AB 1771-IFEK_廈門仲鑫達科技有限公司

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熔斷器和熱繼電器在電氣線路中的使用

在電動機控制接線中，主電路中裝有熔斷器，為什麼還要加裝熱繼電器?它們各起何作用，能否互相代替?而在電熱及照明線路中，為什麼只裝熔斷器而不裝熱繼電器?

答:熔斷器在電氣線路中主要起短路保護和嚴重過載保護作用，而熱繼電器主要用於過載保護.兩者不能互為代用，但可以互為補充.如果用熔斷器作電動機的過載保護，為了防止電動機在啟動過程中熔斷器熔斷，熔斷器熔體的額定電流一般應取電動機額定電流的2. 5~3倍，這樣即使電動機長時間過負荷50%，熔斷器也不會熔斷，而電動機可能因長時間過負荷而燒壞.所以不能用熔斷器作過負載保護.而熱繼電器是利用電流的熱效應來工作的，由於熱慣性的影響，盡管發生短路時電流很大，也不可能使熱繼電器立即動作，這樣就延長了短路故障的影響時間，對供電係統及用電設備會造成危害.所以也不能用熱繼電器作為短路保護.

對於電熱及照明設備，由於負載的性質不同於電動機的拖動負載，一般來說，它們不會出現過負載現象，所以，一般不裝備熱繼電器，而只裝備熔斷器，主要起短路保護作用.

Baumueller FGNF132 MV

BAUM徂LLER 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

Baum徂ller BUG 2-60-30-B-003

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

BAUM徂LLER BM4413-ST1-02208-0308

BAUM徂LLER, BKF12/600/400/604000004, A-Nr: 228041

DSV6 - OSAI AB - / KONTROLLER BAUM徂LLER

BAUMULLER BUS3-15/30-30-004

Baum徂ller BKF12/100/400-604000003 DC

Baum徂ller BKF12/150/400-604000003 DC

Baum徂ller BUM62-075/97,5-54-0-000 BUM62

Baum徂ller BKH 4-15-6-102

Baum徂ller BKF12/150/400-604000003

Baum徂ller BKF12/250/400-201000002 BKF 12/250/400

BAUM徂LLER BKF12/70/400-2001 BKF12/70/400 MPG-2.85005 70A

BAUMULLER DSOG 71-K REPAIR

BAUM徂LLER BUM62-075/97,5-54-0-000 BUS624-38/55

Baumueller GNAF 160 KV or GNAF160KV

Baum徂ller BKF 12/070/400-604000000

Baum徂ller BKF 12/100/400-604000000

BAUM徂LLER 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

Baum徂ller BKF12/150/400-604000003 DC

Baum徂ller BKF12/050/400-604000003

BKF12/150/400-2009 BAUMULLER ID8759

Baum徂ller BKF-/BKD 7000 BKF 12/0030/420-520/70300000000

Baum徂ller BKF-/BKD 7000 BKF 12/0100/420-520/703000000

Baum徂ller Leistungsmodul BUS624-45/67-54-0-003 BUS 624

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

Baum徂ller BM4422-SI1-21200-03

Baum徂ller (Typ:BKF12/30/400-2002) (D.334)

Baum徂ller Typ: BKF12 /380/400-3010001

Baum徂ller GSF45LB 4000min-1 EMCO VMC200 VMC100 Emco Turn 242 ET242

Baum徂ller BKF 12/100/400-3010001

Baum徂ller BKF12/100/400-604000003 DC

Baum徂ller BKF 12/120/400-2002

Baum徂ller BKF 12/70/400-604000000

Baum徂ller BKF12/100/400-604000002

Baum徂ller BKF 12/100/400-604000000

Baum徂ller BKF12/100/400-604000003

Baum徂ller BKH-4-40-6-102

BKF12/200/520-2002 BAUMULLER ID8201

BKF12/100/400-3010005 ID16004

Baum徂ller BUS 3-10/20-31-010

BAUM徂LLER, BKF12/100/400/604000004, A-Nr: 228670

Baum徂ller 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

Baum徂ller BUM60-30/60-31-B-000 + BUM60-A-SM-0100-L

Baum徂ller BUM25-30/60-30-001

DSO 71-M 20315221 148VK0281072

Baum徂ller BKF12/200/400-2002

Baum徂ller DS100-S

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

BUC2-G60/60-34-001-00

Baum徂ller BKF12/070/400-604000003

BKF12/100/400-3010001 12M WARRANTY ID16453

BKF12/120/400-2002 ID16110

BAUM徂LLER BUM618-12/18-31-R-0000-A010-SM

Baum徂ller GNAF132MV

Baum徂ller BUS20-80/135-30-001

Baum徂ller DSG 56-L RE-21-1-A05 Netzfilter BFN 3-1-16

Baum徂ller BKF12/040/400-604000003 DC

Baum徂ller BUG622-15/22-54-0-000 BUS6-VC-EC-0016

Baum徂ller DS100S35

Baum徂ller BUS622-15/22-54-0-000 BUS6-E-SM-0012-B010-0000

Baum徂ller BUS622-15/22-54-0-000 BUS6-VC-EC-0016

Baum徂ller BUG622-15/22-54-0-000

Baum徂ller BKF 12/30/400-604000000

Baum徂ller BUC2-90/90-62-001-01

Baum徂ller BUS624-38/55-54-0 Bus6-E-SM-0012-B010-0000

Baum徂ller BKF12/030/400-604000003

Baum徂ller BUM60-A-SM-0100-L / 232968

Baum徂ller BUS20-120-30-B-000 183

Baum徂ller 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 Baum徂ller 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

Baum徂ller Servodrive BUM60-VC-A0-0036 BUM60-03/06-54-B-001

Baum徂ller DS45-L 3000min-1

Baum徂ller BKF12/150/400-604000003 BKF12150400-60400000

Baum徂ller BUG623-56-54-E-000

Baum徂ller BUS623-20/30-54-0-000

Baum徂ller BUS624-38/55-54-0-005

Baum徂ller BUM60-VC-A0-0001

Baum徂ller BUG622-28-54-E-013

BAUMULLER BUS21-22/45-30-001

Baum徂ller BUS623-20/30-54-0-202

Baum徂ller BKF12/030/400-604000003 DC

Baum徂ller Servo Motor DS100-S

Baum徂ller BUS622-15/22-54-0 + BUS6-VC-AE-0047

Baum徂ller BKF12/850/400-604000003

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

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

Baum徂ller 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

Baum徂ller BKF 12/30/400-604000000

Baum徂ller BKF 12/120/400

Baum徂ller DSOG100-K-35-R-K

Baum徂ller Motor DS 71-K35-UL Art 326925

Baum徂ller BUS621-05/7,5-54-0-000 BUS6-E-SM-0012-A011-000

Baum徂ller BUS621-05/7,5-54-O-200

Baum徂ller BUS621-05/7.5-54-0-003

Baum徂ller BUS621-10/15-54-0-000

Baum徂ller BUS624-38/55-54-0 + BUS6-E-SM-0012-B010-0000 -

BAUM徂LLER BM4414-ST0-01200-03

Baum徂ller BUG2-60-30-EK-003

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

Baum徂ller BUS61-30/45-54-0-00-VC-AC-1069

PP3190 Baum徂ller 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

BAUM徂LLER BUM60S-04/08-54-B-014-VC-R0-01-0014

Baum徂ller DSG45-M 3000min-1 0,72kW mit

Baum徂ller DS71-S 3000min-1 6,3kW

Baum徂ller DSG56-M 3000min-1

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

Baum徂ller BUS621-05/7.5-54-0 BUS6-E-SM-0012-B010-0000

Baum徂ller BUS622-15/22-54-0-000

Baum徂ller BUS20-40/60-30-001

BAUM徂LLER DS56-B