Substation Vacuum Circuit Breaker,Outdoor Switch-Substation Vacuum Circuit Breaker-Wenzhou Tuyuan Electric Co.,Ltd

36kV outdoor HV vacuum circuit breaker is designed as a AC three-phase 50Hz and rated voltage 36kV equipment that is mainly applied to rural and urban substation power grids with 36kV distribution system for the use of opening and closing of load current, overload current and short circuit current. The outdoor adopts porcelain as insulation material which has advantages of anti-condensation, aging resistance and temperature resistance.

No.	Item	Units	Data
1	Rated voltage	kV	40.5
2	Rated current	A	1250/1600/2000
3	Rated frequency	Hz	50/60
4	1 min PF withstand voltage (wet) (dry) P to P, P to E / across the breaking distance	kV	80 95 / 95
5	Lightning impulse withstand voltage (peak) P to P, P to E / across the breaking distance	kV	185
6	Rated short circuit breaking current	kA	25/31.5
7	Rated short circuit making current (peak)	kA	63/80
8	Rated peak withstand current	kA	63/80
9	4s short-circuit withstand current	kA	25/31.5
10	Rated operating sequence		O-0.3S-CO-180S-CO
11	Number of rated short-circuit breaking current operations	times	30
12	Mechanical life	times	10000
13	Mechanism control voltage	V	AC/DC 220
14	Power-frequency withstand voltage for 1 min (secondary circuit)	kV	2

No.	Item	Units	Data
1	Contact gap	mm	18±1
2	Contact overtravel	mm	4±0.5
3	Opening speed	m/s	1.4-1.8
4	Closing speed	m/s	0.4-0.8
5	Contact closing bounce time	ms	≤5
6	Phase-to-phase center distance	mm	710±2
7	Three-phase opening and closing asynchronism	ms	≤2
8	Resistance of each phase conducting circuit	μΩ	＜80
9	Closing time	ms	≤100
10	Opening time	ms	≤50

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