GL 309 Live tank circuit breaker for 72.5 kV Brochure GB0 pages
I CIRCUIT BREAKERS
nnnnGL309
nnnnLive tank circuit breaker for 72.5 kV
nnnnLive tank circuit breakers for outdoor installation provided with third-generation self-blast interrupter
nnnnchamber and FK3 spring-operated mechanism. The field-proven interrupter chamber operates on the basis
nnnnof the energy-optimised self-blast principle.
nnnnProduct description
nnnn1 Porcelain interrupter chamber
nnnn2 Porcelain post insulator
nnnn3 Base frame
nnnn4 Spring-operated mechanism
nnnn5 Supports
nnnnComponents
nnnn■ Third-generation self-blast interrupter chamber
nnnn■ Pressure relief system for passive protection of both substation and personnel
nnnn■ Field-proven temperature-compensated density monitor with two-stage transducer and
nnnnthree-colour dial
nnnn■ Easy access to the SF6 filling connection (type DILO)
nnnn■ SF6 non-return (check) valve on each pole column
nnnn■ Protected opening springs inside each pole column
nnnn■ Hot-dip galvanised steel parts
nnnn■ Mechanism housing completely made of aluminium
nnnn■ Reliable spring-operated mechanism with position indicator clearly visible from outside
nnnnInstallation and maintenance
nnnn■ Completely assembled (pole columns and base frame); no adjustments necessary during
nnnninstallation and commissioning
nnnn■ Pole units pre-filled with SF6 at factory before shipping
nnnn■ Separate disassembly of the interrupter chamber without having to remove the
nnnnentire pole column
nnnnTesting
nnnnLive tank circuit breakers meet the requirements of national and international standards. This
nnnnhas been confirmed by comprehensive type tests according to the latest IEC and ANSI
nnnnstandards.
nnnnProven quality
nnnnOur quality (ISO 9001:2000), environmental
nnnn(ISO 14001) and occupational health and
nnnnsafety (OHSAS 18001) management
nnnnsystems determine the development and
nnnnproduction procedures for our high voltage
nnnncircuit breakers. These systems ensure the
nnnnhigh quality standards of our products and
nnnnservices confirmed by regular audits.
nnnnCustomer Benefits
nnnn• Temperatures down to -40°C with
nnnnpure SF6 (no gas mixture)
nnnn• Quick and easy installation and
nnnncommissioning (pole columns and
nnnnbase frame completely assembled)
nnnn• Long maintenance intervals
nnnnGRID
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