Underground Line
Pad Mounted Switchgear (SF6)
Features
◆ Suitable for the current trend of padmounting process line
◆ Excellent interrupting and insulating abilities of SF6 GAS
◆ Switching on/off the load current of padmounted power distribution line, for division and tapping of lines
- Reliable Insulation and Interrupting Capacity
A perfect interruption is guaranteed because of excellent insulation and interrupting capacity of SF6 GAS.
SF6 GAS is incombustible, so there is absolutely no risk of fire.
By selecting a Puffer interruption method, where SF6 GAS in a cylinder is compressed, the product shows excellent making and breaking abilities.
Flash Over due to making/breaking surge and cable loading current, which occurs during vacuum interruption doesn’t occur. - High Safety and Maintenance Free
SF6 Gas is incombustible, which eliminates the danger of fire in any indoor/outdoor environment.
SF6 gas is non-toxic to human body and is therefore highly stable.
Maintenance is nearly unnecessary as the product has complete airtightness and simple control parts via TIG welding. - Water Proof & Rust Prevention
The body of the switch has been welded with stainless steel and covered with epoxy tar film, making it rust-proof. - Compact Design
A compact design was achieved through SF6 Gas insulation method and simple control, which minimizes the room needed for installation.
Ratings
| Type | 4W×4S Auto | 4W×4S Manual | 3W×3S Manual | |
|---|---|---|---|---|
| Rated Voltage(kV) | 25.8 | |||
| Rated current(A) | 600 | |||
| Rated power frequency(Hz) | 60 | |||
| Current breakingcapacity | 100% Load current(A) | 600 | ||
| Field current(A) | 21 | |||
| Cable charging current(A) | 25 | |||
| Line charging current(A) | 1.5 | |||
| Loop current(A) | 600 | |||
| Rated short-time withstand current(kA) | 12.5kA | |||
| Rated making current(kV peak) | 32.5kA | |||
| Power frequency withstand voltage(kV) | 60kV | |||
| Direct current withstand voltage(kV/15min) | 78 | |||
| Rated lighting impulse withstand voltage(kV) | 125kV | |||
| Inside pressure | Minimum(MPa) | 0.01 | ||
| (at 20℃) | Normal(MPa) | 0.05 | ||
| Operating method | Auto / Manual | Manual | ||
| Insulation medium | SF6 Gas | |||
| (kg) / Weight | 580kg | 480kg | 390kg | |
| Applied standard | ES 5925-0002 | |||
Switch Type
| Product number | Symbol | Installation | Number of circuits | Operating method |
|---|---|---|---|---|
| 108203 108185 |
44-D-M-125 44-D-A-125 |
On-site |   |
Manual Automatic |
| 108187 | 33-D-M-125 | On-site |  |
Manual |