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EHD3020
- 更新时间:2025-03-17
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EHD3020
EHD3020
EHD3020
WESTINGHOUSE LA3300 CIRCUIT BREAKERCLEANED TESTED
Westinghouse LA3250 LA3600F w/ 250 Amp Trip Circuit Breaker Surplus
WESTINGHOUSE LA322 CIRCUIT BREAKERCLEANEDTESTED
WESTINGHOUSE LA317 CIRCUIT BREAKERCLEANEDTESTED
WESTINGHOUSE LA2600F USPP LA2600F
WESTINGHOUSE LA2600 USPP LA2600
WESTINGHOUSE LA2400F USPP LA2400F
WESTINGHOUSE LA LA3400PRF 3 POLE 400 AMP TRIP BREAKER la3400 NO COVER
WESTINGHOUSE LA LA3400PRF 3 POLE 400 AMP TRIP BREAKER la3400
WESTINGHOUSE LA LA3400PRF 3 POLE 300 AMP TRIP BREAKER
WESTINGHOUSE LA LA3400PRF 3 POLE 250 AMP TRIP BREAKER
WESTINGHOUSE LA LA3400PRF 3 POLE 225 AMP TRIP BREAKER
WESTINGHOUSE LA LA3400PRF 3 POLE 175 AMP TRIP BREAKER
WESTINGHOUSE LA LA3400PRF 3 POLE 175 AMP TRIP BREAKER
WESTINGHOUSE LA LA3400PF 3 POLE 400 AMP TRIP BREAKER
WESTINGHOUSE LA LA3400PF 3 POLE 125 AMP TRIP BREAKER
WESTINGHOUSE LA LA3400F 3 POLE 250 AMP TRIP BREAKER
Westinghouse LA Frame 3 Pole 600-500 Amp 600VAC LA3600F
WESTINGHOUSE LA 2 pole 600 amp LA2600S LA2600 Circuit Breaker MISSING LUG COVER
WESTINGHOUSE L-60 USPP L60
WESTINGHOUSE L-60 NSFP L60
Westinghouse L-60 Electrical Interlock 557D
Westinghouse L-60 Electrical Interlock 557D
WESTINGHOUSE L-56E NSFP L56E
WESTINGHOUSE L-56D USPP L56D
WESTINGHOUSE L-56D NSPP L56D
WESTINGHOUSE L-56D NSFP L56D
WESTINGHOUSE L-56C USPP L56C
WESTINGHOUSE L-56C NSFP L56C
WESTINGHOUSE L56C 2 NC POLES. T3-6.
WESTINGHOUSE L-56B USPP L56B
WESTINGHOUSE L-56B NSPP L56B
WESTINGHOUSE L-56B NSFP L56B
WESTINGHOUSE L-56B AUXILIARY CONTACT N1-3
Westinghouse L-56 electrical interlock S NO 2609D01G01
Westinghouse L-56 Electircal Interlock Universal Poles 1 NC NIB
WESTINGHOUSE L55 USPP L55
WESTINGHOUSE L55 NSFP L55
WESTINGHOUSE L-55 MOTOR STARTER INTERLOCK
WESTINGHOUSE L-54 MOTOR STARTER INTERLOCK
WESTINGHOUSE L53-4-5 USPP L5345
WESTINGHOUSE L53-4-5 NSPP L5345
WESTINGHOUSE L53-4-5 NSFP L5345
WESTINGHOUSE L53 NSFP L53
WESTINGHOUSE L-52 USPP L52
WESTINGHOUSE L-51 USPP L51
WESTINGHOUSE L-405544-J USPP L405544J
Westinghouse L2046NV LCD MONITOR CAPACITOR KITALL SUNCON
Westinghouse L1975NW LCD MONITOR CAPACITOR KITALL SUNCON
Westinghouse L1975N LCD MONITOR CAPACITOR KITALL SUNCON
Westinghouse L/A202K4CAM Latched Lighting Contactor STR1600
Westinghouse L Frame 600 amp Trip 400 Shunt Trip
Westinghouse L Frame 600 amp circuit breaker 400 amp Trip CHIPPED
Westinghouse L Frame 150 amp Trip 400 breaker
WESTINGHOUSE KX251 USPP KX251
Westinghouse KX-241Style 2140A14H64
WESTINGHOUSE KX-241/0-1500 USPP KX24101500
WESTINGHOUSE KX-241 USPP KX241
WESTINGHOUSE KX-241 100 PSI
WESTINGHOUSE KVA 1F0990 TRANSFORMER
WESTINGHOUSE KT-5 CURRENT TRANSFORMER 4005 A AMPS 5KV INSULATION 46023
WESTINGHOUSE KT3400T 400A 3P -1 YEAR RETURN POLICY- NIB
Westinghouse KT3300T Thermal Magnetic Trip Unit 300 Amps
Westinghouse KT-3175-T USPP KT3175T THERMAL MAGNETIC CIRCUIT BREAKER
WESTINGHOUSE KT3175T NSFP KT3175T
WESTINGHOUSE KT3150T USPP KT3150T
WESTINGHOUSE KT2400T 400A 2P -1 YR RETURN POLICY- NIB
WESTINGHOUSE KT2400T 400A 2P -1 YR RETURN POLICY- NIB
WESTINGHOUSE KT-15 CURRENT TRANSFORMER 2005A AMP 15KV 101 RATIO 45608
WESTINGHOUSE KS-269 USPP KS269
WESTINGHOUSE KL-949-20 USPP KL94920
WESTINGHOUSE KL3100 USPP KL3100
WESTINGHOUSE KIN-60 CURRENT TRANSFORMER 5/200 7524A68G10 WESTINGHOUSE E10
WESTINGHOUSE KIN-60 CURRENT TRANSFORMER 5/200 7524A68G10 WESTINGHOUSE E10
WESTINGHOUSE KIN-60 CURRENT TRANSFORMER 5/200 7524A68G10 WESTINGHOUSE E10
Westinghouse K-Frame 225A AB DE-ION Breaker 3 Pole 225 Amp 1773619 KL36225
WESTINGHOUSE KES2002 USPP KES2002
WESTINGHOUSE KE724501 USPP KE724501
WESTINGHOUSE KDB3400W USPP KDB3400W
Westinghouse KDB3400W Industrial Circuit Breaker 600V 400A 3P with KT3400T
Westinghouse KDB3300W Circuit Breaker 300 amp 600V Aux switch A1X3PK Guaranteed
Westinghouse KDB3250 Series C Circuit Breaker 250 AMP 600 VAC KDB 35 K
Westinghouse KDB3250 Series C Circuit Breaker 250 AMP 600 VAC KDB 35 K
Westinghouse KDB3250 Series C Circuit Breaker 250 AMP 600 VAC KDB 35 K
Westinghouse KDB KDB3400w 400 amp 3 pole Circuit Breaker RED
Westinghouse KDB KDB3350w 350 amp 3 pole Breaker
Westinghouse KDB KDB3350w 350 amp 3 pole Breaker
WESTINGHOUSE KD-3400-KW USPP KD3400KW
Westinghouse KD3400KW Series C 400 Amp.5892
WESTINGHOUSE KD-3400-KW NSFP KD3400KW
WESTINGHOUSE KD3400FS 400 AMP 3 POLE CIRCUIT BREAKER
WESTINGHOUSE KD3400F USPP KD3400F
Westinghouse KD3400F KD3400 400A /w 150A Trip Breaker
Westinghouse KD3400F Industrial Circuit Breaker 600V 400A 3P with KT3350T
Westinghouse KD3400F Industrial Circuit Breaker 400A 2P
Westinghouse KD3400F Circuit Breaker With Disconnect Handle 400 Amp
WESTINGHOUSE KD3400F CIRCUIT BREAKER 4000A 600VAC
Westinghouse KD3400F Circuit Breaker 400 amp trip Nice pullout Guaranteed
Westinghouse KD3400F 480VAC 400A Circuit Breaker
Westinghouse KD3400F 400A Circuit Breaker with Lugs
WESTINGHOUSE KD3400F 3 POLE CIRCUIT BREAKER 400 AMP
Westinghouse KD2400F SER C
Westinghouse KD2400F SER C
WESTINGHOUSE KD2400F INDUSTRIAL CIRCUIT BREAKER
WESTINGHOUSE KD2400F INDUSTRIAL CIRCUIT BREAKER
WESTINGHOUSE KD2400F CIRCUIT BREAKER 400 AMP 600VAC
WESTINGHOUSE KD2225 225 AMP 2 POLE CIRCUIT BREAKER
WESTINGHOUSE KD KD3400F 3 POLE 250 AMP TRIP CIRCUIT BREAKER 3250F CUTLER HAMMER
WESTINGHOUSE KD 43K KD3400F 400 AMP 600VAC 3 POLE
WESTINGHOUSE KC13358IT3 NSFP KC13358IT3
4、 变频器运行时对PLC干扰应注意的问题
变频器运行时会对周围电气设备(包括P L C )产生较强的电磁干扰,同时变频器主电路断路器等开关器件动作时也会影响PLC 的正常工作。为防止变频器运行时对PLC干扰,变频器与P L C 相连接时应该注意以下几点:
(1)对PLC 本身应按规定的接线标准和接地条件进行接地,而且应注意避免和变频器使用共同的接地线,且在接地时使二者尽可能分开。
(2)当电源电压波动大,谐波成分多时,为抑制谐波干扰,应在PLC 的电源模块及输入/ 输出模块的电源线上接入噪音滤波器或者隔离变压器。如果干扰仍严重,应考虑在变频器主回路中接入电抗器、变压器和噪音滤波器等措施。
(3)变频器和P L C 安装在同一电控柜时,应尽可能使与变频器有关的电缆和与PLC 有关的电缆分开安装,尤其是连接变频器的强电电缆与连接PLC 的弱电电缆更要分开安装。
4 结束语
变频器和P L C 间连接问题,涉及到数字量信号连接、模拟量信号连接以及避免干扰应注意的问题;在实际应用中,两者间的连接还涉及到用弱电信号控制强电的问题。因此,应引起重视,避免干扰造成变频器、PLC 的误动作;避免连接不当造成PLC 或变频器的损坏。
如果购买单位的在质保日期一年内发现有质量缺陷的,可以进行一个免费维修或更换。
SIEMENS 6SE6-440-2AD31-1CA1 USPP 6SE64402AD311CA1
SIEMENS 6SE9-211-5CA40 USPP 6SE92115CA40
SIEMENS 6SN1118-1NH00-0AA2 USPP 6SN11181NH000AA2
SIEMENS 7ML5431-0BC20-0DA1 NSPP 7ML54310BC200DA1
SIEMENS A1-16-100-504-ISS9 NSPP A116100504ISS9
SIEMENS MTA USPP MTA
SIEMENS S0NES004 USPP S0NES004
SIEMENS SED2-1.5/32X NSFP SED21532X
SOUTHCON IND CONTROLS PWM USPP PWM
SPANG E65261214 USPP E65261214
SPANG FC7G5-A-2600A10 USPP FC7G5A2600A10
SQUARE D 5S40F USPP 5S40F
SQUARE D 8539-SCG-41V02S NSFP 8539SCG41V02S
SQUARE D 8539-SCG42S8-V02S USPP 8539SCG42S8V02S
SQUARE D GFM100FA NSFP GFM100FA
SQUARE D GFM250 NSFP GFM250
SQUARE D H363NDS USPP H363NDS
SQUARE D HLL36125 USPP HLL36125
SQUARE D IF36070 NSFP IF36070
SQUARE D KC-34125 NSPP KC34125
SQUARE D KHL36000M1380 USPP KHL36000M1380
SQUARE D LA-36400 NSFP LA36400
SST 5136-SD-ISA NSFP 5136SDISA
STI 70158-1148 NSFP 701581148
STI MC47-20-1125-R USPP MC47201125R
STI MS4348BR USPP MS4348BR
SYMAX 8020-SCP-401 NSPP 8020SCP401
SYMBOL TECHNOLOGIES PDT-8146 NSFP PDT8146
TB WOODS WFC2010-0C USPP WFC20100C
TB WOODS WFC4002-0CHT USPP WFC40020CHT
TECHNIQUIP 8SG-CM USPP 8SGCM
TELEMECANIQUE TSX-AEY-1614 USPP TSXAEY1614
TELEMECANIQUE TSX-P474-11 USPP TSXP47411
TELEMECANIQUE TSX-RAM-32-8 USPP TSXRAM328
TEXAS INSTRUMENTS PLC 500-5022 NSFP 5005022
TEXAS INSTRUMENTS PLC 500-5052 USPP 5005052
TEXAS INSTRUMENTS PLC 505-7012A NSPP 5057012A
TEXAS INSTRUMENTS PLC 560-2136 USPP 5602136
TEXAS INSTRUMENTS PLC PM550-302 USPP PM550302
TEXTRON C062050-BANRB-R NSPP C062050BANRBR
TEXTRON C062050-BANRC NSPP C062050BANRC
THOMAS & BETTS LBD10900-G USPP LBD10900G
THOMSON INDUSTRIES DT115-050-0-RM115-80 USPP DT1150500RM11580
TOSHIBA VFS9-4150PL-WN USPP VFS94150PLWN
TOTAL CONTROL PRODUCTS QPI-2D100-L2P-F USPP QPI2D100L2PF
UNIPRO C-23.050052X-01883 NSFP C23050052X01883
UNIPRO C-23.050052X-02248 NSFP C23050052X02248
VICKERS DG4S4-013C-H-50 USPP DG4S4013CH50
WARD LEONARD 5DP3-20100 USPP 5DP320100
WEBER SCREWDRIVING WSG-90 USPP WSG90
WESTINGHOUSE 1640A19G02 USPP 1640A19G02
WESTINGHOUSE 277A454G01 NSFP 277A454G01
WESTINGHOUSE A206D3MABZ5 NSPP A206D3MABZ5
WESTINGHOUSE A224S0AAX-Z7U NSFP A224SOAAXZ7U
WESTINGHOUSE LA3400FS NSFP LA3400FS
WINSMITH 263MWTS4200GEK USPP 263MWTS4200GEK
XYCOM 143635 USPP 143635
XYCOM 9460-513316-STN-T-F-A NSPP 9460513316STNTFA
YAMATAKE 30733155-501 NSFP 30733155501
YASKAWA ELECTRIC CACR-SR02AB2ER NSFP CACRSR02AB2ER
YASKAWA ELECTRIC CACR-SR03AAA2AH USPP CACRSR03AAA2AH
YASKAWA ELECTRIC CIMR-G3A45P5 NSPP CIMRG3A45P5
YASKAWA ELECTRIC CIMR-G5M27P5 USPP CIMRG5M27P5
YASKAWA ELECTRIC CMPC-CM34C-3 USPP CMPCCM34C3
YASKAWA ELECTRIC DDSCR-GL20 USPP DDSCRGL20
YASKAWA ELECTRIC JAMSC-C8110 USPP JAMSCC8110
YASKAWA ELECTRIC JANCD-SP17B NSFP JANCDSP17B
YASKAWA ELECTRIC JANCD-SV03B NSFP JANCDSV03B
YASKAWA ELECTRIC SGDH-30AE USPP SGDH30AE
YASKAWA ELECTRIC SGMSH-30D2A61 USPP SGMSH30D2A61
YOKOGAWA YMA11-A1AA NSPP YMA11A1AA