Ningbo Tianan (Group) Co.,Ltd.
Ningbo Tianan (Group) Co.,Ltd
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General
FN12 Series AC HV Load Switch is a kind of three phase high voltage switch apparatus, suitable for
12kV rated voltage, 50Hz rated frequency alternative current, It is mainly used in downtown power distribution station and industrial electric equipment of three phase ring main unit electricity circle or terminal power supply, for breaking and closing short circuit current.
Technical parameter
| No. | Item | unit | Parameter |
| 1 | Rated Voltage | kV | 12 |
| 2 | Max. Working Voltage | kV | 12 |
| 3 | Rated Frequency | Hz | 50 |
| 4 | Rated Current | A | 100 |
| 5 | Rated Short-circuit Switch-off Current | kA | 50 |
| 6 | 1min Power Frequency Withstand voltage(value), to ground, interphase/isolation break | kA | 42/48 |
| 7 | Lighting Impluse Resisting Voltage (peak) to ground, interphase/isolation break | kV | 75/85 |
| 8 | Fuse Link Striking Output Energy | Kg | ≈5 |
| Technical Parameter of load switch with fuse | |||
| No. | Item | Unit | Parameter |
| 1 | Rated Voltage | kV | 12 |
| 2 | Max. Working Voltage | kV | 12 |
| 3 | Rated Frequency | Hz | 50 |
| 4 | Rated Current | A | 630 |
| 5 | Rated Power load switch-off current | A | 630 |
| 6 | 5% rated power load switch-off current | A | 31.5 |
| 7 | Rated capacity switch-off current | A | 10 |
| 8 | Rated inductance switch-off current | A | 40 |
| 9 | Rated transfer current | kA | 1.3 |
| 10 | Rated short-time withstand current | kA | 20 |
| 11 | Rated peak withstand current | kA | 50 |
| 12 | Mechanical endurance | cycle | 2000 |
