Overhead Line
3Way LBS
Features
The Joongwon 3 Way Load Break Switch is designed to meet increasing requirement of the electric utility industry, providing a safe, maintenance free, long life, economical device to perform load current breaking on overhead distribution lines.
Two independent switch disconnectors in one enclosure with the three tapped way can be used for easy and reliable line branching in 24kV(max.27kV) networks.
- Energy stored mechanism by spring charging – 5,000 mechanical endurance
- Automatic Load Transfer Switch
- Double sealing techniques with EPDM rubber
- Minimal maintenance required for the high voltage unit
- Overpressure relief device
- Low gas pressure interlock device
Switch position
Switch position with Earthing switch(optional only)
Ratings
Main switch : JW-3WAY
| Item | RATINGS |
|---|---|
| Rated system voltage(kV) | 12/15/17.5/24 |
| Rated continuous current(A) | 630 |
| 정Rated short-time withstand current(kA, rms) | 16 |
| Power frequency withstand voltage | |
| To earth and between phases(kV) | 50 |
| Across the isolating distance(kV) | 60 |
| Lighting impulse withstand voltage (1.2×50μs)(kV) | 125 / 150 (Optional) |
| Rated power frequency(㎐) | 50 / 60 |
| Phase spacing(mm) | 240 |
| External creep distance(mm) | 750 |
| Min. external strike distance(mm) | 260 |
| Max. opening time(sec) | ≤ 2 |
| Max. closing time(sec) | ≤ 2 |
| Insulating material | SF6 Gas |
| Ambient temperature(℃) | -25 to 70 |
| Ambient humidity(%) | ≤ 100 |
| Altitude(m) | ≤ 2 000 |
| Degree of protection | IPX7 |
| Mechanical endurance(times) | 5,000 |
| Rated control voltage(V) | AC 110 – 240 V / DC 24V |
| Weight(body)(kg) | 220 |
| Weight(controller)(kg) | 50 |
| Applied standard | IEC 62271-103 |
Earthing switch (optional)
| Item | RATINGS |
|---|---|
| Rated system voltage(kV) | 11-24 |
| Rated short-time withstand current(kA, rms) | 16 |
| Power frequency withstand voltage(kV) | 60 |
| Mechanical endurance(times) | 2,000 |
| Applied standard | IEC 62271-103 |