product description
The FL(R)N48 series indoor high-voltage sulfur hexafluoride load switch and its fuse combination electrical appliances are developed and designed by our company by absorbing advanced foreign technology and combining it with my country’s actual operating requirements. This product complies with IEC62271, IEC60265, IEC60420, GB3804, GB16926, and other standard requirements. This product has three stations of “opening-closing-grounding” and is reliably interlocked. Install a cable head type load switch, with a touchable cable front connector installed at the outlet end, and high-voltage cables installed at the incoming and outgoing lines, which are installed in the cable branch box. The switch’s special dynamic seal and fixed seal design ensure reliable sealing, and a pressure gauge is installed at an obvious location for monitoring during operation to ensure safe operation. This product is suitable for three-phase AC (12 kV, 50/60 Hz) power systems.
Product Technical Parameters
| FL (R) N48 technical parameters | ||
|---|---|---|
| Rated voltage | kV | 12 |
| Rated current | A | 630 |
| Rated frequency | Hz | 50/60 |
| The rated short-circuit level combination current (peak) | ka | 62.5 |
| The rated peak tolerance current (peak) | kA | 62.5 |
| Short-time tolerance current (effective value)1 second | kA | 25 |
| The maximum opening of the break current (when the fuse is used) IEC 62271-105 (IEC 420 1990-11) | A | 1530 |
| Main valid load current | A | 630 |
| Cable charging current | A | 630 |
| The rated short-time work frequency tolerance voltage 50Hz 1 min,: | ||
| -Mhande | kV | 42 |
| -The disconnect | kV | 45 |
| The rated lightning shock tolerance voltage 1.2/50 μs | ||
| -Mhande | kV | 75 |
| -The disconnect | kV | 85 |
| Mechanical life | cycles | 3000 |
Dimensional drawing
