ZW20DF-12/630-20 (ZW20A-12) Outdoor AC vacuum circuit breaker is rated 12kV, three-phase AC 50Hz outdoor high voltage switchgear. Mainly used for breaking, closing load current power system, overload current and short circuit current.
For substation, industrial and mining enterprises and urban and rural power for protection and control, especially for frequent operation of the distribution network sites and urban network automation.
In the national authority through a comprehensive type tests, meet the following criteria:
GB1984 High voltage AC circuit breaker;
GB/T11022 High-voltage switchgear and control equipment standards common technical requirements;
D11402AC high voltage circuit breakers ordering technology.
City, rural power grids ideal equipment:
Controllers can be equipped with a remote control, telemetry and remote adjustment, to achieve "four remote" feature.
Flexible and convenient:
This product is an electric energy storage, electric division, both manual storage, manual switching, and can close or remote operation.
Breaking superior performance:
25kA short-circuit breaking current up to 30 times.
Operating power, high reliability:
Operatives newly designed small electric spring mechanism (about 30W) is reduced to a minimum.
Installation flexibility:
Lifting column can be mounted or pedestal mounting.
Sealing performance and reliability:
SF6 zero pressure gauge and seal structure using mature technology, reliable sealing performance, easy to leak.
The unique inlet and outlet:
Silicone rubber tube, so that sufficient insulation distance between terminals, excellent external insulation properties.
Use safety:
At the top of the box is installed explosive devices, even in the event of internal faults, there will be no high-temperature gas or spatter leaked.
|
No.
|
Project Name
|
Unit
|
Parameter
|
|
1
|
Rated voltage
|
kV
|
December 24
|
|
2
|
Rated frequency
|
Hz
|
50
|
|
3
|
Rated Current
|
kA
|
630、1000
|
|
4
|
Rated short-circuit breaking current
|
kA
|
12.5 16 20 25
|
|
5
|
Rated peak withstand current (peak)
|
kA
|
31.5 40 50 63
|
|
6
|
Rated short circuit withstand (4S)
|
kA
|
12.5 16 20 25
|
|
7
|
Rated short-circuit current (peak)
|
Secondary
|
31.5 40 50 63
|
|
8
|
Mechanical life times
|
Secondary
|
10000
|
|
9
|
Rated short-circuit breaking current breaking times
|
kA
|
30
|
|
10
|
1min power frequency withstand voltage (phase to earth / fracture)
|
kV
|
42/49/60
|
|
11
|
Lightning impulse withstand voltage peak (white, right / fracture)
|
kV
|
75/85/125
|
|
12
|
1min power frequency withstand voltage secondary circuit
|
kV
|
2
|
|
13
|
Net weight
|
kg
|
140
|
|
14
|
SF6Rated gas gauge
|
Mpa
|
"0"
|
Note: When the product site altitude exceeds 1000m, the insulation level by the corresponding correction factor.
Altitude: not exceed 1000m;
Ambient air temperature: -40 ℃ ~ +40 ℃, diurnal temperature: diurnal temperature variation of not more than 25 ℃;
Wind speed: less than 34m / s;
Non-flammable, explosion, strong corrosive chemicals (such as various acids, bases, or smoke, etc.) and severe vibration.
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