Live tank circuit breaker

GL 313
Live Tank circuit breakers

Rated voltage 170 kV

Rated frequency 50/60 Hz

Rated normal current up to 3150 A

Rated short-circuit breaking current up to 40 kA

Rated short-circuit making current 104 kA

Temperatures off to -40 °C with pure SF6

Quick and easy installation and commissioning

Long service intervals

GE’s GL 313 live tank circuit breakers for outdoor installations are designed to operate at temperatures down to -55°C with mixed gases and -40°C with pure SF6 and are equipped with the latest technologies in the field of switching chambers and spring drives. Our latest double-motion technology effectively reduces the opening energy by approximately 65%. The GL 313 live tank circuit breaker ensures a high level of reliability, even in extremely difficult conditions and climates or in areas with high seismic activity.

The GL 313 circuit breaker is pre-adjusted at the factory before shipment. Thanks to this pre-assembly, no adjustments are necessary during installation and commissioning of the circuit breaker, allowing for quick and easy on-site installation with long maintenance intervals.

Components

  • Connection chamber with built-in double-motion technology and self-exhaust technology
  • Pressure relief system for passive protection of substation and personnel
  • Reliable, temperature-compensated density meter with two-stage signaling and three-color indicator
  • Easy access to the SF filling valve6 (DILO type)
  • Non-return (“control”) SF valve6 on each pole
  • Protected opening springs inside each pole
  • Hot galvanized steel parts
  • Drive casing made entirely of aluminum
  • Reliable spring-loaded drives with position indication easily visible from the outside

Options

  • Composite insulators
  • Larger distances between phases available on request
  • CBWatch3 monitoring system
  • RPH3 (F3) controller

Installation and maintenance

Factory adjustment before shipment, no adjustment during installation and commissioning
Independent disassembly of the connection chamber without dismantling the entire pole column.

Testing

GE live tank circuit breakers have met the requirements of national and international standards. This is confirmed by comprehensive testing based on the latest IEC and ANSI standards.

Quality

The entire development and production procedures of our live tank circuit breakers are fully compliant with the latest quality standards ISO 9001, ISO 14001 and OHSAS 18001. This ensures the high quality of our products and services, which is confirmed by regular audits.

Technical data GL 313

Circuit breaker type
GL 313 F1/4031 P
GL 313 F3/4031 P
Rated voltage, kV
170
Rated frequency, Hz
50/60
Rated current, A
≤3150
Rated short-circuit breaking current, kA
≤40
Rated short-circuit making current, kA
104
Rated short circuit duration, s
3
Opening time, ms
28
Turn off time, ms
50
Closing time, ms
≤70
Average ambient temperature, °C
-30 – + 40
Height, m above sea level
1000