Conventional Gas Station Service Voltage Transformer

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.

Proven design

Trench SF6 Insulated Power Voltage Transformers (SSVTs) represent a proven design approved globally. Over a thousand SSVTs – with and without SF6 insulation – have been installed worldwide in all environmental conditions to the complete satisfaction of our customers.

Safety

Explosion proof design due to integrated rupture disc.

Power supply for remote areas.

Low voltage power supply derived directly from high voltage to supply energy to remote locations and equipment.

Auxiliary power supply for substation.

Low voltage power supply derived directly from high voltage to power equipment in the GIS substation.

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A legacy of durability

A legacy
of durability