614512520083228326T2518.587033.72/89.50.7718312520083244364T302287038.92/910.7821812520086304365T403087052.42/910.7929012520086308404T503788564.62/910.7936312520089430405T6045885782/91.70.7943512520089430444T755588593.82/920.8054312520093787445T10075885125.62/92.50.8172512020093857447T125908881472/93.20.82908120200931011449T150110889180.5293.50.821015120200931209注：电压不是460V时，其堵转电流与电压成反比。表 3中心高额定功率满 载 时堵转电流460VA堵转转矩额定转矩%噪声dB(A)重量kgHPkW电流460VA联结方式效率%功率因数Cos同 步 转 速 3600r/min， 460V 60Hz143T0.50.370.822Y/Y700.8152758516143T0.750.551.142Y/Y730.8372758517143T1.00.751.492Y/Y750.84152758518143T1.51.12.122Y/Y76.50.85202758520145T21.52.942Y/Y780.82252758522182T32.24.132Y/Y80.50.83322758834184T53.76.592Y/Y820.86462758835213T7.55.59.392/85.50.86642759166215T107.512.42/86.20.88812759170254T151117.992/87.20.8811627594120256T201524.52/88.20.8714527594125284TS2518.529.652/890.88182.527594168286TS302235.32/890.88217.527594170324TS403047.52/900.88290275100235326TS503758.32/90.50.88362.5275100252364TS604570.52/910.88435275101320365TS755585.72/91.50.88542.5275101340405TS10075115.62/91.50.89725275102450444TS12590137.952/920.89907.5275102706445TS150110167.7292.50.891085275102760445TS175132200.12930.891225275102760447TS200150226.5293.50.891450275102899449TS250185279.1293.50.8918252751021083同 步 转 速 1800r/min， 460V 60Hz143T0.50.370.8972Y/Y690.7552757016143T0.750.551.272Y/Y72.50.7572757017143T1.00.751.682Y/Y74.50.75152757023145T1.51.12.272Y/Y780.78202757022145T21.52.982Y/Y790.80252757024182T32.24.212Y/Y810.81322757448184T53.76.952Y/Y82.50.81462757449213T7.55.59.732/85.50.8363.52757967续 表 3中心高额定功率满 载 时堵转电流460VA堵转转矩额定转矩%噪声dB(A)重量kgHPkW电流460VA联结方式效率%功率因数Cos同 步 转 速 1800r/min， 460V 60Hz215T107.512.82/870.85812757979254T151118.92/880.8311627584120256T201525.32/88.50.8414527584141284T2518.529.72/910.86182.527585191286T302234.72/91.50.87217.527585191324T4030472/92.20.8729027589252326T503758.22/91.80.87362.527589260364T604569.62/92.30.8843527595300365T755584.72/92.70.88542.527595338405T10075113.22/93.50.8972527598450444T125901352/940.89907.5275100768445T150110164.2294.50.891085275100840445T175132197294.50.891225275100840447T200150223.9294.50.891450275100987449T250185276.1294.50.8918252751001169同 步 转 速1200r/min， 60Hz143T0.50.371.052Y/Y630.7052756421143T0.750.551.452Y/Y660.7272756422145T1.00.751.852Y/Y72.50.70152756425182T1.51.12.682Y/Y72.50.71202756742184T21.53.332Y/Y77.50.73252756743213T32.24.762Y/Y80.50.72322757164215T53.77.362Y/Y830.76462757175254T7.55.510.82/840.7663.527575100256T107.514.52/85.30.768127575117284T151121.12/860.7611627580176286T201527.72/870.7814527580180324T2518.531.32/89.50.83182.527583228326T3022372/89.80.83217.527583244364T403050.92/90.20.82217.527586304续 表 3中心高额定功率满 载 时堵转电流460VA堵转转矩额定转矩%噪声dB(A)重量kgHPkW电流460VA联结方式效率%功率因数Cos同 步 转 速1200r/min， 60Hz365T503759.22/90.20.87362.527586308404T604572.32/90.80.8643527590430405T755585.32/920.88542.527590430444T10075117.62/920.87725275100795445T12590139.92/92.80.87908275100863447T150110170.6293.00.871085275100997447T175132203.7293.50.871225275100997449T200150230.7293.80.8714502751001185同 步 转 速 900r/min， 460V 60Hz143T0.50.371.192Y/Y630.6252756722145T0.750.551.712Y/Y640.6372756725182T1.00.751.952Y/Y710.68152756942184T1.51.12.742Y/Y730.69202756943213T21.53.642Y/Y750.69252757264215T32.24.732Y/Y800.73322757275254T53.77.672Y/Y830.734627576106256T7.55.510.82/840.756427576117284T107.514.22/850.778127580174286T151120.62/860.7711627580178324T201527.82/880.7614527583228326T2518.532.92/89.50.7818327583244364T302237.92/900.8021827586304365T403052.12/90.50.7929027586308404T503764.22/90.50.7936327589430405T604576.72/910.8043527589430444T755591.82/91.80.8154327593787445T10075124.92/92.00.8172527593857447T12590146.92/92.80.82908275931011449T150110179.7293.60.8210152759312098四、外形安装及尺寸图2 NEMA单直轴伸底脚安装外形尺寸图 表4机座号外 形 及 安 装 尺 寸 (in)A(最大)B(最大)CDE2FGHJOPRSUV(最小)ES(最小)AAABBAN-W143T7.15.214.23.52.754.00.550.341.4514.07.40.7710.1880.8752.001.413/48.852.252.25145T6.215.25.0182T9.06.517.14.53.754.50.620.411.9715.79.370.9860.2501.1252.501.783/48.852.752.75184T7.518.15.5213T11.08.120.15.254.255.50.710.412.3618.510.91.2010.3121.3753.122.4119.453.53.38215T9.5721.77254T12.9910.625.86.255.08.250.780.532.7620.9131.4160.3751.6253.752.9111/49.454.254.00256T12.327.410284T14.012.2429.17.05.59.50.8660.532.7622.2414.61.5910.51.8754.383.2811/29.454.754.62284TS12.427.49.51.4160.3751.6253.001.913.25表4续机座号外 形 及 安 装 尺 寸 (in)A(最大)B(最大)CDE2FGHJOPRSUV(最小)ES(最小)AAABBAN-W286T14.013.7429.57.05.5110.550.532.7622.2414.61.5910.51.8754.383.281/29.454.754.62286TS281.4160.3751.6253.001.913.25324T15.314.430.78.06.2510.50.980.662.7624.615.801.8450.52.1255.003.91211.45.255.25324TS29.21.5910.51.8753.502.033.75326T14.430.7121.8450.52.1255.003.915.25326TS29.21.5910.51.8753.502.033.75364T17.114.433.39.07.011.251.10.662.93526.417.72.0210.6252.3755.624.2835.885.88364TS321.5910.51.8753.502.033.75365T15.434.1512.252.0210.6252.3755.624.285.88365TS331.5910.51.8753.502.033.75404T19.2917.937.010.08.012.251.340.813.1530.319.652.450.752.8757.005.6512.996.627.25404TS341.8450.52.1254.002.784.25405T3713.752.450.752.8757.005.657.25405TS341.8450.52.1254.002.784.25444T2218.54411.09.014.51.563.3532.68222.880.8753.3758.256.917.58.5444TS43.22.0210.6252.3754.53.034.75445T20.54716.52.880.8753.3758.256.918.5445TS46.22.0210.6252.3754.53.034.75447T24.050202.880.8753.3758.256.918.5447TS49.22.0210.6252.3754.53.034.75449T29.054253.152.880.8753.3758.256.918.5449TS53.22.0210.6252.3754.503.034.75447TZ24.050203.352.880.8753.3759.8758.53510.125449TZ29.055253.15 1in=25.4mm当采用8个（BF）孔时，另外4个孔在水平和垂直中心线的位置上。图3 NEMA（C型）平面安装有底脚或无底脚外形尺寸图表 5机座号外 形 及 安 装 尺 寸（in）AJAKBA最小BBBC最大BD孔数BF螺栓穿透允许值UAHR最小ESS143TC、145TC5.8754.5002.750.160.126.5041/8-160.560.8752.120.7711.410.188182TC、184TC7.2508.5003.500.250.129.0041/2-130.751.1252.620.9861.780.250182TCH、184TCH5.8754.5003.500.160.126.5043/8-160.561.1252.620.9861.780.250213TC、215TC7.2508.5004.250.250.259.0041/2-130.751.3753.121.2012.410.312254TC、256TC7.2588.5004.750.250.2510.0041/2-130.751.6253.751.4162.910.375284TC、286TC9.00010.5004.750.250.2511.2541/2-130.751.8754.381.5913.280.500284TSC、286TSC9.00010.5004.750.250.2511.2541/2-130.751.6253.001.4161.910.375324TC、326TCH11.00012.5005.250.250.2514.0043/8-110.752.1255.001.8453.910.500324TSC、326TSC11.00012.5005.250.250.2514.0043/8-110.751.8753.501.5912.030.500364TC、365TC11.00012.5005.880.250.2514.0085/8-110.942.3755.622.0214.280.625364TSC、365TSC11.00012.5005.880.250.2514.0085/8-110.941.8753.501.5912.030.500404TC、405TC11.00012.5006.620.250.2515.5085/8-110.942.3757.002.4505.650.750404TSC、405TSC11.00012.5006.620.250.2515.5085/8-110.942.1254.001.8452.780.500444TSC、445TC14.00016.0007.500.250.2518.0085/8-110.943.3758.252.8806.910.875444TSC、445TSC14.00016.0007.500.250.2518.0085/8-110.943.3754.502.0213.030.625447TC、449TC14.00016.0007.500.250.2518.0085/8-110.943.3758.252.8806.910.875447TSC、449TSC14.00016.0007.500.250.2518.0085/8-110.942.3754.502.0213.030.625447TZC、449TZC14.000