40.5KV Vacuum interrupter for indoor circuit breaker VTD546GF
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40.5KV Vacuum interrupter for indoor circuit breaker VTD546GF
Vacuum Interrupter (V.I) is a core part that composes the breaking part of high-voltage VCB.
Generally, it is a satisfactory conductor to supply power and it promptly interrupts the current in case of an overload and short circuit faults to ensure the insulation.
It is the most ideal, arc-extinguishing device.
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’s annual production capability is 500,000 number of MV vacuum interrupter. It is a leading vacuum interrutper manufacturer in China.
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 indoor circuit breaker
VTD546GF
ZKTD 1600/40.5-25
ZKTD 2000/40.5-25
ZKTD 1600/40.5-31.5
ZKTD 2000/40.5-31.5
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产品参数(英文)
Main Technical Data
ELECTRICAL RATINGS(3PHASE) SYMMETRICAL BASIS | |
1.Rated Voltage | 40.5KV |
2.Rated Current | 1600/2000A |
3.Rated Frequency | 50/60Hz |
4.Rated Short-time Power Frequency Withstand Voltage(1min) | 95KV |
5.Rated Ligting Impulse Withstand Voltage | 185KV |
6.Rated Short-circuit Breaking Current | 25/31.5KA |
7.Rated Short-circuit Making Current(Peak) | 63/80KA |
8.Rated Operations of Short-circuit Breaking Current Interruption | 20times |
9.Rated Single Capacitor Bank Breaking Current* | 400A |
10.Rated Short-time Withstand current(3Phase Symmetrical Basis) | 25/31.5KA |
11.Rated Peak Withstand Current | 63/80KA |
12.Rated Duration of Short-circuit | 4s |
13.Mechanical Life | 10,000Operations |
14.Contact Closing Force due to Bellow and Atmospheric | 250±50N |
15.Force Required to Hold Contacts open at Full Stroke | 330±60N |
16.Circuit Resistance at Rated Contact Force | ≤20Micro ohms |
17.Shelf Life | 20Years |
18.Contact Erosion Limit | 3mm |
19.Moving Part Weight(Approx.) | ≤4kg |
MECHANICAL REQUIREMENTS(REF. VCB) | |
1.Contact Stroke | 18±1 mm |
2.Opening Speed(average) | 1.6±0.2m/Sec |
3.Closing Speed(average) | 0.75±0.2m/Sec |
4.Rated Contact Compressive Force | 3100±200N |
5.Maximum Contact Bounce Duration at closing operation | ≤2ms |
6.Contact Bouncing Bank Amplitude of Opening Operation | ≤4mm |
7.Closing and Opening non-simultaneity of three-phase Contacts | ≤2ms |
Notes: 1.Meets or exceeds the electrical endurance requirements of class E2 for autoreclosing duty per IEC 62271-100 and GB 8738-2008. | |
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