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| Breaking Capacity: | High Voltage Circuit Breakers |
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VS1E - 12 kv indoor enclosed type column type high voltage vacuum circuit breaker, apply to the rated voltage 7.2 ~ 12 kv, three-phase ac power system frequency 50 hz, widely used in power plants, substations, petrochemical, metallurgy, manufacturing, airports and village, etc., for the protection and control of electrical devices,especially suitable for the rated power flow frequent operation or open circuit of short circuit current place for many times, can be installed in open or stationary air insulated switchgear.Products in line with the GB1984 "AC high voltage circuit breaker", DL/T403 "12~40.5KV indoor AC high voltage circuit breaker ordering technical conditions"
And IEC60694, IEC6227-100 and other related standards.
VS1E-12KV indoor sealed pole column high voltage vacuum circuit breaker adopts advanced APG process, the vacuum arc extinguishing chamber and the main circuit are directly sealed in the epoxy resin pole column to form a sealed insulation mode, representing the world's highest level of high voltage vacuum circuit breaker design and manufacturing.
Note: when the installation mode of this product is replaced by ordinary insulated cylinder, the type of this product is VS1-12.
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Item
|
Description
|
Unit
|
Data
|
|
|
1
|
Rated voltage
|
KV
|
12
|
|
|
2
|
Max. voltage
|
KV
|
12
|
|
|
3
|
Rated current
|
A
|
630/1250/2500
|
|
|
4
|
Rated short circuit breaking current
|
KA
|
20/25/31.5
|
|
|
5
|
Rated short circuit making current
|
KA
|
50/63/80
|
|
|
6
|
Rated peak withstands current
|
KA
|
50/63/80
|
|
|
7
|
4S Rated withstands current
|
KA
|
20/25/31.5
|
|
|
8
|
Rated insulation level |
Power frequency voltage(when losing a circuit)
|
KV
|
Dreaker 65
|
|
Impulse withstand voltage(when losing a circuit)
|
Dreaker 125
|
|||
|
9
|
Rated operating sequence
|
|
OC-0.3s-CO-180S-CO
|
|
|
10
|
Mechanical life
|
Times
|
20000
|
|
|
11
|
Rated short circuit current breaking time
|
Times
|
274
|
|
|
12
|
Rated close brake voltage of operating machine
|
V
|
110,220
|
|
|
13
|
Rated break brake voltage of operating machine
|
V
|
110,220
|
|
|
14
|
Contact stroke
|
mm
|
13±1
|
|
|
15
|
Exceed range(the compressed length of contact spring)
|
mm
|
3.5±0.5
|
|
|
16
|
Different periods of three-phase break and close break
|
ms
|
≤2
|
|
|
17
|
The jump time of contact close break
|
ms
|
≤2
|
|
|
18
|
Average break speed
|
m/s
|
1.1~1.7
|
|
|
19
|
Average closing speed
|
m/s
|
0.6~1.1
|
|
|
20
|
Opening time |
Under max. operating voltage
|
S
|
≤0.05
|
|
Under min. operating voltage
|
≤0.08
|
|||
|
21
|
Closing time
|
s
|
0.1
|
|
|
22
|
Resistance of each phase main loop
|
μΩ
|
630≤50 1250≤45/ 1600-2500≤40
|
|
|
23
|
Contacts limit version
|
mm
|
3
|
|
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