MVI46-MCM的简单介绍MVI46-MCMMVI46-MCMMVI46-MCMMVI46-MCM的详细信息MVI46-MCM MVI46-MCM (2)下放:低速爬行、加速、匀速、减速整个过程很正常,符合要求。 重载提升(下放)试验证明,变频拖动系统提升力矩可满足系统设计提升力矩要求。 4.2运行性能 (1)电流为双向流动。 (2)抗扰性能强。在提升机的加、减速阶段,直流电源电压的最大动态降落或电压超调不超过10%,扰动恢复时间不超过1秒。 (3)静态功率因数稳定,小于5%. (4)交流侧谐波电流小,符合IEEE519规定,小于4%. (5)变频器在启动过程中,启动电流小于1.3倍额定电流。 5结论 兰花集团唐安煤矿副井采用我公司生产的高压提升机变频器调速以后,调速精度高,噪声污染消失,操作也方便,深受现场操作工的欢迎;更重要的是绞车运行可靠,而且节电效果显着,具有非常明显的经济效益和社会效益。 利用变频技术驱动电动机可以实现节能,符合我国有关节能减排的要求和社会需求。为了使变频装置应用在高电压等级、大容量的场合,通常会采用高压大容量的开关器件和多电平的拓扑结构;级联型变流器是一种有很好应用前景的多电平变换器,级联型变频器的具体应用如级联型高压变频器拖动风机、水泵等负载,大多工作在比较重要的场合,在生产或生活中的作用和影响较大,对可靠性要求高,一般要求系统能够连续运转,即使在故障后适当降低容量运行,也不能随时停机。在利用高压变频装置驱动电动机实现节能目标的同时,为了保证系统的可靠性,需要高压变频装置具有一定的容错功能,即在发生器件或者单元故障时,能够自动将其屏蔽,通过调整控制方式,使系统继续运行。 单元串联型高压变频器利用若干低压功率单元串联实现高压输出,这种结构使其具有良好的容错性能;将发生故障的单元屏蔽后,通过一定的故障处理方法,可以使系统继续降低容量运行,保证生产的稳定运行。传统的故障处理方法是采用屏蔽掉故障单元与另外两相中相应的非故障单元,以保持变频器的平衡运行,这样势必会造成非故障单元的浪费,因此对级联型变频器正常工作及故障时处理方法的研究很有必要。本文设计的基于PCI9846的变频器输出性能测试系统主要针对采用三种不同的故障处理方法时,对单元串联型高压变频器输出电能质量的各项指标进行实时监测和分析,尤其是单元发生故障后,系统输出电压的性能指标,应尽量与故障前保持一致,以减小故障对系统工作的影响。该测试系统利用LabVIEW虚拟仪器软件平台搭建系统主控界面,设计了相应的故障处理方法,可以得到不同故障处理方法时的参考波。在多单元级联型变频器仿真模型上进行测试,通过凌华PCI9846数字化仪采集三相电压信号后进行分析处理,获得三相线电压的幅值,频率,总谐波含量,三相电压相位等主要性能指标,从而检查控制算法在系统正常运行及带故障运行时的输出情况。 一 单元串联型高压变频器结构及工作原理 单元串联型高压变频器采用若干个低压功率单元串联的方式实现直接高压输出,其结构如图1所示,采用的变压器为多重化隔离变压器,一次侧输入高压,二次侧输出相互隔离的低压,供给各个功率单元,即图中的各个H桥,系统的三相结构类似。每个功率单元都是一个三相输入、单相输出的交-直-交变频器,具有统一的结构,功率单元的结构如图2所示。 LPM LEXINGTON POWER MANAGEMENT VERSITROL MODEL CMR3008-M CSI HAND HELD VIBRATION METER A185000 NEW TECHNO TECHNOCHECK 8" CHECK VALVE CATALOG 5118 TEMP 500F 125 PSI NEW SEW EURODRIVE ELECTRIC MOTOR AND GEAR REDUCER R77 DT80N4 1 HP 3PH 277/480V FINCOR MOTOR SPEED CONTROL POT BOARD 1052020 1048609 1052023 GRASS REGULATED POWER SUPPLY 115 VAC 50/60 Hz MODEL RPS7C8B GRUNDFOS CRN4-60-A-A-A STAINLESS STEEL 1" 3 HP MULTISTAGE PUMP 460Y VAC 3440 RPM NEW SKF E7-217 BALL SCREW ASSEMBLY 118" LONG 113" TRAVEL 1-1/4" DIA NEW KAYE MACDONALD 1-1/2" STAINLESS STEEL SANITARY PLUG VALVE 150# SA201 MSA 5200 GAS MONITOR IN AKRON ENCLOSURE XJCTG11 GEC ALSTHOM PARVEX MC23SR005 SERVO MOTOR 3000 RPM 2.2/3.3 KW 172/178 V NEW DREXELBROOK 408-6200 UNIVERSAL LEVEL TRANSMITTER 408-6232-001 408-800 SERIES GE 50 AMP BREAKER BUS PLUG 480 VOLT 3 PHASE DE45ED4 NEW ALLEN BRADLEY 119712 DISCRETE ADAPTER BOARD 12 119712 ALLEN BRADLEY 1756-ENBT/A ETHERNET IP COMMUNICATIONS BRIDGE CAT REV H01 FWR 2.4 Va-Tran SGP-50-100 CO2 PURIFIER DEVICE ULTRA PURE BONE DRY NEW HONEYWELL UDC2500 TEMPERATURE CONTROLLER DC2500-C0-1000-?100-00000 W/SOFTWARE RECONDITIONED K + S CHEMICAL PUMP 1-1/4" x 2" MODEL CRS-60 NEW SIEMENS 3NE12250 SEMICONDUCTOR SITOR FUSE 200 AMP BOX OF 3 SQUARE D 400 AMP MAIN LUG ELECTRICAL PANEL 208Y/120 VAC 30 CIRCUIT 44-13937-10 WESTINGHOUSE 7380A36 WDPF QSE CIRCUIT BOARD MODEL 7380A36 G01 5QSE NEW ELECTRO CAM EC-2008-12-DLN-?D-6-2/3 MECHANICAL CAM SWITCH NEW SIEMENS 60 AMP NON-FUSED SAFETY SWITCH 600 VAC 50 HP 3 ? NF652H SQUARE D LIGHTING CONTACTOR 100 AMP 3 POLES 8903 SQG11 URYU UEC-5100 TORQUE CONTROLLER WITH UEC-5RC WORKSTATION SELECTOR KEYPAD NEW BALDOR 5 HP AC ELECTRIC MOTOR FM3218T 184T FRAME 230/460 VOLT 1750 RPM NEW WESTINGHOUSE KD2225 225 AMP 2 POLE CIRCUIT BREAKER NEW LAMBS GRAY DUAL ACTING PNEUMATIC CYLINDER 8" X 5" X 8" X 4" 0000795 19 1/2" FOXJET PRINT CONTROLLER W/ POCKET TERMINAL TYPE 64 110/120 VAC 3 AMP NEW 4" 2UA1 INDUSTRIAL VALVE REPAIR KIT 116723090902 REBUILT 10" HEATING INDUCTION COIL FLUX INSTRUMENT RHEOS 2000 MICRO HPLC PUMP 100-250 V AC 50-60 HZ 2 AMP ORMEC AC SERVO MOTOR MAC-B050C/K1A R004GH 4B2-003 MAC SQUARE D SIZE 2 MCC BUCKET WITH 30 AMP BREAKER FHP36030 8502SDO2S CONTACTOR NEW RELIANCE ELECTRIC TRANSDUCTOR MODULE 0-49009-1 ALLEN BRADLEY 1771-IR RTD INPUT MODULE SER C FWR B 1771-IR C WITH SWIINGARM ADEPT DUAL C AMP BOARD REVISION A MODEL 20338-53000 NEW ALLEN BRADLEY 1771-QD INJECTION CONTROL MODULE SERIES B 1771-QD NEW ALLEN BRADLEY 1305 3 HP AC DRIVE 380-460 VAC 1305-BA06A-ES SERIES C NEW BELL & GOSSETT 2 HP CENTRIFUGAL PUMP 2" 60 GPM NEW GOULDS 2 HP CENTRIFUGAL PUMP 2850/3450 RPM 115-208/230 VAC 1-1/4X1-1/2 NEW GOULDS 2 HP CENTRIFUGAL PUMP 2875/3450 RPM 1 PHASE 115/230 VAC 1X1-1/4 NEW GREAT LAKES INSTRUMENTS ANALYZER CONDUCTIVITY ELECTRODELESS MODEL 672E SQUARE D KC34175 I-LINE CIRCUIT BREAKER 175 AMP NEW SEW-EURODRIVE 2 HP ELECTRIC MOTOR 1720 RPM 230/460 SQUARE D TVS4EMA16AC SURGE SUPPRESSOR 480/277 200 kA DAYTON 10 HP ELETRIC MOTOR 1740 RPM 256U FRAME 3 ? 208-220/440 VAC 2N939F NEW TEXTRON CONE DRIVE 75:1 RATIO GEAR REDUCER ALCALTEL LUCENT OMNIPCX ENTERPRISE COMMUNICATION MODULE 3BA 53118 INTOF SQUARE D QMBS8536 MOTOR STARTERS WITH SIZE 0 8536SBO2 & SIZE 1 8536SBO2 DIVELBISS BOSS BEAR CONTROLLER DCPM-10059 EUCHNER ZSM2200-100697 HANDHELD ENABLING SWITCH FOR ROBOT NEW ROSEMOUNT ALPHALINE PRESSURE TRANSMITTER 85 VDC 1151DP3G22B2D1 BRINKMANN B-169 Vacuum Aspirator Recirculating Water 117 VAC 5 AMP 50/60 Hz NEW CAL-VAL ANGLE COMBINATION PRV 2" PRESSURE REDUCING & CHECK VALVE 90-01ADS NEW PRINTRONIX 104711-001-C POWER SUPPLY CONTROLLER WITH 105018-901 BOARD GE 20 HP AC ELECTRIC MOTOR FRAME 286T 1175 RPM 575 VAC REBUILT NEW RED VALVE TYPE A PINCH VALVE 03-4706 4" NEW WILDEN DIAPHRAGM PARTS 08-3807-03 04-3185-01 08-3127-01 M10 COMPLETE CENTER IDEX VIKING .33 HP 1/2" SPUR GEAR DOUBLE PUMP 115/208-230 VOLT SG-40525-G00 MAGNETEK 3 HP VARIABLE SPEED DC MOTOR 1750 RPM 143TC FRAME CAT D072 TWIN CITY 1 HP BLOWER 1725 RPM 208-230/460 3 PHASE SIZE 807 9-1/4" FLANGE INTAKE GE SIZE 5 MOTOR STARTER 230 VAC COIL 600 VAC 200 HP GENERAL ELECTRIC PARKER HANNIFIN 3/4" TRUNION MOUNT PNEUMATIC CYLINDER 10" BORE X 27" STROKE BECKMAN MODEL DU640 LABORATORY SERIES 600 SPECTROPHOTOMET?ER REXROTH HYDRAULIC PUMP 1PV2V3-31/40RW1?2MC63A1/5 NEW INTEROLL POWERROLL DRUM MOTOR 460 VAC 0.3 HP 40" LONG MODEL 6273 VIDEOJET KEYBOARD PLATE OPERATOR INTERFACE KEYPAD MODEL 37EZ NEW COPELAND AIR COND. COMPRESSOR RES3-0175-PFJ-9?00 ATKINS TECHNICAL DIGITAL PSYCHROMETER 90023-F RANGE 0.0o TO 199.9oF DEZURIK 316 STAINLESS 3" ACTUATED VALVE KGS 9321399 W/ POSITIONER TEXTRON CONE DRIVE HOLLOW SHAFT GEAR REDUCER 5:1 RATIO 11.70 HP 2-1/4" BORE NEW RELIANCE 1 HP AC ELECTRIC GEAR MOTOR 24.6 RPM OUTPUT 1-1/8" SHAFT 230 460 V NEW ACCUTHERM 33" IMMERSION HEATER 480 VAC 3 ? 6 ELEMENTS 422-45-302-N-15?7 WRIGHT-WAY 1 HP 4-5 TON TRACTOR/TROLLEY 208-230/460 VAC 80 FPM 3 ? 2300060 JOYAL WELDER CONSTANT CURRENT CONTROLLER MODEL JSCC 1CCSR61120R 230 VOLT NEW SKF SPHERICAL ROLLER BEARING 150MM BORE 250MM OD 80MM WIDTH 23130 CCK/C3W33 NEW NSK SPHERICAL ROLLER BEARING 150MM BORE 250MM OD 80MM WIDTH 23130CKE4C3S11 REFURBISHED AERZEN VACUUM BLOWER PRESSURE DIFFERENCE VALVE 1000 MBAR NEW AMERICAN METER COMPANY MODEL 2 M ROTARY GAS METER MAOP 175 PSI 2000 CFH 1.5" URYU SEISAKU UEC-5100 TORQUE CONTROLLER URYU UEC 120 VAC HIRATA CARTESIAN ROBOT LINEAR ACTUATOR MZF-N2010AP NEW LINCOLN ELECTRIC ULTIMATE-E2 SEVERE DUTY CS4B2T61 2HP 1735RPM 230/460V DORNER 2100 SERIES 2100-0204-01/02 CONVEYOR BELT 48" LONG X 2" WIDE NEW FLOWDATA JPA-2A-D FREQUENCY TRANSMITTER 3/8" FLOW METER FDO1F PS-910-QD PLUS APPLETON ARS240-118 HAZARDOUS LOCATION FLUORESCENT LIGHT FIXTURE 120 VAC FISCHER PORTER PULSE DATA LCD SCREEN FOR FLOWMETER CD685A371U50 CD674A254U51 NEW DOLAN-JENNER SAFETY CURTAIN RECEIVER SET SSIV-7 RESPONSE TIME 32 MS SYMBOL BARCODE SCANNER AND CHARGING BASE PDT6800-NOS6400?0 59942-01-00 NEW DOLAN-JENNER SAFETY CURTAIN RECEIVER SET SSIV-7 RESPONSE TIME 30 MS ITT HOFFMAN F & T STEAM TRAP 2" FT125X NEW ADEPT STORAGE CONTROLLER PC BOARD 10300-46610 REVISION D NEW BALLUFF BESINDUCTIVE PROXIMITY SENSOR RPEA-3005P-PU-0?2 SIEMENS 400 AMP MAIN LUG ELECTRICAL PANEL 208Y/120 VAC 42 CIRCUIT 3 PHASE AUTOTECH M1600-8 PROGRAMMABLE LIMIT SWITCH M16008 M 1600 S REMANUFACTURED KUNKLE SAFETY VALVE 1.5" 6252FJG01-AS NEW JOHNSON CONTROLS METASYS AS-UNT140-101 UNITARY CONTROLLER NEW LAMBS GRAY PNEUMATIC CYLINDER 8" BORE X 8" STROKE 0353418 SQUARE D 1200 AMP CIRCUIT BREAKER ENCLOSURE 600 VAC 250 VDC NA-1200S WERIE RIETSCHIE RING BLOWER COMPRESSOR SKP 35826-2 REFURBISHED RELIANCE GEARMOTOR DRIVE 1.5 Hp 129.7:1 RATIO 145TG21A2 WINSMITH 200:1 RATIO GEAR REDUCER 1750 RPM .702 HP BORE 5/8" MODEL 930MDVD ESI LASER BTW PRE AMP MODULE BOARD CKA 72616 REFURBISHED DODGE 2.69 HP 60:1 RATIO GEAR SPEED REDUCER ZAHN ELECTRONICS CHOPPER SERVO AMPLIFIER MODEL CH10090F/180 NEW MILLER CIRCUIT CARD ASSY,I/O INTERFACE PC BOARD 210700 REBUILT LINX XYMARK LASER PRINTER CONTROL BOARD 0632-706-00 REV 5 ONLINE ENERGY INC. UV PROCESSOR CPU & MOTHERBOARD NEW BELL & GOSSETT 2DES3F4T1G1A SUBMERSIBLE PUMP 2" NETSTAL INJECTION MOLDING CIRCUIT BOARD 110.240.9216A 110.240.9217D NEW NETSTAL INJECTION MOLDING CIRCUIT BOARD 110.240.9909A ACOPIAN W24GT50 POWER SUPPLY FUSE 25A RATING 125 V ABB TBI-BAILEY TB515 TWO WIRE PH TRANSMITTER NEMA 4X WITH PROBE TB55711600F15 NEW PMC BETA 440SR10002001 SOLID STATE VIBRATION SWITCH 115 VAC BAILEY TB701401 PH ANALYTICAL CONTROLLER NEW SQUARE D 125 AMP I-LINE CIRCUIT BREAKER KA36125 3 POLE 600 VAC HAAS LASER PCB CIRCUIT BOARD LLK 18-06-39-00 18-06-39-AH V1.1 NEW YOKOGAWA SERVO ACTUATOR DR1220E60 NEW NORRISEAL SERIES 1005P1 PNEUMATIC FLOAT ACTUATED SWITCH 1018-VP DYNA PACK M-404 PUMP WITH TANK BALDOR MOTOR 1.5 HP 56C FRAME NEW KRAUSS MAFFEI CONTROL MODULE SR-501 5089435 ROSEMOUNT TRANSMITTER 1151DP4E12S2 SENSOR 1199SSW22A11 POLYSONICS TYME-FLYTE ULTRASONIC FLOWMETER TF-P1 110V NEW BOSTON 60:1 MOTOR SPEED GEAR REDUCER 140T MOUNT RF721B60B7 .5 HP NEW 43-1-02 IMMERSION PLATE HEATER FROM SOLAR CELL MANUFACTURING PLANT NEW COMPAC TORQUE 40 ACTUATOR BALL VALVE 1-1/2" ACUTRAK MONITOR 2004N REBUILT TOYO-OKI HYDRAULIC PUMP 1-1/2" X 3/4" HPP-VC2V-FI4A3-?A ABB 20 HP VFD DRIVE ACS501-020-4-00?P2 440-500 VAC NEW GE FANUC SERVO AMPLIFIER A06B-6058-H013 ROSEMOUNT 1151 SMART 1151GP8S12B1 FLOW CONTROL TRANSMITTER DP/GP 0041-0082 NEW SIEMENS 3" CAST IRON PNEUMATIC ACTUATED VALVE 599-05981 NEW SIEMENS COMMUNICATIONS PROCESSOR MODULE 6ES7 340-1AH02-0AE0 AMSCO DIGITAL PRINTER CONTROL BOARD 146651-003 8920989473 BURKERT 8713 1.0 SLPM N2 MASS FLOW CONTROLLER BURKERT 8713 MFL LOFT 3.0 SLPM MASS FLOW CONTROLLER NEW BARBER COLMAN 2408 F PROGRAMMABLE CONTROLLER ROSEMOUNT PRESSURE TRANSMITTER 10.5-36 VDC 4-20mA 150 PSI 2008 G2S2BA1S1K5 NEW WESTINGHOUSE 225 AMP TRIP UNIT 3 POLE RANGE HI 2250 LO 1125 HKA3225T Enerpac Hydraulic Cylinder RD-256 AEG SCHNEIDER TSX QUANTUM ANALOG OUTPUT MODULE 4 CHANNEL MODEL 140 ACO 020 00 NEW PHD SED26X1-AE SLIDE AND CYLINDER W/SED26X1-AE-H4 CYLINDER HOFFMAN WALL MOUNT STAINLESS STEEL ENCLOSURE W/ BACKPLATE 24X16X8 A-24H1608SSLP SQUARE D LC36300 CIRCUIT BREAKER 300 AMP I-LINE CIRCUIT BREAKER INTERRUPTER AUTO-MATRIX GX1 DIRECT DIGITAL UNITARY CONTROLLER 1A-00-00-0104 MOOG BRUSHLESS SERVO POWER SUPPLY 150-201C-02 220 VAC INPUT 310 VDC OUTPUT NEW SQUARE D I-LINE 60 AMP 240V BUS PLUG FUSED BUS PLUG 3? 3 WIRE PQ3206G THOMSON ATR014-020-U0 90o TRUE PLANETARY GEARHEAD SIZE 14 20:1 RATIO OHIO 1-1/2 HP BLOWER UNIT W/ INDUCTION MOTOR 208-230/460 VAC 3450 RPM MODEL 5C SQUARE D STAINLESS STEEL MANUAL MOTOR STARTER 600 VAC 10 HP 3 PHASE 2510MCW13 VICKERS RIGHT HAND ROTATION HYDRAULIC VANE PUMP V202P8S1A11 NEW KAYE INSTRUMENTS U0902 CIRCUIT BOARD LARMARCHE 36 VOLT 18 CELL FORKLIFT BATTERY CHARGER A45-105-18L-B/D?/C3 105 AMPS BALDOR ELECTRIC MOTOR VLCP2334T 20 HP 230/460V 48/24 AMP 1760 RPM FRAME 256LP NEW BRISTOL AIR CONDITIONING COMP. H29A423DBVA NEW YOKOGAWA FUTABA DISPLAY BOARD MODEL M40MT01AA MICROVOICE MV1000 RACKMOUNT 1000-256-00-002 FW HERBERHOLZ 8" ALUMINUM ACTUATED BUTTERFLY VALVE LK-241 W/ POSITIONER NEW ASAHI ACTUATED BUTTERFLY VALVE 10" PVC 98A00022F NEW TR ELECTRONIC GMBH ENCODER 11-27 VDC TYPE CE 65M NEW NELES JAMESBURY 3" STAINLESS STEEL BALL VALVE CLASS 150 MODEL 6150313600MT1 NEW MAGNETROL 1" TRIPLE STAGE DISPLACER SWITCH 120 VAC 15 AMP C15-2E2B-OMB NEW SEW EURODRIVE 65.9:1 GEAR SPEED REDUCER KA86T-LP112 NEW GE FTNSE02EM MOTOR STARTER SIZE 3 ELECTRIC OVERLOAD 65-130 AMP 50 HP 3 ? NEW RELIANCE NEW YORK HVAC FAN BLOWER 1/2 HP 3450 RPM 230 / 460 VOLT SIZE 85 NEW JAMESBURY 1 1/2" STAINLESS ACTUATED VALVE NEW SEALED ALLEN BRADLEY 1762-L24AWA MICROLOGIX 1200 CONTROLLER SER C REV H NEW KISSLING 67580/6 MOTOR GEAR SPEED REDUCER 3000:56 KISSLING 67580 6 GOULD MODICON PROCESSOR MODULE PC-0984-480 AS-9508-000 PERCEPTRON DIGITAL 3 TRICAM 917-4008 LASER DIGITAL SURFACE SENSOR NEW GENERAL ELECTRIC 180 AMP 3 POLE CONTACT KIT CR153 WAGO 750-315 FIELDBUS COUPLER PERCEPTRON DIGITAL 3 TRICAM 917-4010 LASER DIGITAL SURFACE SENSOR SQUARE D MAF36450 CIRCUIT BREAKER 450 AMP 3 POLE 600 V HIRATA BASE ROBOT CONTROLLER HNC-54A4-2 MZF-N2010AP ANDERSON INSTRUMENT SV077G004G1100 PRESSURE TRANSMITTER NEW STI UNIVERSAL SAFETY MAT UM SERIES UM3624 NEW RATHGEBER ETDLT2000 TRANSFORMER 2X 110 HV 2X 110 LV 1600/6000 VA ALLENAIR BRASS PNEUMATIC AIR CYLINDER C-3X.34-OS-NT-C?H MOOG 150-201D-02 BRUSHLESS POWER SUPPLY 15 KW 50 AMP SINGLE AND 3 PHASE NEW LMI MILTON ROY DIGITAL METERING PUMP 120 VAC 1.40 AMPS MODEL A951-393SI NEW HONEYWELL M7385A-1010 VALVE POSTIONER MOTOR M7385A1010 NEW FALK 1040G 10 SLEEVE SHR BLT 0744986 & FALK FLEX HUB REBORE 0765055 4.9340 Electron Fusion Devices EFD 1500XL Fluid Liquid Epoxy Adhesive Dispenser Module NEW RELIANCE NETWORK COMMUNICATION BOARD 0-58774-103 OMRON T200H-MIF01-V1 MODULE INTERFACE UNIT MIF01 V1 MDL INTERFACE UNIT MIF01V1 SQUARE D KA361751021 175 AMP I LINE CIRCUIT BREAKER W/ SHUNT TRIP NEW FISHER 289H-3 RELIEF VALVE 2" NEW US MOTORS 5 HP XP AC ELECTRIC MOTOR 184HP FRAME SQUARE D 80 AMP FCL340801021 ENCLOSED CIRCUIT BREAKER SHUNT TRIP 480 VAC 3 POLE ABB TBI-BAILEY TB515 TWO WIRE PH TRANSMITTER NEMA 4X WITH PROBE BALDOR 1-1/2 HP ELECTRIC MOTOR W/ 7"X5" BLOWER 208-230/460 VAC 3450 RPM M3550 NEW SQUARE D 200 AMP FUSED DISCONNECT SWITCH 600 VAC 150 HP 3 PHASE QMB-364 |