CONVENTIONAL GAS STATION SERVICE VOLTAGE TRANSFORMER

A legacy of durability

A legacy
of durability

CONVENTIONAL GAS STATION SERVICE VOLTAGE TRANSFORMER

550 kV

Station Service Voltage Transformers utilizing Conventional gas insulation provide low-voltage power directly from HV potential in substations, with the proven Trench design and highest reliability.

CHARACTERISTICS

  • For voltage levels up to 550 kV
  • Single phase units with power outputs <10kVA up to 333kVA
  • Complies with the specific requirements of the SSVT standard (dual IEC and IEEE logos)
  • Fully type-tested to international standards
  • Continuous gas density reading by gas density monitors and alarm thresholds. Analogue output signals are available on request

GENERALS

  • Designed and manufactured without partial discharge
  • Scalable design with 3 units in 3-phase systems or additional units connected in parallel
  • No maintenance for a long life of over 30 years

MAIN FEATURES

A Legacy of durability

Design

A safe and reliable design based on Trench's inductive voltage transformers with compressible conventional gas insulation and integral rupture disc. These SSVTs have been tested and proven in the field for over four decades.

Seismic

Exceptional seismic performance as a consequence of the optimized design of the composite insulator.

Low voltage Power supply

Optimized high-voltage coil for power output and specially designed low-voltage winding for power output. This allows a correspondingly large cross-section to be connected to the secondary outputs.

High Voltage insulation

The optimum field grading is achieved by a fine condenser grading system that has been designed specifically for this particular application.

Modula Design

Allows the use of reduced number of components

PRODUCT APPLICATIONS

Inside the
Trench
SF6 SSVT

Main components of
the SF6 Station Service Voltage Transformer

Field proven and maintenance-free Conventional Gas Insulated Inductive Station Service Voltage Transformer combines the advantages of an inductive voltage transformer with those of a small power transformer.

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