Ningbo Tianan (Group) Co.,Ltd.
Ningbo Tianan (Group) Co.,Ltd
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12KV Indoor HV AC Vacuum Load Switch - Fuse Combination Apparatus
Overview
FN16A-12RD/200-31.5 Type combination units within FN16A-12 in combination with a high-voltage load switch current limiting fuse together the indoor high voltage switchgear, the upper end of the fuse is fixed to the lower bracket of the vacuum interrupter, the lower end is fixed to the seat by contacting the insulator, lower bracket grounding switch and fuse together. Grounding switch and disconnecting switch with mechanical interlock.It can break load current,overload current and short circuit current.
Technical Parameters: Load switch - fuse combinations
| No. | Item | Unit | Parameters |
| 1 | Rated voltage | kV | 12 |
| 2 | Rated frequency | Hz | 50 |
| 3 | Maximum rated current fuse | A | 200 |
| 4 | Rated transfer current | A | 3150 |
| 5 | Melting tube trigger opening time of the switch | ms | 31 (0 + 5) |
| 6 | Rated short circuit breaking current (expected value) | kA | 31.5 |
| 7 | Rated short-circuit current (prospective peak) | kA | 80 |
| 8 | 1 min power frequency withstand voltage (rms) to ground, interphase, vacuum fracture / isolation fracture | kV | 42/48 |
| 9 | Lightning impulse withstand voltage (peak) to ground, interphase, vacuum fracture / isolation fracture | kV | 75/85 |
| 10 | Fuse link striking output energy | J | 2 ~ 5 |
| 11 | Net weight | kg | 75 |
| 12 | Dimensions | mm | 720 x 490 x 4065 |
| 13 | Package dimension | mm | 1115 x 900 x 520 |
| Type | Rated voltage (kV) | Fuse rated current(kA) | Rated breaking current(kA) | Melt the rated current(A) |
| SDLAJ.XRNT | 12 | 40 | 31.5,40,50 | 6.3,10,16,20,25,31.5,40 |
| SFLAJ.XRNT | 100 | 50, 63, 71, 80, 100 | ||
| SKLAJ.XRNT | 125 | 125 | ||
| German company SBA | 12 | 200 | 40 | 160, 200 |
