Product overall structure in the form of operator arrangement in the primary loop on the side.(according to user requirements to provide the primary loop right and left side or the form of positive).Leading electrical part by insulation cover, static contact, coils, vacuum arcing chamber, such as flow fuse combination also electrical appliances co., LTD., with short circuit protection function.
Environment condition
- The altitude: under 1000M.
- The ambient temperature: -25℃-+40℃.
- The relative humidity of air: monthly≤90%, daily≤95%.
- Amplitude: Earthquake degree 8.
- Application occasions should free from fire, inflammables, explosives, corrosives and severe vibration.
Technical parameter
|
No. |
Item |
Unit |
Value |
||
|
1 |
Rated voltage |
kV |
12 |
||
|
2 |
Rated frequency |
Hz |
50 |
||
|
3 |
Rated current |
A |
630 |
||
|
4 |
Rated insulation level |
1min power frequency withstand voltage |
kV |
Arc-quenching chamber fracture 30 |
|
|
Effective value |
Earth ,phase 42, insulating fracture 48 |
||||
|
Lightning impulse withstand voltage (peak) |
Earth ,phase 75, insulating fracture 85 |
||||
|
5 |
Rated dynamic current (peak) |
kA |
50 |
||
|
6 |
4S thermal current |
kA |
20 |
||
|
7 |
Rated power load breaking current |
A |
630 |
||
|
8 |
Rated closed-loop breaking current |
A |
630 |
||
|
9 |
Rated cable charge breaking current |
A |
10 |
||
|
10 |
Rated breaking no-load transformer capacity |
kV |
1250 |
||
|
11 |
Rated transfer current |
A |
2000 |
||
|
12 |
Fuse model |
XRNT-12 |
|||
|
13 |
Striker output energy |
J |
2~5 |
||
|
14 |
Rated short-circuit closed current |
kA |
50 |
80(predictive value) |
|
|
15 |
Earth switch rated dynamic current |
kA |
50 |
||
|
16 |
Earth switch 2s thermal current |
kA |
20 |
||
|
17 |
Auxiliary circuit rated voltage |
V |
~220 ~110 |
||
|
18 |
Mechanical life |
times |
10000 |
||
|
19 |
Opening time of fuse trigger |
ms |
— |
30~40 |
|
|
20 |
Opening time of tripper trigger |
ms |
40~50 |
||