Description
Description:
◆It is suitable for three-phase AC 50 / 60Hz interruption power supply and industrial electrical equipment
◆For load control and short circuit protection
◆Load switch breaking load, closed-loop current, no-load transformer and cable charging current
◆The current of the combined apparatus is up to the rated short-circuit current
◆It adopts direct acting isolation fracture and vacuum arc linkage, with manual and electric functions Feature:
◆Unique transmission structure design, small volume and light weight,
◆The interrupter only bears high voltage at the moment of making and breaking.
◆It can realize the one-time operation of isolating fracture and interrupter end fracture
◆There is a grounding valve linked with the grounding switch between the static contact and the moving contact conducting cylinder
◆It is safe and convenient to inspect
Details
|
1 |
Rated voltage | kV |
12 |
|
2 |
Rated current | A | 630/1250 |
|
3 |
Rated frequency | Hz |
50 |
|
4 |
Rated short-time withstand current (thermal stabilization current) |
kA |
20 |
|
5 |
Rated short circuit duration | s |
4 |
|
6 |
Rated peak withstand current (dynamic stable current) |
kA |
50 |
|
7 |
Rated active load breaking current |
A |
630 |
|
8 |
Rated closed-loop breaking current | A |
630 |
|
9 |
Rated cable charging breaking current | A |
10 |
|
10 |
Rated breaking no-load transformer capacity |
kVA |
1600 |
|
11 |
Rated short-circuit breaking current | kA |
31.5 |
|
12 |
Rated transfer current | A |
2000 |
|
13 |
Earthing switch rated short-circuit duration |
s |
2 |
|
14 |
Mechanical life | times |
10000 |
Installation Dimensions
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