FN5-12 type indoor high voltage load switch and fuse combination electrical appliance, Applicable to AC 50Hz, 12kv power distribution network, used for breaking load current and closing short circuit current.
Category: Switchgear & High Voltage Products
Brand: JGGY Electric
Model: FN5-12R
Power: 12KV/ 630A
FOB Port: Ningbo/Shanghai
Terms of Pyament: Western Union,T/T,Paypal
FN5-12 type indoor high voltage load switch and fuse combination electrical appliance, Applicable to AC 50Hz, 12kv power distribution network, used for breaking load current and closing short circuit current. Load switch with fuse cut off the short-circuit current, for protection switching purposes.
Environmental requirements
1. The altitude does not exceed 1000m;
2. Ambient air temperature: upper limit + 40°C, lower limit -25°C (electric mechanism not lower than -5°C);
3. Relative humidity: daily average value not more than 95%, monthly average value not more than 90% (+25℃);
4. The surrounding air should not be obviously polluted by corrosive or flammable gas, water vapor, etc.;
5. No frequent severe vibration.
Note: If it exceeds the requirements of the above normal use environmental conditions, it is necessary to negotiate with the manufacturer.
Name | Unit | Date | |
Rated Voltage | kV | 12 | |
Rated Frequency | Hz | 50 | |
Rated Current | A | 400 | 630 |
Rated Short-Time Withstand Current(Thermally Stable Current) | kV | 12.5(4s) | 20(2s) |
Rated Peak Withstand Current (Dynamic Steady Current) | kA | 31.5 | 50 |
Rated Closed- Loop Breaking Current | A | 400 | 630 |
Rated Active Load Breaking Current | A | 400 | 630 |
5% Rated Active Load Breaking Current | A | 20 | 31.5 |
Rated Cable Charging Breaking Current | A | 10 | |
Rated Breaking No-Load Transformer Capacity | 1250 | ||
Rated Short Circuit Closing Current | kA | 31.5 | 50 |
Load Current Breaking Times | Times | 20(100% Load) 35(60% Load) 75(30% Load) 80(5% Load) | |
1 min Power Frequency Withstand Voltage(Effective Value) | kV | 42 Ground and Phase | |
Power Frequency Withstand Voltage (Between Isolation Gaps) | kV | 48 | |
Lightning Impulse Withstand Voltage(Peak) | kV | Ground and Phase 75, Isolation Fracture 85 | |
Opening and Closing Operation Torque (Force) | N.m(N) | 90(180) | 100(200) |
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