Medium Voltage Outdoor Vacuum Circuit Breaker Rated Voltage 7.2kv/12kv, Rated Current 630A/1250A/2000A/3150A/4000A Vacuum Interrupter

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Wuhan Feite Electric Co., Ltd.

VIP   Audited Supplier 5 years
Profile Certified by SGS/BV
VTD3141AB
High Voltage Circuit Breakers
Electric Type
Normal Type Circuit Breaker
Vacuum
Fixed
Vcb
3
Circuit Breaker
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
ISO9001-2000
Feite Brand
Cartons/Pallets
China
8535900090
Product Description
Vacuum interrupter for outdoor circuit breaker
VTD3141AB 
ZKTD630/12-12.5
ZKTD630/12-16
ZKTD630/12-20

Vacuum Interrupter for Outdoor Circuit Breaker

Vacuum arc extinguishing chamber, also known as vacuum switch tube, is the core component of the high voltage power switch, its main role is to cut off the arc and inhibit the electric current by its high inside insulation performance to avoid accidents.

Wuhan Feite Electric brand vacuum arc extinguishing chamber adopts a corrugated ceramic insulation shell, copper tungsten tungsten carbide alloy materials contact, using advanced one exhuast technology process makes the vacuum interrupter has the advantages of small volume, high insulating level, low closure value, long service lifetime, easy-maintenance, explosion-free, low noise,low maintenance costs, reliable operation and non-pollution etc.. The vacuum arc extinguishing chamber mainly been used in power transmission and distribution control system. It is also can be used in metallurgy, mine, petroleum, chemical industry, railway, broadcasting, communications, industrial high frequency heating power distribution system.

Wuhan Feite Electric vacuum arc extinguishing chamber for outdoor circuit breaker rated voltage is 7.2KV~40.5kV, rated current is 630A~4000A, rated short circuit open fault current is 12.5KA~40kA.

Vacuum interrupter for outdoor circuit breaker; VTD3141AB; ZKTD630/12-12.5; ZKTD630/12-16; ZKTD630/12-20

Main Technical Data

ELECTRICAL RATINGS(3PHASE) SYMMETRICAL BASIS

1. Rated Voltage

12KV

2. Rated Current

630A

3. Rated Frequency

50/60Hz 

4. Rated Short-time Power Frequency Withstand Voltage(1min)

42KV

5. Rated Lighting Impulse Withstand Voltage

75KV

6. Rated Short-circuit Breaking Current

12.5/16/20KA

7. Rated Short-circuit Making Current(Peak)

31.5/40/50ka

8. Rated Operations of Short-circuit Breaking Current Interruption

30times

9. Rated Single Capacitor Bank Breaking Current*

400A

10. Rated Short-time Withstand current(3Phase Symmetrical Basis)

12.5/16/20KA

11. Rated Peak Withstand Current

31.5/40/50KA 

12. Rated Duration of Short-circuit

4s 

13. Mechanical Life

10,000Operations

14. Contact Closing Force due to Bellow and Atmospheric

70±40N

15. Force Required to Hold Contacts open at Full Stroke

120±50N

16. Circuit Resistance at Rated Contact Froce

≤20Micro ohms 

17. Shelf Life

20Years

18. Contact Erosion Limit

3mm 

19. Moving Part Weight(Approx.)

≤0.7kg

MECHANICAL REQUIREMENTS(REF. VCB) 

1. Contact Stroke

9±1 mm 

2. Opening Speed(average)

1.0±0.25m/Sec 

3. Closing Speed(average)

0.65±0.15m/Sec

4. Rated Contact Compressive Force

1600±100N 

5. Maximum Contact Bounse Duration at closing operation

≤2ms 

6. Contact Bouncing Bank Amplitude of Opeing Operation

≤2ms

7. Closing and Opening non-simultaneity of three-phase Contacts

≤1ms

Notes:

1. Meets or exceeds the electrical endurance requirements of class E2 for autoreclosing duty per IEC 62271-100 and GB 8738-2008.

2. * Rated Characteristics to be given on request




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