Specifications
ZN63A(VS1)-121, AC 3 phase ,
2, Rated voltage :12KV
3,Rated operating order :O-0.3 S-CO-180 S-CO
Descriptions
12KV vacuum circuit breaker ZN63A(VS1)-12
Applications
VS1-12 indoor high voltage vacuum circuit breaker is a indoor switch equipment of power system which rating tri-phase AC 50Hz, 12kV.
Act as the protecting and controlling unit for grid equipments and industrial mining enterprises’ equipments .
Applicable to locations that need frequent operating in rated current or under repeatedly on/off shortcircuit current .
This breaker was designed as a unit which gathering actuator and circuit breaker main body,
can be used for fixed mounting unit , also can be constituted as a withdrawable unit through outfit dedicated advancing mechanism.
This circuit breaker identified from the standard items of GB1984-2003 AC high voltage circuit breaker , JB3855-1996 3.6-40.5kv indoor AC high voltage vacuum circuit breaker , DL403-91 Ordering technical conditions of 10-35kv indoor AC high voltage vacuum circuit breaker and IEC56 .etc..
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Illustration of Model
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Technical Parameters
No. | Item | Unit | Data | ||||
1 | Rated voltage | KV | 12 | ||||
2 | Hightest operating voltage | KV | 12 | ||||
3 | Rated current | A | 630,1000 1250 | 1250,1600,2000,2500 | 1250,1600,2000,3150 | 2000,2500,3150 | |
4 | Rated short-circuit breaking current | KA | 20/25 | 31.5 | 40 | 50 | |
5 | Rated short-circuit closing current | KA | 50/63 | 80 | 100 | 125 | |
6 | Rated peak withstand current | KA | 50/63 | 80 | 100 | 125 | |
7 | 4S rated short time withstand current | KA | 20 | 31.5 | 40 | 50 | |
8 |
Rated insulation level | P.F. withstand voltage(Before and after the rated breaking) | KV |
42(Fracture 48) | |||
Impulse witstand voltage(Before and after the rated breaking) | KV |
75(Fracture 84) | |||||
9 | Rated operating order |
| O-0.3 S-CO-180 S-CO | ||||
10 | Mechanical life | Times | 20000 | ||||
11 | Rated short-circult breaking current breaking times | Times |
50 | ||||
12 | Actuator Rated closing voltage(DC) | V | 110,220 | ||||
13 | Actuator Rated opening voltage(DC) | V | 110,220 | ||||
14 | Clearance between open contacts | mm | 11±1 | ||||
15 | Supper Travel(Compressed length of contact springs) | mm | 4±0.5 | ||||
16 | Non corresponding time period between tri-phase opening and closing | ms | ≤2 | ||||
17 | Bounce time of closing contacts | ms | ≤2 | ||||
18 | Average time of opening | s | ≤0.05 | ||||
19 | Average time of closing | s | ≤0.08 | ||||
20 | Opening time | ms | ≤50 | ||||
21 | Closing time | ms | ≤100 | ||||
22 | Main loop resistance of each phase | u Ω | ≤40 | ||||
23 | Allowed accumination thickness between moving contact and static contact | mm | 3 | ||||
Products display
Specific elements and terminals , longer life , Withstand heavy duty .
Outline overall and Installing Demensions
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