Polymer Bushing for Switchgear
PRODUCTS
APPLICATION
Bushings are used to provide the essential insulation when a high voltage line passes through a metal sheet or
frame that is at ground potential. Primary Disconnect Bushings are the key components of the switchgear
that serve as the connection points to energize the network downstream of the switchgear.
Bushings are used to provide the essential insulation when a high voltage line passes through a metal sheet or frame that is at ground potential.
Primary Disconnect Bushings are the key components of the switchgear that serve as the connection points to energize the network downstream of the switchgear.
CHARACTERISTIC
- Switchgear and power apparatus installations
- Designed for extreme environmental conditions
- Cast in high dielectric strength grey silicone
Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to fit customer’s requirements.
Specifications shown below can be adjusted, without notice, to improve its performance.
The product can be customized to
fit customer’s requirements.
SPECIFICATION
| Specifications | Units | 17.5 | 27 | 36 |
|---|---|---|---|---|
| Rated voltage | kV | 17.5 | 27 | 36 |
| Rated normal current | A | ≤630 | ||
| Power frequency withstand voltage (Dry) | kV | 50 | 60 | 80 |
| Power frequency withstand voltage (Wet) | kV | 38 | 50 | 70 |
| Lightning impulse flashover voltage | kV | 125 | 150 | 180 |
| Leakage distance | mm | 770 | 910 | 1320 |
| Arcing distance | mm | 310 | 360 | 490 |
| PD (1.5 Um /√3) | pC | ≤10 | ≤10 | ≤10 |
| Flammability grade (UL 94) | – | V-0 | ||