VS1-12/24 type indoor high voltage vacuum circuit breaker
VS1-24 type indoor high voltage vacuum circuit breaker
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VS1-12/24 High Voltage Vacuum Circuit Breaker
Application
VS1-12/24 indoor high voltage vacuum circuit breaker is used in the three-phase AC power system of frequency 50Hz, rated voltage 12kV. It is applied in the grid equipment, the power distribution system of industrial and mining enterprises as well as the places where requires repeated opening short-circuit current and frequent operation.
This circuit breaker adopts unibody design of operating mechanism and circuit breaker technology, which can not only be used as fixed installation unit, but also can constitute the handcart unit with dedicated advanced mechanism.
VS1-12/24 is indoor medium-voltage solid type seal vacuum circuit breaker,VS1-12/24 vacuum breaker suitable for the insulation in the indoor air switch for 50Hz, rated voltage 12kV and below the grid from the control and protection, VS1-12/24 vacuum circuit breaker and the frequent need for short-circuit breaking current of occasions with very good performance, fully meet the requirements of automatic re-closing and have higher reliability and service life.
Technical Parameter
No
Item
Unit
Value
1
Rated voltage
kV
12/24
2
High test
operating voltage
kV
12/24
3
Rated current
A
630,1000,1250
1600
2000,2500,3150
4000
4
Rated short-circuit breaking current
kA
20
25
31.5
5
Rated short-circuit
closing current
kA
50
63
80
6
Rated peak
withstand current
kA
50
63
80
80
100
100
125
7
Rated short time
withstand current
kA
20
25
31.5
31.5
40
40
50
8
Rated
Insulation
Level
P.F. withstand
voltage(Before and after the rated breaking)
kV
42(fracture48)
Impulse withstand
voltage(Before and after the rated breaking)
kV
75(fracture84)
9
Rated operating
order
O-0.3S-CO-180S-CO
10
Mechanical life
times
3000
11
Rated
short-circuit 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
3.5±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
0.9~0.12
19
Average time of
closing
s
0.4~0.8
20
Opening time
ms
50
21
Closing time
ms
100
22
Main loop
resistance of each phase
μΩ
60
50
23
Allowed acumination
thickness between moving contact and static contact
mm
3
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