Highly Reliable Performance

GE’s GL 107X live tank circuit breakers for outdoor installation are provided with third-generation self-blast interrupter chambers and spring-operated mechanisms. The field-proven interrupter chamber operates on the energy-optimized self-blast principle. This live tank circuit breaker provides a high level of reliability for customers, even under extreme conditions and climates or in highly active seismic areas.

The GL 107X live tank circuit breaker is preset, pre-filled with SF6 and completely assembled at the factory before shipping (pole columns, base frame and spring-operated mechanism). 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.

GL 107X

Live tank circuit breaker from 36 kV up to 40.5 kV
Highly Reliable Performance

GE’s GL 107X live tank circuit breakers for outdoor installation are provided with third-generation self-blast interrupter chambers and spring-operated mechanisms. The field-proven interrupter chamber operates on the energy-optimized self-blast principle. This live tank circuit breaker provides a high level of reliability for customers, even under extreme conditions and climates or in highly active seismic areas.

The GL 107X live tank circuit breaker is preset, pre-filled with SF6 and completely assembled at the factory before shipping (pole columns, base frame and spring-operated mechanism). 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 107X live tank circuit breaker provides high reliability based in part on high quality components, including:

  • Third-generation self-blast interrupter chamber
  • Operating linkages in one common gas enclosure forming part of the base frame
  • Only one seal is dynamically stressed
  • Insulator flanges sealed with Portland cement
  • Pressure relief system for passive protection of both substation and personnel
  • Compact design in line with considerations of current transformers
  • Field-proven, temperature-compensated density monitor with two-stage transducer and three-color dial
  • Easy access to the SF6 filling connection (type DILO)
  • Extruded aluminum base frame
  • Reliable spring-operated mechanism with position indicator clearly visible from outside

Installation and Maintenance

  • Preset at factory before shipping; no adjustments necessary during installation and commissioning
  • Pre-filled with SF6 at factory before shipping
  • Circuit breaker completely assembled before delivery (pole columns, base frame and spring-operated mechanism

Advanced Testing

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.

Certified Quality

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.

 

Specifications

Breaker typeGL 107X F1/3120GL 107X F1/3120GL 107X F1/3120
Rated voltage36 kV38 kV40.5 kV
Rated frequency50 Hz60 Hz50 Hz
Rated normal currentup to 2,000 Aup to 2,000 Aup to 2,000 A
Rated short-circuit breaking currentup to 31.5 kAup to 25 kAup to 31.5 kA
Rated short-circuit making current80 kA65 kA80 kA
Rated duation of short-circuit3 s3 s3 s
Opening time29 ms29 ms29 ms
Breaking time50 ms50 ms50 ms
Closing time58 ms58 ms58 ms
Average ambient temperature*-30 oC up to +40 oC-30 oC up to +40 oC-30 oC up to +40 oC
Design altitude*1,000 m.a.s.l.1,000 m.a.s.l.1,000 m.a.s.l.
* Standard values according to IEC; temperatures up to +70 oC and / or higher altitudes available on request
 

Drawings