project name |
unit |
product category |
|||
load switch |
combined electricalswitch |
breaker |
lsolation switch |
||
rated voltage |
kv |
12 |
12 |
12 |
12 |
arc extinguishing type |
- |
vacuum |
vacuum |
vacuum |
- |
rated current |
a |
630 |
125 |
630 |
630 |
rated frequency |
hz |
50 |
50 |
50 |
50 |
main circuit resistance |
μω |
≤150 |
note1 ≤500 |
≤150 |
≤150 |
imin power frequency withstand voltage is the same, with phase to ground/fracture |
kv |
42/48 |
42/48 |
42/48 |
42/48 |
same lightning impulse withstand voltage, phase to ground/fracture |
kv |
75/85 |
75/85 |
75/85 |
75/85 |
rated short-circuit breaking current |
ka |
- |
note2 315 |
20 |
- |
rated short-circuit making current |
ka |
50 |
note2 80 |
50 |
- |
rated short time withstand current |
ka/s |
20/4 |
- |
20/4 |
- |
rated peak withstand current |
ka |
50 |
note2 80 |
50 |
- |
rated cable charging breaking current |
a |
10 |
- |
- |
- |
5% rated active load breaking current |
a |
315 |
- |
- |
- |
transfer current |
a |
- |
3150 |
- |
- |
average closing speed |
m/s |
09±0.2 |
- |
||
average opening speed |
m/s |
13±0.2 |
- |
||
different periods of opening and closing |
m/s |
≤2 |
- |
||
closing time |
m/s |
25~60 |
- |
||
opening time |
ms |
17~45 |
- |
||
closing bounce time |
ms |
≤2 |
- |
||
mechanical life |
次 |
load switch/circuit breaker: 10000; isolation and grounding switch: 3000 |
|||
protection level |
|
ip67 |
|||
partial discharge value |
pc |
note2 ≤5 |
note 1 in the above table: use conductive rods instead of high-voltage fuses; note 2: according to the high-voltage fuse; note 3: all epoxy insulators