Electric transmission and substation equipment.
170kV Gas Insulated Switch Gear
The main equipment used in a substation, including a circuit breaker, disconnector, earth switch, potential transformer, current transformer, bus and lightning arrester, are built into a casing for insulation. SF6 gas, which has excellent arc extinguishing properties, is filled in to organize the electric power system. This is core equipment in a substation.
Characteristics of the Product
- Each component and device is designed to allow for easy separation and withdrawal considering ease of inspection, maintenance and repair.
- A hydraulic mechanism with high performance and reliability is applied to the actuator for a circuit breaker.
- A 3-Position Switch is applied that integrates the functions of a disconnector and earth switch.
- Control devices with high reliability and surveillance by various sensors are provided.
|Rated Voltage (kV)||170|
|Rated current(A)||2000 / 3000|
|Rated interrupting current(kA)||50|
|Power frequency withstand voltage(kV)||325/375|
|Lightning impulse withstand voltage(kV)||725/860|
|Rated short time withstand current (kA)||50|
|Rated SF6 Gas pressure
(kgf/c㎡·G at 20°C)
|Circuit breaker class||E1 / C2 / M2|
|Manipulating method||circuit breaker||three-phase encapsulated hydraulic manipulation|
|disconnector||three-phase encapsulated electric manipulation/electric spring manipulation|
|Earthing switch||three-phase encapsulated manual manipulation/electric spring manipulation|