FLNSF6-24/T630 load switch is a 24kVSF6 gas cabinet dedicated load switch. The switch is mainly rotating moving contact, using arc extinguishing grid to extinguish arc, with reliable performance and good insulation performance.
This series includes two-and three-position switches, and the product performance complies with the relevant standards of GB1895-2004 "High-voltage AC disconnecting switch and grounding switch" E2-M2 level disconnecting switch.
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Model composition
FLNSF6-24/T630
Operating conditions
installation site | In the box |
ambient temperature (℃) | -45~+140 |
height (m) | ≤2000 |
air humidity (%) | The daily average is not greater than 95% and the monthly average is not greater than 90% |
seismic intensity | No more than 8 degrees |
Load switch technical parameters
order number | project | unit | numeric value |
1 | rated voltage | kV | 24 |
2 | rated frequency | Hz | 50 |
3 | rated current | A | 630 |
4 | Rated peak withstand current | kA | 50;63 |
5 | Rated short-term withstand current/time | kA/s | 20/4;25/4 |
6 | Rated short-circuit closing current (peak) | kA | 50/63 |
7 | mechanical life | Next | ≥5000 |
8 | 1min power frequency voltage: phase to ground/disconnected (in SF6 gas) | kV | 65/79 |
9 | Lightning impulse withstand voltage (peak) phase to ground/discharge (SF6 gas medium) | kV | 125/145 |
Mechanical characteristics of load switches
order number | project | unit | numeric value |
1 | Touch pressure | N | 200±10 |
2 | Decoupling speed | ms | 4~6 |
3 | closing speed | m/s | 4~6 |
4 | Center-to-center distance | mm | 150 |
5 | Three-phase opening and closing at different periods | ms | ≤2 |
6 | Main circuit resistance | μΩ | ≤30 |
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