VTK-40.5KV Indoor Vacuum Generator Circuit Breaker

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1. Main Features
a. Our VTK-40.5 indoor vacuum generator circuit breaker is equipped with a stable and reliable spring operating mechanism with excellent performance and little maintenance.
b. The primary conducting loop adopts the solid insulation structure. The arc chute, conducting loop, and insulation support are combined into an integrated embedded pole by the advanced epoxy solid sealing technology. This successfully solves the environmental tolerance problem of the vacuum circuit breaker and makes it more widely used.
c. The withdrawable type circuit breaking device adopts a screw propulsion mechanism which is labor saving, stable and has good self-locking property. It can be installed in the KYN61 switch cabinet.
d. The fixed type circuit breaking device can be used in conjunction with the XGN switch cubicle.

VTK-40.5KV Indoor Vacuum Generator Circuit Breaker

2. Technical Parameters

No.	Item	Unit	Data
1	Rated voltage	kV	40.5
2	Power frequency withstand voltage (1min)		95
3	Lightning impulse withstand voltage (peak)		185
4	Rated frequency	Hz	50/60
5	Rated current	A	1250, 1600, 2000, 2500
6	Rated short-circuit breaking current (rms)	kA	25	31.5
7	Rated short-time withstand current (rms)	kA	25	31.5
8	Rated peak withstand current (peak)	kA	63	80
9	Rated short circuit making current (peak)	kA	63	80
10	Rated breaking current for a single back-to-back capacitor bank	A	400
11	Mechanical life	times	10000
12	Rated short-circuit current breaking times	times	20
13	Rated operating sequence		Open-0.3 s-close open-180 s-close open

3. Dimensions

RelatedNames
Vacuum Interrupter | Backup Generator Switch | High Voltage Products

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