Overhead Line
Sectionalizer
Features
The Joongwon SF6 Gas Insulated Sectionalizer is designed to meet increasing requirement of the electric utility industry, providing a safe, low maintenance, long life, economical device to perform load switching on overhead distribution lines. The switch is applicable to 17(max. 17.5) , 27(max. 27), 38(max. 38)kV the overhead distribution systems. It can be operated manually or electrically via controller with FTU and should be mounted to the cross arm of a pole.
The switch will be of three-phase design to maintain an open/closed state regardless of the energized status of the circuit and we provide you the operating rod for manual operation.
- Pure puffer techniques, no leakage current path between open contacts.
- Simple operating mechanism
- Switchgear vessel made of stainless steel.
- Double sealing techniques with EPDM rubber
- Minimal maintenance required for the high voltage unit
- Easy installation and operation
- Overpressure relief device
- Low gas pressure interlock device
Ratings
| Item | RATINGS | ||
|---|---|---|---|
| Type | JWSEC17 | JWSEC27 | JWSEC38 |
| Rated system voltage(kV) | 17.5 | 27 | 38 |
| Rated current(A) | 630 | 630 | 630 |
| Rated frequency(㎐) | 50 / 60 | 50 / 60 | 50 / 60 |
| Rated short-time withstand current(1s)(kA, rms) | 16 | 16 | 16 |
| Rated short-circuit making current(Peak)(kA, rms) | 41.6 | 41.6 | 41.6 |
| Lighting impulse withstand voltage (1.2×50μs)(kV) | 110 | 150 | 170 |
| Power frequency withstand voltage (1min)(kV) | 50 | 60 | 70 |
| Rated gas Pressure(at 20℃, gauge)(MPa) | 0.07 | 0.07 | 0.07 |
| Gas capacity(Liter) | 125 | 135 | 140 |
| Bushing Material | Polymer | Polymer | Polymer |
| Weight(body)(kg) | 100 | 120 | 130 |
| Weight(controller)(kg) | 60 | ||
| Insulating material | SF6 Gas | ||
| Mechanical endurance(times) | 10,000 | ||
| Rated control voltage(V) | AC 110 – 240 V / DC 24V | ||
| Operating Method | Electric / Manual | ||
| Surge Arrester | Option | ||
| Terminal Type | Nema 2hole, Clamp, Busbar | ||
| Ambient temperature(℃) | -25 to 70 | ||
| Ambient humidity(%) | ≤ 100 | ||
| Altitude(m) | ≤ 3 000 | ||
| Applied standard | IEEE Std. C37.63 | ||