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| Max. Working Voltage: | 12 Kv | Rated Frequency: | 50 Hz |
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| Rated Current: | 100A | Rated Short-Circuit Switch-off Current: | 50 Ka |
| High Light: | vacuum load break switch,sf6 load break switch |
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10KV AIternative Current Vacuum Load Switch Fuse Combined Apparatus
NINGBO TIANAN (GROUP) CO., LTD.
General
FN5-12FN5-12RDFN5-12R Series lndoor AIternative Current High Voltage Load switch is sultable in 50Hz L0kV alternative current power grid for breaking load current and closing short circuit current. Load switch with fuse Can close and open short circuit current for protection. 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.
Service condition
1. The altitude does not exceed 1000m.
2. The ambient air temperature: Highest:+40oC, the lowest:-10oC
3. The relatire Humidity of air not bigger 90% (around the 25oC envirenment)
4. The working situation have no conductivity dust.
5. The working situation have no corrosive gas of affect insulation and destroy metal.
6. The working situation without violent vibration and striking.
7. The working situation have no explosive danger and fire.
Technical parameter
| S/N | Name | Unit | Value | |
| 1 | Rated voltage | kV | 10 | |
| 2 | Max working voltage | kV | 12 | |
| 3 | Rated frequency | Hz | 50 | |
| 4 | Rated current | A | 400 | 630 |
| 5 | Rated short-time withstand current (Thermal stability current) | kA/s | 12.5/4 | 20/2 |
| 6 | Rated peak withstand current (Dynamic current) | kA | 31.5 | 50 |
| 7 | Rated closed-loop breaking current | A | 400 | 630 |
| 8 | Rated active load breaking current | A | 400 | 630 |
| 9 | 5% rated active load breaking current | A | 20 | 31.5 |
| 10 | Rated cable charging breaking current | A | 10 | |
| 11 | Rated short-circuit making current | 1250kVA no-load current of transformer | ||
| 12 | Load current breaking times | kA | 31.5 | 50 |
| 13 | Rated no-load transformer breaking current | Load/Times |
100%/20 60%/35 |
30%/75 5%/80 |
| 14 | 1min power frequency withstand voltage (r.m.s) To earth, between phases / to isolating distance | kV | 42/48 | |
| 15 |
Power withstand voltage Isolating distance |
kV | 53 | |
| 16 | Lightning impulse withstand voltage (peak)To earth, between phases/isolating distance | kV | 75/85 | |
| 17 | Opening-closing operation torque (force) | N·m | 90(180) | 100(200) |
Contact Person: Ms. Lian Huanhuan
Tel: +86-13858385873
Fax: 86-574-87911400
