CONVENTIONAL GAS COMBINED TRANSFORMER
A legacy of durability
A legacy
of durability
CONVENTIONAL GAS COMBINED TRANSFORMER
800 kV / 6000A
Combi Voltage Transformers utilizing conventional gas as insulation medium provide accurate and reliable voltage transformation (measurement) merging the proven Trench design and highest reliability.
CHARACTERISTICS
- For voltage levels up to 800 kV
- For currents up to 6000A
- Meet all lEC and ANSI metering and protection classes
- Fully type tested according to international standards
- SF6 as insulation medium
BENEFITS
- Explosion-proof design in accordance with IEC 61869-1 Class II verified in tests
- SF6 does not cause or spread fire under any circumstances
- No aging of the insulation gas
MAIN FEATURES
A Legacy of durability
Design
The explosion proof design of the Trench gas insulated instrument transformers is based on the use of compressible gas as insulation medium and the built-in rupture disc.
Seismic
Excellent seismic performance as a consequence of the optimized design of flanges, composite insulators and their interconnection.
High Current
The bar-type primary conductor is designed for high service short-circuit current and prevents high voltage drops in the primary winding
High Voltage insulation
Superior control of internal and external insulation stress due to the use of a proprietary system of finely graded bushings.
Maintenance
Maintenance-free and therefore cost- and time-saving over a service life of more than 30 years.