If internal arcing occurs, the housing has an internal structure weak point, it will be rushed to open, followed by the cabinet above the shutter release arc red open air overpressure stream-oriented outside the cabinet, ensure that the switch cabinet security checks.
Load break switch sets closing, opening, earthing three at one, filled with SF6 gas encapsulated in epoxy resin housing, three-position interlock, have compact structure.
Small size, light weight, maintenance-free, easy and safe to operate.
| No. |
Item |
Unit | Data | ||
| 1 | Rated voltage | kV | 24 | ||
| 2 | Rated frequency | Hz | 50 | ||
| 3 | Rated current | A |
630 | ||
| 4 | Rated active load breaking current | 630 | |||
| 5 | Rated transferring current | 630 | |||
| 6 | Lightning impulse withstand voltage | kV | 125 | ||
| 7 | 1min power frequency withstand voltage | 65 | |||
| 8 | Rated short circuit breaking current(peak) | kA |
20 | ||
| 9 | Rated short-time withstand current(2s) | 20 | |||
| 10 | Rated peak withstand current | 50 | |||
| 11 | Rated short-circuit making current(peak) | 50 | |||
| 12 | Rated cable(line) charging breaking current | A | 10 | ||
| 13 | Phase distance | mm | 230 | ||
| 14 |
Mechanical life | Load switch | time | 3000 | |
| Earth switch | 2000 | ||||
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