点击图片查看原图
⒀ 并联使用IGBT，在更换时没有考虑型号、批号的一致性，导致各并联元件电流不均而损坏。
⒁ 变频器内部保护电路（过电压、过电流保护）的某元件损坏，失去保护功能。
⒂ 变频器内部某组电源，特别是IGBT驱动级+、-电源损坏，改变了输出值或两组电源间绝缘被击穿。
三、更换
只有查到损坏的根本原因，并首先消除再次损坏的可能，才能更换逆变模块，否则换上去的新模块会再损坏。
⑴ IGBT同绝缘栅场效应管一样要避免静电损坏。在装配焊接中防止损坏的根本措施是，把要修理的机器、IGBT模块、电烙铁、人、操作工作台垫板等全部用导线连接起来，使得在同一电场电位下进行操作，全部连接的公共点如能接地就更好。特别是电烙铁头上不能带有市电高电位，示波器电源要用隔离良好的变压器隔离。IGBT模块在未使用前要保持控制极G与发射极E接通，不得随意去掉该器件出厂前的防静电保护G-E连通措施。
⑵ 功率模块与散热器之间涂导热硅脂，保证涂层厚度0.1耀0.25mm，接触面80%以上，紧固力矩按紧固螺钉大小施加（M4 13kg?cm，M5 17kg?cm，M6 22kg?cm），以确保模块散热良好。
Square D 8501 X020 Control Relay
Viking Pump Part 2-294-542-100-00
Hoffman A806LP Jic Box
Garlock Flow Meter w/ Needle Valve & Pressure Gage
Vogt / Flowserve 3/4" Gate Valve
CRS 202803 1/8" Single Head GPS w/ Moisture Cartridge
Eurotherm 831/20A240V/4-20mA/Fell Power?Controller
co T-134 2" Brass Gate Valve
Jupiter Pneumatics 1/2" Brass FXF Auto Drain Ball Valves-LOT OF 7
PE Power Electronics?International Inc.?R12W600 Regeneration?Resistor
Vogt 3/4" Gate Valves-LOT OF 2
ITC MC Programming Timer
Turck NI10-G18-AZ3X-B1431 50MM ProximitySenors-LOT OF?2
Omron S8VS-12024 Power Supply NICE SHAPE
Allen Bradley 592-BAV16 Size 0-1 OveroadRelay
Allen Bradley 2711P?Panelview Plus PowerSupply
PENN P29NC-3 Low Pressure Control
Pilz PNOZ X3 Safety?Relay
Honeywell STT3000 Temperature Transmitter
Shockwatch Impact Safety Monitor / Recorder Sensor M
Square D QO230 30 Amp Plug-On Circuit Breakers-LOT OF 5
SMC VQC4101-5 VVQ4000 Directional Control Valve Manifold
M-System SV-AA-D Signal Transmitter
Honeywell H409A 1002?Heater Controller?NICE SHAPE
Allen Bradley 592-BOV16 Overload Relay
Hubbell HBLDS3 30 Amp Circuit-Lock Disconnect Switch
SMC NVS3135-0309D Air Valve
IFM Efector EVT009 Ecomot 400 Cable 25M?LOT OF 4 -
ITT GH21ATXM Adjustable Differential Regulator
Agastat 2412AN Timing Relay
Jamesbury Stainless?Steel 1" Ball Valve?NEW
Essex Fluid Controls?TA0001X3W-3T-B 1/2"S.S. Thermal Shut-Off Valve
Allen Bradley Control Logix 1756-CNB/D Control Net Communications Bridge Module
Allen Bradley 1491-N122 0-30A Fuse Block?-Lot of 5
Honeywell 621-0007R?Reed Relay Module
Bosch 0822011015 Pneumatic Actuator Cylinder UNUSED
Pepperl + Fuchs OCT300-M1K-N2 VariKont MPhototelectric Sensor UNUSED
Square D 9007MS01S0500 Compact Enclosed?Limit Switch
Ross W6476B2401Z Directional Control Valve
SMC NVFS3100-3FZ Directional Control Valves-LOT OF 2
Ashcroft 0-400 PSI Q-8451 Pressure Gage?UNUSED
Dongan HC-0500-4100?Industrial Control
Century Type SP 1/4?HP Single Phase Electric Motor
Emerson 2450-9013 "M" Contactor Control?Board w/Aux 1 1/4 HP?
Boston Gear ADUTF-B?1/4 HP Motor
Appleton 1/2" T Form?35 Conduit - LOT OF 4
Drum Pump Rotary Model 3003
Ametek 80438SE Circuit Board
Honeywell Microswitch DTV6-2RN Enclosed?Switches LOT OF 2 -?
Allen Bradley 802PR-LAAA3 Proximity Switch-NO BOX
Telemecaniqe LB1LB03P Protection Module?
ifm / efector IME2015 Inductive Proximity Switch
Conbraco 2" Brass Check Valve
Eaton Cutler Hammer?G3P22K 60 Amp Circuit Breaker
Deltrol C35B 1" Fluid Brass Control Valve-LOT OF 4
Hayward TB2200ST 2"?CPVC TB VLV Valve
SICK Model: UE45-3S13D33 Safety Relay
Johnson Controls R-317-1 Air Flow Controller - Sealed
Chromalox ARMTS-2305?Immersion Heater
Killark FXCS-0B7 Push Button Enclosure
Omega 0135-FSW-43A Float Switch
Anvil 821 1" Forged?Steel Gate Valve
Micro Switch 4EX1-3?Snap Switches LOT OF?2
Honeywell Microswitch BAF1-2RN4-LH Snap?Switch
Square D 9065SD0-5 Thermal Overload Relay
Atlas Sound APF-15TU?Fire Protective Signaling Speaker
Fuji SC-E04/G Magnetic Contactor
Red Lion RPGC0061 Pulse Generator
Sola Basic P19FB100?.100 KVA 1 PH Transformer
Stonel PQ4XC2R-643 Valve Position Sensor?
Allen Bradley 871TM-DH5NE18-A2 ProximitySensors-LOT OF?2
Ferraz Shawmut TRS150R 150 Amp Fuse LOT?OF 2-
GE Reflex Photoelectric Relays 3S7505
Square D HU361 30 amp Heavy Duty SafetySwitch
Westinghouse FDB3030L Series C 30amp Circuit Breaker
Allen Bradley SLC500?Input Modules 1746-IV8 - LOT OF 2
Donaldson Duramax P179763 Hydraulic Filter
Jamesbury 2" Stainless Ball Valve
Banner Q45BB6 Series?Photoelectric Sensor
Telemecanique CAD50G7 Control Relay LOT?OF 2-
Square D 8501 D0-20?AC Control Relay
Mac 181B-594CABA Solenoid Valve
Square D 31063-409-57 Size 2 Magnet Coil?
Honeywell Microswitch LSXC4L Explosion Proof Precision Limit?Switch
Research Control 3/4" Stainless Control?Valve
Cutler Hammer C0150E2AFB Industrial Control Transformer
Siemens 3TF3400-0A Contactor
Rosemount 0444RL1U1A1NA Temperature Transmitter
Ashcroft T424T05030?Temperature Control?Regulator
Omron E6B2-CWZ1X Rotary Encoder
Hayward TB2150STE 1.5" CVPC TB Valve
DuoTect H3 Pressure?Switch - LOT OF?2
Honeywell R4075C Industrial RSG Control
Wika/Ametek 0-300psi Pressure Gauge
Asco SC8262G200 1/4"?Solenoid Valve
Victaulic 1-1/2" Aluminum Bronze Butterfly Valves LOT OF 2 -?
Clippard CINTI.0. Foot Pedal
SMC AV4000 1/2" Soft Start-Up Valve
Mac 56C-12-111JB 3/4" Solenoid Valve
Fireye 60-1466-2 Wiring Base
Allen Bradley 837 Temperature Control
TransData EMS 99 Energy Meter Electric Use Monitor
Foxboro 16A-BD Speed?Transmitter
acdc Electronics Power Supply 12N1.7?
UFS 816S3VP Headline SS Filter
Siemens Simatic S5 Interconnecting Cable?
Anvil 821 3/8" Forged Steel Gate Valves?NEW - LOT OF 3
Riley Panalarm Horn?Relay (Q1) 70-X16 WB-3
The Riley Co. Panalarm 70-X16 Relay w/ Panalarm WB-3
Advance REL2P17RHTP?120V Ballast LOT OF 5
Armstrong Redman DP-10 3/4" Solenoid Valve
Siemens MT0250G Control Voltage Transformer
John Crane Safematic?SG-PS Pressure Switch
United Abrasives / Sait 28003 Type 1 Bench Grinder Wheel
Square D D221N 30amp?General Duty SafetySwitch
GE CR115AS14 Vane Operated Limit Switch?
GE CR101Y 1HP Man Motor Starter Single Speed LOT OF 2 -
Condor HTAA-16-A+ Open Frame Linear Power Supply
WestCon 2471 Digital?Panel Meter
Mac 82A-BC Directional Valve
GE Fanuc SeriesOne IC610PRG105B Programmable Controller
Square D QO24L70RB 70A Circuit Breaker Load Center
Square D 8501C015V29?Power Relay LOT OF2-
Milwaukee 1.5" Brass?Gate Valve
Watts 777S 1-1/4" Bronze "Y" Strainer
Honeywell Meredian 31117481-501 Gel Filled Diffusion Reference Electrode
Asco 8353C33 3/4" Solenoid Valve-NO?BOX
Banner Multi-Beam SBD1 Scanner Block
Dwyer 1950-1 ExplosionProof Pressure Switch
Square D 9999A-1 Pushbutton Station For?Size 0 & 1
Rexnord / Falk Steelflex 1050T10 Coupling
Cutler Hammer BR24L125RP Main Lug LoadCenter
FNW FNW340E 1" PVC True union Ball Valve
Sporlan CG-052 Filter-Drier LOT OF 2-
Telemecanique DF6-AB10 Fuse Holders -LOT OF 12
Square D 31063-409-38 Size 2 Magnetic Coil
Allen Bradley 700-NA20 Type N Front DeckAssembly LOT OF 2-?
Square D CC 156.0 Overload Relay ThermalUnits -LOT OF 6
Banner Valu-Beam SM2A912LVQD AC Sensor
Telemecanique GV1-M07 Motor Circuit Breaker -SEALED
Allen Bradley 440P-MSLB22E Gaurd Master?Limit Switch
Allenair E-2-1/2 X 4-BC Air Cylinder
Telemecanique LR2D1508 Thermal Overload?
Danfoss BFPH Oil Pump
Honeywell C554A Cadmium Sulfide Flame Detector
Siemens Simatic S5 Memory Submodul 6ES5373-1AA41-Sealed?Bag
Square D FAL 34050amp Circuit Breaker
Master Pneumatic-Detroit Oil Removal Filter L28W-4
Parker 4F-PR4-VT-B?1/4" Plug Valves LOT OF 4
Omega CDCN-201 EC Controller
Acromag 1800 Input Module 4531-FQZ-V0-CNEW
Cosel K25AU-12 Power?Supply LOT OF 2
Milwaukee 1.5" 400WOG Brass Gate Valve
Appleton 3/4" LL Form 35 Conduit -?LOT OF 4
Allen Bradley 1771OG?TTL Output Module NICE SHAPE
Telemecanique MS01S05-00 Miniature LimitSwitch
Moore Industries TCA?Thermocouple Alarm?NEW
Banner SM2A912 Valu-Beam Sensor-NO BOX
Marsh / Bellofram 960-069-000 Pressure Regulator
Allen Bradley SLC 100 1745-E101 Programmable Controller Expansion Unit
Patlite SE-T Signal?Tower
Honeywell V4046C 1054 3/8" Pilot Gas Valve
Crouse Hinds D2CB11?30amp Explosion Proof Circuit Breaker
Herion Fluidtronic 82-863-51.8001 3/4" Valve
Apollo 77E 1 50 1" Ball Valve UNUSED
Ericson 1091-14-6 Ground Fault Circuit Interrupter
Fisher Scientific 06-662-47 Traceable Jumbo Display Timer
Henry Vogt API602 3/4" Forged Steel GateValve
Johnson Controls / PENN P70AB-2C Low Side Pressure Control
Allen Bradley GuardMaster MSR5T Safety Relay
1" PVC True union Ball Valves LOT OF 2-
Bell & Gossett FB-38?1/2" Brass Reducing?Valve
Fluke 80i-400 AC Current Probe
Square D 9036DG2 Open Tank Float Switch?
Festo DNC-80-200-PPV?Air Cylinder
Dodge Grid-Lign 1060T 10 Cover Assy 6DG-H
Red Lion Model SCD Digital Counter
K-TRON Agitator for?Feeder T65 (NEW)
Dayton 4HA33A Drum Pump
Square D Class 8501?Type XD Control Relay
Allen Bradley 802T-HT Oiltight Limit Switch
Flowserve 60113-G 1.5" Dura Seal
ITE Power Shield Solid State Trip Type SS
Acromag 1800 Input Module
Eurotherm 825S/4MA20?Control
Cutler-Hammer E57LBL18A2 Tubular Inductive Proximity Sensor?
Jamesbury 2" Brass Ball Valve
Henry Vogt API602 1/2" Forged Steel GateValve
Mean Well DR-120-24?Power Supply
Parker 06R213TC 3/8"?Regulators - LOT OF 2
Atlas Cylinders Series A A050TM201001HENB
Falk Steelflex 1100T20 Cover Assembly Coupling
