Series Lndoor AC High Voltage Load Break Switch-Fuse Combination Apparatus
Specifications
The product realizes three working positions:power making,power breaking and earth.SPECIFICATION
FN5-12R(L) model indoor AC HV load break switch-fuse combination apparatus is developed and designed based on international technology and national power supply requirement, it passed all type tests and trial-operation inspections. The apparatus conforms to IEC420: AC LOAD BREAK SWITCH AND FUSE COMBINATION APPARATUS (1990 EDITION) and GB3804:3-63KV AC HV LOAD BREAK SWITCH VOLUME AND LIGHT WEIGHT. Compared to international product it keeps up with technical level with small volume and light weight. It is applicable in ring main unit and prefabricated substations as well as 12KV line and power distribution system. The product realizes three working positions : power making, power breaking and earth. It applies to power system of rated voltage 6-12KV,50/60HZ breaking load current ober load current and short-circuit current.
AMBIENT CONDITION
1. The altitude:under 1000M;
2. The ambient temeperature:-25C----+40C;
3. The relative humidity of air: monthly ≤90%,daily≤95%.
4. Ampitude:Earthquake degree 8;
5. Application occasions should free from fire, inflammables, Explosives, corrosives and severe vibration.
TECHNICAL SPECIFICATION
| Rated voltage KV | 1 min frequency voltage KV | Rated current A | 4S thermal current A | Dynamic current(peak) KA | Rated breaking current A | Short circuit close current KA |
| 12 | 42 | 100 | 12.5 | 31.5 | 400 | 31.5 |
| 48 | 630 | 20 | 50 | 630 | 50 |
OVERALL DIMENSION
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