| | · | Excellent breaking capability by puffer extinction method | · | Adoption of high capable and reliable hydraulic mechanism for circuit breaker | · | High insulation and reliability by metal enclosure filled with SF6 gas | · | Stability improvement by conductive and operating parts installation inside of the enclosure | · | Remarkable installation area reduction by compact design | · | Certificated by the IEC and ES(Standard Technical Specifications of KEPCO) | · | One phase in one enclosure type | · | Easy transport, installation and maintenance during GIS working | | | | | Item | 800kV GIS | Model | 800SR | Rated Voltage (kV rms) | 800 | Rated Short-circuit Breaking Current (kA rms) | 50 | Rated Current (A rms) | 8000 | Rated Frequency (Hz) | 50 / 60 | Rated Power Frequency Withstand Voltage (kV rms) | 830 | Rated Lightning Impulse Withstand Voltage (kV peak) | 2250 | Rated Switching Impulse Withstand Voltage (kV peak) | 1425 | Rated Gas Pressure (Mpa) | 0.7 / 0.4 | | | | | 800SR | · | Circuit Breaker | | - Puffer method for arc extinction operated by hydraulic operation | · | High Speed Grounding Switch | | - Puffer method for arc extinction operated by hydraulic operation | · | Make-proof Earthing Switch | | - Motor spring operation | · | Disconnector Switch | | - Motor spring operation | · | Earthing Switch for Maintenance | | - Hand operation | | |