Live tank circuit breakers from 145 kV up to 170 kV
Reliable Performance in Low Temperatures
GE’s GL 313 live tank circuit breaker for outdoor installation is designed for temperatures down to -55°C with gas mixture and -40°C with pure SF6, and feature the latest technologies in interrupter chambers and spring-operated mechanisms. Our latest double motion technology effectively reduces the opening energy by approximately 65%. The GL 313 live tank circuit breaker provides a high level of reliability, even under extreme conditions and climates, or in highly active seismic areas.
The GL 313 circuit breaker is preset and pre-filled with SF6 at the factory before shipping. Due to this preassembly, no adjustments are necessary during installation and commissioning of the circuit breaker which allows for quick and easy installation on site with long intervals between maintenance.
High Quality Components
The GL 313 live tank circuit breaker provides high reliability based in part on high quality components, including:
Installation and Maintenance
Our live tank circuit breakers meet the requirements of national and international standards. This has been confirmed by comprehensive type tests according to the latest IEC and ANSI standards.
The entire development and production procedures for our live tank circuit breakers are fully compliant with the latest ISO 9001 ISO 14001 and OHSAS 18001 quality standards. This ensures the high quality of our products and services, which is confirmed by regular audits.
|Breaker type||GL 313 F1/4031 P / GL 313 F3/4031 P|
|Rated voltage||170 kV|
|Rated frequency||50/60 Hz|
|Rated normal current||up to 3,150 A|
|Rated short circuit breaking current||up to 40 kA|
|Rated short circuit making current||104 kA|
|Rated duration of short circuit||3 s|
|Opening time||28 ms|
|Break time||50 ms|
|Closing time||≤70 ms|
|Average ambient temperature *||-30 °C up to +40 °C|
|Design altitude *||*1,000 m.a.s.l.|
|* Standard values according to IEC; temperatures down to -55 °C up to +70 °C and/or higher design altitudes available on request.|