VS1(ZN63A)-12 Series

VS1 (ZN63A)-12 series indoor high voltage vacuum circuit breaker is three phase AC 50Hz indoor high voltage switchgear with rated voltage 12kV, divided into handcart type and stationary type.

Description

Description
VS1 (ZN63A)-12 series indoor high voltage vacuum circuit breaker is three phase AC 50Hz indoor high voltage switchgear with rated voltage 12kV, divided into handcart type and stationary type. This VCB is widely used to power stations, substations, and industrial and mining enterprises to control or protection power transmission and distribution systems, specially for the important high altitude breaking load and frequent operation place and reliable interlock function.
The operating mechanism is for the spring energy storage type, can use AC and DC energy storage operations. The circuit breaker can be used for extremely frequent operation place, equipped with KYN28A-12 handcart type switch cabinet, and the fixed type VCB can also be used for XGN series switch cabinets. It conforms to National Standard GB1984-2003, and the related IEC standards.
The circuit breaker is designed as a front-rear split charging structure, which both can be used as a fixed installation unit, and also be equipped with the chassis as used in the mounted, handcart unit.

Environment Condition
– Ambient temperature:-15℃~+40℃
– Altitude: ≤1000m
– Daily average relative humidity: ≤95%
– Monthly average relative humidity: ≤90%
– Earthquake intensity: ≤8 degree
– No fire, explosion, severe vibration, chemical corrosion and serious pollution

Technical Data

1 Rated voltage kV 12
2 Max. working voltage kV 12
3 Rated Current A 630, 1250 1600,2000
2500, 3150
2000, 2500
3150, 4000
4 Rated short-circuit breaking current kA 20/25 31.50 40
5 Rated short-circuit closing current (peak) kA 50/63 80 100
6 Rated peak withstand current kA 50/63 80 100
7 4s rated short-circuit withstand current kA 20/25 31.50 40
8 Nos. of rated short-circuit breaking current Times 50 (30 above 40kA)
9 Rated operating sequence 0-0.3s-CO-180s-CO/
0-180s-CO-180s-CO(Above 40KA)
10 Rated lightning impulse withstand voltage kV 75(Switch gap:85)
11 1min power frequency withstand voltage kV 42 (Switch gap:48)
12 Mechanical life Times 10000
13 Contact open distance mm 11±1
14 Contact Over-travel (Length of spring compression) mm 3.5±0.5
15 Rated switch-on/off operating voltage V AC110/220,DC110/220
16 Tripping time Max. operating voltage s ≤0.05
Min. operating voltage ≤0.08
17 Closing time s 0.1
18 Motor rated power W 70 (above 40kA: 100W)
19 Average closing speed m/s 0.5-0.8
20 Average opening speed m/s 0.9-1.2
21 Contact closing bounce time ms ≤2
22 Three phase contact closing opening asynchrony ms ≤2
23 The main circuit resistance each phase μΩ 630A≤50, 1250A≤50, 1600A≤40
24 Allowed consumpted thickness of contacts mm 3

Outline Dimension

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Chenghe Electric Power Technology Group Co., Ltd. is a specialized and modern high-tech enterprise integrating R&D and manufacturing.

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No.381, Jing Qi Road, Yueqing Economic Development Zone, Yueqing City, Zhejiang Province, China
+86-153 5592 1155
+86-133 5613 1133
kel@chenghedl.com

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