Item Name: Indoor AC HV Vacuum Circuit Breaker (VS1)

ZN63-12(VS1) Indoor AC high voltage vacuum circuit-breaker series in the power system of three-phase AC, 50Hz and 10 kV to function as switching different kinds of leads or the loads needing frequent operation, and can protect and control electric equipment in the industrial & mineral enterprise, power plant and substation as well. It can coordinate with the KYN28A-12(GZS1) middle-arranged manual-driven switchgear or XGN-fixed switchgear as well.

Conform the standard: IEC 60056, GB198489, JB3855, DL/T403.

No.	Item	Unit	Data
1	Rated voltage	KV	12
2	Rated frequency	Hz	50
3	Rated lighting impulse withstand voltage (peak)	KV	75
4	Rated short time withstand voltage (1 min)	KV	42
5	Rated short time breaking current	KA	20	25	31.5	40
6	Rated current	A	630 1250	630 1250	630, 1250 1600, 2000 2500, 3150	1600, 2000 2500, 3150
7	Rated short time withstand current (virtual value)	KA	20	25	31.5	40
8	Rated peak withstand current (peak)	KA	50	63	80	100
9	Rated short-circuit closing current (peak)	KA	50	63	80	100
10	Rated short-circuit current duration	s	4
11	Rated short-circuit current breaking time	times	50 (for 40KA is 30)
12	Mechanism life	Times	2000
13	Secondary circuit power frequency withstand voltage (1 min)	V	2000
14	Rated operation order		O-0.3S-CO-180S-CO		O-180S-CO-180S-CO
15	Rated unit/ back-to-back capacitor bank breaking current	A	630/400 (for 40Ka is 800/4000
16	Rated capacitor bank closing inrush current	KA	12.5(frequency is not higher than 1000HZ)
17	Contact opening distance	mm	11± 0.1
18	Contact supper travel	mm	3.5± 0.5
19	Contact closing tripping time	ms	≤ 2
20	Three-phase breaking /closing non-synchronism	ms	≤ 2
21	Average switch-off speed	m/s	1± 0.2
22	Average switch-on speed	m/s
23	Switch-off (rated voltage)	ms	20~60
24	Switch-on (rated voltage0	ms	30~70
25	Rated switch-on/off operating voltage	V	AC110/220, DC110/220
26	Energy storage motor rated voltage	V	AC110/220, DC110/220
27	Motor rated rate of work	W	70(40KA  100W)
28	Energy storing time	s	≤ 15
29	Contact erosion limit	mm	3
30	Break-brake rebound amplitude	mm	≤ 3
31	Main conducting loop resistance	630A 1250A 1600-2000A 2500 and above			≤ 65μ Ω  ≤ 55μ Ω  ≤ 45μ Ω  ≤ 35μ Ω
32	Contact switch-on pressure	20KA 25KA 31.5KA 40KA			(2000± 200)N (2400± 200)N (3100± 200)N (5000± 300)N

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