Overhead Line
Fault Interrupter (Solid)
Features
The Joongwon Fault Interrupter is designed to meet increasing requirement of the electric utility industry, providing a safe, maintenance free, long life, economical device to perform fault current interrupting on overhead distribution lines. The Joongwon Fault Interrupter is applicable to 24kV(max.27kV) power distribution systems and substation. It can be operated manually or electrically via controller should be mounted to the pole mounting frame.
- Ability to perform as a recloser, sectionalizer or automated load break switch
- Proven design rated for 10,000 full load operations
- Hydrophobic Cycloaliphatic Epoxy (HCEP) insulation provides industry leading reliability
- Stainless steel construction for durability in any environment
- Air insulation for an environmentally friendly design
- Minimal maintenance required for the high voltage unit
Ratings
| Item | JWFI-4A | JWFI-4M | JWFI-8 |
|---|---|---|---|
| Rated system voltage(kV) | 25.8(max. 27) | ||
| Rated continuous current(A) | 400 | 800 | |
| Power frequency withstand voltage(kV) | |||
| Dry (1min.) | 60 | ||
| Wet (10sec.) | 50 | ||
| Lighting impulse withstand voltage (1.2×50μs)(kV) | 150 | ||
| Rated power frequency(㎐) | 60 | ||
| Short-circuit breaking current(kA) | 12.5 | ||
| Short-circuit making current(kA) | 32.5 | ||
| Rated short-time withstand current(kA/1s, rms) | 12.5 | ||
| Rated interrupting time(sec) | 0.050 | ||
| Rated closing time(sec) | 0.070 | ||
| Insulating medium | Epoxy | ||
| Ambient temperature(℃) | -30 to 50 | ||
| Ambient humidity(%) | ≤ 100 | ||
| Altitude(m) | ≤ 1 000 | ||
| Mechanical endurance(times) | 5,000 times | ||
| Rated control voltage | AC 220 V / DC 24V | ||
| Weight(body)(kg) | 160 | ||
| Weight(controller)(kg) | 40 | ||
| Operating method | Auto | Manual | Auto |
| Applied standard | IEC 62271-111 & KEPCO spec. | ||