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熔断器和热继电器在电气线路中的使用


在电动机控制接线中,主电路中装有熔断器,为什么还要加装热继电器?它们各起何作用,能否互相代替?而在电热及照明线路中,为什么只装熔断器而不装热继电器?

     :熔断器在电气线路中主要起短路保护和严重过载保护作用,而热继电器主要用于过载保护.两者不能互为代用,但可以互为补充.如果用熔断器作电动机的过载保护,为了防止电动机在启动过程中熔断器熔断,熔断器熔体的额定电流一般应取电动机额定电流的2. 5~3倍,这样即使电动机长时间过负荷50%,熔断器也不会熔断,而电动机可能因长时间过负荷而烧坏.所以不能用熔断器作过负载保护.而热继电器是利用电流的热效应来工作的,由于热惯性的影响,尽管发生短路时电流很大,也不可能使热继电器立即动作,这样就延长了短路故障的影响时间,对供电系统及用电设备会造成危害.所以也不能用热继电器作为短路保护.

对于电热及照明设备,由于负载的性质不同于电动机的拖动负载,一般来说,它们不会出现过负载现象,所以,一般不装备热继电器,而只装备熔断器,主要起短路保护作用.

Baumueller FGNF132 MV 

BAUMüLLER BM4424-ST0-01200-03 

BUM60-30/60-54-B-001 BUM60-VC-0C-0050 0-390VAC 0-300HZ  ID26667

Baumuller AC Servo Drive - BUG20-120-30-B-000 - In 

BKF12/030/400-604000003 ART.NR. 231553 0-400V 30A  ID24061

SERVO POWER UNIT BUS624-45/67-54-0-000 BUS6-VC-A0-0013  ID20476

BAUMULLER SERVOMOTOR / Typ nr : VDOKFF 160 S46

Baumüller BUG 2-60-30-B-003 

BUM60-03/06-54-B-001 BUM60-VC-A0-0001 0-390VAC 3A 0-300HZ ID24034

BAUMüLLER BM4413-ST1-02208-0308 

BAUMüLLER, BKF12/600/400/604000004, A-Nr: 228041

DSV6 - OSAI AB - / KONTROLLER BAUMüLLER 

BAUMULLER   BUS3-15/30-30-004

Baumüller BKF12/100/400-604000003 DC 

Baumüller BKF12/150/400-604000003 DC 

Baumüller  BUM62-075/97,5-54-0-000 BUM62

Baumüller  BKH 4-15-6-102

Baumüller  BKF12/150/400-604000003 

Baumüller  BKF12/250/400-201000002 BKF 12/250/400

BAUMüLLER BKF12/70/400-2001 BKF12/70/400 MPG-2.85005 70A 

BAUMULLER DSOG 71-K REPAIR 

BAUMüLLER BUM62-075/97,5-54-0-000 BUS624-38/55 

Baumueller GNAF 160 KV or GNAF160KV 

Baumüller BKF 12/070/400-604000000 

Baumüller BKF 12/100/400-604000000 

BAUMüLLER BM4432-SI0-01200-03 

BUM60-03/06-54-B-001 BUM60-VC-A0-0022 0-390VAC 3A 0-300HZ BAUMULLER ID24824

BKD6/100/460-204000000 460VDC 100A BAUMULLER ID19785

BUM62-075/97.5-54-0-000 BUS6-VC-A0-0013 BAUMULLER ID15803

BKF12-100-400-3010105  BAUMULLER 12M WARRANTY ID16001

Baumüller BKF12/150/400-604000003 DC 

Baumüller BKF12/050/400-604000003 

BKF12/150/400-2009  BAUMULLER ID8759

Baumüller BKF-/BKD 7000 BKF 12/0030/420-520/70300000000 

Baumüller BKF-/BKD 7000 BKF 12/0100/420-520/703000000 

Baumüller Leistungsmodul BUS624-45/67-54-0-003 BUS 624

BKF12/150/400-604000003 DC DRIVE 150A BAUMULLER ID2773

Baumüller  BM4422-SI1-21200-03 

Baumüller  (Typ:BKF12/30/400-2002) (D.334)

Baumüller  Typ: BKF12 /380/400-3010001 

Baumüller GSF45LB 4000min-1 EMCO VMC200 VMC100 Emco Turn 242 ET242

Baumüller BKF 12/100/400-3010001 

Baumüller  BKF12/100/400-604000003 DC 

Baumüller  BKF 12/120/400-2002

Baumüller  BKF 12/70/400-604000000

Baumüller  BKF12/100/400-604000002

Baumüller  BKF 12/100/400-604000000

Baumüller  BKF12/100/400-604000003






Baumüller BKH-4-40-6-102 

BKF12/200/520-2002  BAUMULLER ID8201

BKF12/100/400-3010005  ID16004

Baumüller  BUS 3-10/20-31-010

BAUMüLLER, BKF12/100/400/604000004, A-Nr: 228670

Baumüller BKF/BKD 7000 BKF12/0140/420-520-70300000002 

BUM60-08/16-54-B-001  ID3754

BUM60-12/24-54-B-001 BUM60-VC-0A-0001 0-390VAC 12A 0-300HZ  ID3653

Baumüller BUM60-30/60-31-B-000 + BUM60-A-SM-0100-L

Baumüller BUM25-30/60-30-001

DSO 71-M 20315221 148VK0281072 

Baumüller  BKF12/200/400-2002 

Baumüller   DS100-S 

Baumuller AC Servo Drive - BUG2-60-30-B-003 

BUC2-G60/60-34-001-00 

Baumüller BKF12/070/400-604000003 

BKF12/100/400-3010001  12M WARRANTY ID16453

BKF12/120/400-2002  ID16110

BAUMüLLER BUM618-12/18-31-R-0000-A010-SM 

Baumüller GNAF132MV 

Baumüller BUS20-80/135-30-001 

Baumüller  DSG 56-L RE-21-1-A05 Netzfilter BFN 3-1-16 

Baumüller BKF12/040/400-604000003 DC 

Baumüller  BUG622-15/22-54-0-000 BUS6-VC-EC-0016

Baumüller   DS100S35 

Baumüller  BUS622-15/22-54-0-000 BUS6-E-SM-0012-B010-0000

Baumüller  BUS622-15/22-54-0-000 BUS6-VC-EC-0016

Baumüller  BUG622-15/22-54-0-000

Baumüller  BKF 12/30/400-604000000

Baumüller BUC2-90/90-62-001-01 

Baumüller BUS624-38/55-54-0 Bus6-E-SM-0012-B010-0000

Baumüller BKF12/030/400-604000003 

Baumüller BUM60-A-SM-0100-L / 232968 

Baumüller  BUS20-120-30-B-000 183

Baumüller VDIMFF 100 M-3 17-9 kW 

Baumuller AC Servo Drive - BUS21-30/60-30-001 - In 

Baumuller AC Servo Drive - BUS21-30/60-31-020 - In 

BUS21-30/60-31-020 0-200V 30A 0-300HZ  ID30372

BUG2-60-31-B-010  ID4598

BUM60-VC-0C-0074 BUM60-03/06-54-B-000 0-390VAC 0-300HZ  ID29764

PP3189 Baumüller BUS 6V BUM60B-12/24-54-B-005 bum60b-vc-ac-1103 30A

DSC100 M64U10-8-GDZ TENV 5.7KW 1000RPM 485V 83.3HZ  ID12286

BUS624-45/67-54-0-000 BUS6-VC-A0-0016  ID15802

SERVOMOTOR DSG71-M  4000MIN-1  ID23508

DSOG100-S BR. 15.7KW 3000MIN-1 148VK0281072  ID9549

Baumüller Servodrive BUM60-VC-A0-0036  BUM60-03/06-54-B-001

Baumüller DS45-L 3000min-1

Baumüller  BKF12/150/400-604000003 BKF12150400-60400000

Baumüller BUG623-56-54-E-000 

Baumüller BUS623-20/30-54-0-000 






Baumüller BUS624-38/55-54-0-005 

Baumüller  BUM60-VC-A0-0001 

Baumüller  BUG622-28-54-E-013 

BAUMULLER  BUS21-22/45-30-001 

Baumüller  BUS623-20/30-54-0-202 

Baumüller BKF12/030/400-604000003 DC

Baumüller Servo Motor DS100-S 

Baumüller BUS622-15/22-54-0 + BUS6-VC-AE-0047 

Baumüller BKF12/850/400-604000003 

Baumüller BUS622-15/22-54-0-000 Leist.+BUS6-E-SM-0012-A009-0000 

BUG260-30-B-004  220VAC 50/60HZ 300VDC 60A BAUMULLER ID25198

Baumüller VD0KFF 132 S43 Servomotor Motor 18,6 kW 428

BUS3-10/20-30-004,  BAUMULLER 

Baumuller AC Servo Drive-BUM60-A-SM-0100-L W/ BUM60-30/60-31-B-00-In 

BUS622-15/22-54-0-003 SERVO DRIVE 15A BAUMULLER ID2959

BUS21-22/45-31-020 0-200V 22A 0-300HZ BAUMULLER 12M WARRANTY ID30373

Baumuller AC  - BUS20-80/135-31-021 - In 

Baumuller AC  - BUS20-80/135-30-001 - In 

Baumüller  BKF 12/30/400-604000000

Baumüller BKF 12/120/400

Baumüller DSOG100-K-35-R-K 

Baumüller Motor DS 71-K35-UL Art 326925

Baumüller  BUS621-05/7,5-54-0-000 BUS6-E-SM-0012-A011-000

Baumüller BUS621-05/7,5-54-O-200 

Baumüller BUS621-05/7.5-54-0-003

Baumüller BUS621-10/15-54-0-000 

Baumüller BUS624-38/55-54-0 + BUS6-E-SM-0012-B010-0000 -

BAUMüLLER  BM4414-ST0-01200-03 

Baumüller  BUG2-60-30-EK-003

BM4434-SI0-01200-03 3003-3-022-017 379638 BAUMULLER ID7187

Baumüller BUS61-30/45-54-0-00-VC-AC-1069 

PP3190 Baumüller BUS 6V BUM60B-12/24-54-B-005 bum60-vc-od-1082

Baumuller AC  - BUS21-15/30-31-020 - In 

Baumuller AC - BUS21-15/30-30-001 - In 

Baumuller BUM60B-06/12-54B-001-VC-0A-1091-0003 

BUS621-05/7 5-54-0-000  BAUMULLER ID3611

SERVOMOTOR DSOG71-K 4.3KW 3000MIN-1 8.4A 14NM ID24668

MOTOR DSCG056 K64U38-5UL 360V 3800RPM 1.9KW 317HZ BAUMULLER ID26165

SERVOMOTOR DSG56-L 2.9KW 540V 7.7A 4000MIN-1  12M WARRANTY ID23506

BUS20-60/135-30-001 3X0-200VAC 60A 0-300HZ  ID8200

BAUMüLLER BUM60S-04/08-54-B-014-VC-R0-01-0014 

Baumüller DSG45-M 3000min-1 0,72kW mit 

Baumüller DS71-S 3000min-1 6,3kW 

Baumüller DSG56-M 3000min-1 

BUS 621-10/15-54-0-000 BUS621 3x10A SERVO  ID3384

Baumüller BUS621-05/7.5-54-0 BUS6-E-SM-0012-B010-0000

Baumüller BUS622-15/22-54-0-000 

Baumüller  BUS20-40/60-30-001

BAUMüLLER DS56-B 


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  • 真: 0592-5165561
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