ZN63(VS1)-12 High Voltage Vacuum Circuit Breaker
ZN63(VS1)-12 High Voltage Vacuum Circuit Breaker
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ZN63(VS1)-12 High Voltage Vacuum Circuit Breaker
Application
ZN63(VS1)-12 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.
ZN63(VS1)-12 is
indoor medium-voltage solid type seal vacuum circuit breaker, ZN63(VS1)-12 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, ZN63(VS1)-12
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 |
||||
|
3 |
Rated current |
A |
630 |
630 |
1250 |
||
|
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 |
||
|
7 |
4Srated short time withstand current |
kA |
20 |
25 |
31.5 |
||
|
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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