描述
國(guó)內(nèi)大多數(shù)繼電器負(fù)載能力,只標(biāo)最大純阻性負(fù)載,這給用戶在選擇繼電器負(fù)載時(shí),產(chǎn)生二種誤解,導(dǎo)致選型失誤。誤解之一是:用戶實(shí)用的往往不是純阻負(fù)載,而是感性的、燈的、電機(jī)的或容性的負(fù)載,負(fù)載大小等同或接近于阻性負(fù)載;誤解之二是:負(fù)載可以從低電平到額定負(fù)載,均能適應(yīng)。應(yīng)該指出,能可靠轉(zhuǎn)換10A阻性負(fù)載的繼電器,不可轉(zhuǎn)換10A的感性負(fù)載,不一定能可靠轉(zhuǎn)換10mA的負(fù)載。因?yàn)椴煌再|(zhì)負(fù)載條件下的電接觸失效機(jī)理是截然不同的。應(yīng)該強(qiáng)調(diào),觸點(diǎn)故障是繼電器失效的主要原因。正確理解觸點(diǎn)在不同負(fù)載類型、不同負(fù)載大小條件的電接觸特性、失效現(xiàn)象及失效機(jī)理,統(tǒng)一制造方與用戶的認(rèn)識(shí),對(duì)提高繼電器工作的可靠性,尤為重要。制造廠應(yīng)改進(jìn)觸點(diǎn)負(fù)載的標(biāo)識(shí)、內(nèi)容,對(duì)不同負(fù)載類型應(yīng)分別標(biāo)注。
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主營(yíng):世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國(guó)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(guó)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(chǎng)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(hào)處理、數(shù)
據(jù)通信及處理等。Invensys Triconex:冗余容錯(cuò)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(cuò)控制器。
⑨Siemens(西門子):Siemens MOORE,Siemens Simatic C1,Siemens數(shù)控系統(tǒng)等。
⑩Bosch Rexroth(博世力士樂):Indramat,I/O模塊,PLC控制器,驅(qū)動(dòng)模塊等。
◆Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
Kepco MPS 620M Multiple Output DC Power Supply 20V/1A
Kepco Bit 488-D Program Card
Kepco OPS-500 0-500V 0-40 mA Operational Power Supply
Kepco JQE15-12MVP DC POWER SUPPLY 0-15V, 12A
KEPCO ATE 75-8M POWER SUPPLY
KEPCO 0-40V DIGITAL METERED VARIABLE AC-DC POWER SUPPLY
KEPCO 0-150V VARIABLE METERED REGULATED DC POWER SUPPLY
KEPCO USA 0-75V@ 0-3A REGULATED METERED DC POWER SUPPLY
KEPCO MSK 40-2.5M 0-40V@2.5A VARIABLE ACDC POWER SUPPLY
KEPCO ABC425M 0-425V@0-50MA TUBE AUDIO DC POWER SUPPLY
KEPCO ATE-75-3M 0-75V @ 0-3A REGULATED DC POWER SUPPLY
KEPCO 600 150 6.3 DC VOLT TUBE POWER SUPPLY AMP TEST
Kepco Power Supply Model OPS 500B
Kepco CPS6-45ME DC Power Supply 6V, 45A
KEPCO MPS 620M MULTIPLE OUTPUT POWER SUPPLY
TDK Kepco DC Power Supply RAX 24-12RE RAX24-12K
Kepco KS36-10M Regulated Power Supply 0-36 V 10 A
Kepco ATE 36-15M DC Power Supply 0-36V 0-15A TESTED
KEPCO ATE25-2M DC POWER: 25V/2A/50W RACK – Untested
Kepco JQE100-1MVP Quarter Rack DC Power Supply, 100V, 1
Kepco TDK RAX48-30K DC Power Supply 48V-30A
Kepco SM36-5AM 0-36V 0-5A DC Power Supply
KEPCO power supply plug in MST 25-8M 25V 8A
Kepco Model: PAT 72-0.3 R Power Supply
TDK KEPCO RAX24-12K 24V 12A POWER SUPPLY 300W
L65214 Hemig Engineering Kepco Test Point System
Kepco ATE 36-15M DC Power Supply 0-36V 0-15A TESTED
KEPCO TRIPLE OUTPUT VARIABLE REGULATED DC POWER SUPPLY
KEPCO MPS620M TRIPLE 3 OUTPUT VARIABLE DC POWER SUPPLY
KEPCO ATE 15-6M 0-15V@0-6A VARIABLE LAB DC POWER SUPPLY
KEPCO ATE-6-10M 0-6V@0-10A VARIABLE LAB DC POWER SUPPLY
Kepco CK36-1.5M Regulated DC Power Supply C-1
Kepco JQE6-45M DC POWER SUPPLY 0-6V,45A
Kepco MPS620M +20V, -20V, 1A & 6V 5A Triple Output DC
Kepco KS8-25M Regulated DC Power Supply
KEPCO RAX-12-25K NSPP RAX1225K
KEPCO RAX 24-12K DC POWER SUPPLY 24V 12AMP
KEPCO 24 VOLT TO 12 VOLT DC-DC CONVERTER
KEPCO RTW15-20KC NSPP RTW1520KC
KEPCO RACK MOUNT, WITH 8 HOT SWAP POWER SUPPLIES. 24V –
Kepco MPS620M +20V, -20V, 1A & 6V 5A Triple Output DC
Kepco SN 488-B Programming Card NIB
Kepco ABC200M Power Supply – Parts/Repair
Kepco ABC30-0.3M Regulated DC – Lot of 2 – Untested
Kepco MPS620M Multiple Output Power Supply 0-20V 5A
KEPCO POWER SUPPLY FAW15-6.6K **NEW**
Kepco TDK Power Supply RMD24-B-110
Kepco JQE25-10MVP Power Manager – Untested
KEPCO JQE55-10 60V-10AMPs POWER SUPPLY.
KEPCO POWER SUPPLY ATE 6-5M – free shipping
Kepco CK36-1.5/DC Regulated Power Supplies rated 36 V
Kepco JQE100-1M Quarter Rack DC Power Supply, 100V, 1A,
Kepco JQE55-2MVP Quarter Rack DC Power Supply, 55V, 2A,
Kepco ATE55-2M POWER SUPPLY Refurbished
KEPCO Power supply RAX48-3, 6K Lots of 3
Kepco ATE 6-10M Power Supply 0-6VDC, 0-10A
One-day shipping available