描述
運行中的交流接觸器應(yīng)定期檢查,檢查周期應(yīng)視具體的工作條件而定。檢查的項目如下:
1)檢查最大負荷電流是否超過交流接觸器的額定值;
2)檢查交流接觸器的分、合閘信號是否與電路狀態(tài)相符;
3)監(jiān)聽接觸器內(nèi)有無放電聲以及電磁系統(tǒng)有無過大的噪聲和過熱現(xiàn)象;
4)檢查觸頭系統(tǒng)和連接點有無過熱現(xiàn)象,輔助觸頭有無燒蝕現(xiàn)象;檢修觸頭系統(tǒng)時,要用細挫或紉紗布打光接觸面,保持觸頭原有形狀,調(diào)整接觸面及接觸壓力(壓簧失效者應(yīng)更換),以保持三相同時接觸,觸頭過度燒損的應(yīng)更換;
5)檢查滅弧罩有無松動或裂損現(xiàn)象,如有損壞應(yīng)立即更換或修復(fù);
6)檢查吸合鐵心的接觸表面是否光潔,短路環(huán)是否斷裂或過度氧化,吸引線圈有無過熱現(xiàn)象;
7)接觸器周圍的環(huán)境有無變化,有無不利于正常運行的情況,如有無導(dǎo)電塵埃、有無過大的震動、有無通風(fēng)不良等。
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主營:世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國AB)系列產(chǎn)品》
②Schneider(施耐德電氣)系列產(chǎn)品》
③General electric(通用電氣)系列產(chǎn)品》
④Westinghouse(美國西屋)系列產(chǎn)品》
⑤SIEMENS(西門子系列產(chǎn)品)》
⑥銷售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。
⑧Invensys Foxboro(??怂共_):I/A Series系統(tǒng),F(xiàn)BM(現(xiàn)場輸入/輸出模塊)
順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號處理、數(shù)
據(jù)通信及處理等。Invensys Triconex:冗余容錯控制系統(tǒng)、基于三重模件冗余(TMR)
結(jié)構(gòu)的zui現(xiàn)代化的容錯控制器。
⑨Siemens(西門子):Siemens MOORE,Siemens Simatic C1,Siemens數(shù)控系統(tǒng)等。
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◆Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
Fluke 199B ScopeMeter HandHeld 200Mhz Oscilloscope 199
Trilithic Guardian RSVP 2 ReversePath Tester RSVP2 CATV
Fluke Networks MicroScanner 2 Network Cable Tester
Trilithic TR-2 CATV Signal Level Meter 46 – 864 MHz TR2
Sadelco DisplayMax Jr. 1500 Signal Level CATV Meter Jr
Fluke 572 Handheld Infrared Thermometer IR
Fluke DSP-FTA440 MM Fiber Gigabit DSP 4000 4300 FTA440
Wavetek Acterna JDSU MS1400 CATV Signal Meter MS-1400
Fluke Microtest CertiFiber Multimode Fiber Tester /Cert
TTC JDSU Acterna 2000 Test Pad TTC 2230 E1 Data T-BERD
Fluke Networks 990DSL CopperPro Tester 990 DSL
Sadelco MiniMax M800 Signal Level CATV Meter Mini Max
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Wavetek Ideal LT8600 MM Fiber Cable Tester Cat5e Cat6
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VeEX VePAL TX150 Handheld SONET Tester TX 150 TX-150
JDSU WWG ANT-20SE Advanced Network Tester SDH ANT-20
Fluke NetTool 10/100 Network Connectivity Tester
LEVITON WESTOVER 200x Fiber Optic Microscope
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Fluke Networks DSP-PCI-6S For DSP-4000 DSP-4300 DSP-PCI
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Sunrise Telecom SunSet MTT ADSL Module SSxDSL-15 SSxDSL
Acterna 2109 Copper Analyzer Module For TestPad 2000
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Datacom Textron LANcat Vx 100 MHz Cat5 Certifier Tester
Agilent Wirescope PRO SM Fiber Optic SmartPobes N2647SM
GN Nettest Laser Precision LP-5025 A50 SM Loss Test Set
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Fluke 63 Handheld Infrared Thermometer IR
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EXFO FOT-20A Fiber Power Meter FOT-20 FOT-22AX FOT
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Acterna JDSU TTC FST-2000 TestPad MainFrame FST 2000
Westover FM-C400 Fiber Scope FiberScope FM C400 FMC400
Fluke DSP-FTA410 MM Fiber 4 DSP 4000 4100 4300 FTA410
AFL Noyes MLP 4-2 MM Light Pack Fiber Loss Test Set PM
Noyes AFL OFS300-200C Fiber Scope FiberScope OFS300 OFS
Agilent Wirescope 155 Cat5 Cat5e Cable Certifier Tester
TTC 2000 Test Pad 2357 DSL Broadband Services Module
Wavetek Ideal LT8155 Cable MM Fiber Certifier Cat5e LT
Fluke 196B ScopeMeter Oscilloscope Scope Meter 196
Tektronix RFM151 SignalScout Signal CATV Meter RFM 151
Fluke DSP-FTA430 SM Fiber Modules DSP 4000 4300 FTA430
AFL Noyes MM Fiber Loss Test Set OPM5 OLS1 OPM OLS
Fluke Networks OPV-GIG OptiView PRO GIGABIT OPV GIG
Agilent SM 1310nm Fiber SmartProbe 4 Wirescope 155 350
Agilent MM 850nm Fiber SmartProbe 4 Wirescope 155 350
Fluke Microtest PentaScanner with Super Injector Cat5
Fluke Networks FT354 Fiber Probe For FT330 FT350 FT400
Fluke Networks Optiview Removeable Hard Drive OPV-RHD
Fluke OPV-PRO OptiView PRO Network Analyzer Console
Noyes TURBOTEST 500 OLT-504 FC SM 1310 1550 Fiber Test
Fluke OPV-GIG OptiView PRO GIGABIT W/ Console Software
Fluke OptiView Network Inspector Software NIS-UNL
Comarco CWT X25 iDEN Cellular Network Optimization Tool
Fluke Optiview Reporter Ethernet NetworkSoftware OV-RPT
Anritsu MW910A SM Fiber OTDR MH937A MH955A MZ146A
3M Fibrlok 2670 Multi Fiber Optical Splicing System
3M Fibrlok 2601 Multi Fiber Splice Preparation Kit