vacuum interrupter for vacuum contactor voltage 1.14kv/3.6kv/7.2kv/12kv/24kv, rated current is 400A/630A/1250A, 10ka vacuum switchgear/vacuum circuit breaker

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: Contactor
• Model NO.: VTJ4340A 12kv 400a/630a 10ka
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), MV
• Certification: ISO9001-2000
• Transport Package: Cartons/Pallets
• Trademark: Feite Brand
• Origin: China
• HS Code: 8535900090
• Production Capacity: 600000/Year

Product Description

Vacuum interrupter for contactor
VTJ4340A
ZKTJ 400/12-6.3
ZKTJ 630/12-6.3


 

Vacuum Interrupter for Contactor

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 vacuum contactor rated voltage is 1.14~40.5kV, rated current is 630A~1250A

Main Technical Data 

ELECTRICAL RATINGS(3PHASE) SYMMETRICAL BASIS
1.Rated Voltage	12KV
2.Rated Current	400/630A
3.Rated Frequency	50Hz
4.Rated Short-time Power Frequency Withstand Voltage(1min)	70KV
5.Rated Lighting Impulse Withstand Voltage	107KV
6.Rated Making Current	6.3KA
7.Rated Breaking Current,Max	5.0KA
8.Rated Breaking Current,Min	125A
9.Rated Making Current,Limit	6.3KA
10.Rated Short-time Withstand current	6.3KA
11.Rated Duration of Short-circuit	4s
12.Mechanical Life	30×times
13.Electricity Life AC-3	25×times
14.Electricity Life AC-4	10×times
15.Rated Contactl Stroke	8±1mm
16.Contact Closing Force Due to bellows and atmosphere	120±50N
17.Counterforce at rated contact stroke	190±60N
18.Circuit resistance at rated contact atmosphere force	≤45 µ
19. Shelf life	20years
20.Contact erosion limit	3mm
21.Weight of moving parts	≤1.2kg
MECHANICAL REQUIREMENTS(REF. VCB)
1.Added contact force	500±50N
2.Average opening speed	1.0±0.2m/Sec
3.Average closing speed	0.6±0.2m/Sec
4.Contact Bouncing Duration at closing operation	≤2ms
5.Contact Bouncing Bank Amplitude of Opeing Operation	≤2mm
6.Three-pole simultaneity	≤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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