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

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: Vcb
• Model NO.: VTD3141AB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
• Certification: ISO9001-2000
• Transport Package: Cartons/Pallets
• Trademark: Feite Brand
• Origin: China
• HS Code: 8535900090
• Production Capacity: 600000/Year

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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