Tank Type HV AC Test Transformers

Applications

Applications of Tank Type HV AC Test Transformerscovered include testing according to IEC, ANSI / IEEE & other national standards. Test objects covered are:
  1. Power transformers
  2. Instrument transformers
  3. Insulators
  4. Bushings
  5. GIS

Parameter

AC test system Type kV - kVA Regulating transformer Type  kVA for cont. duty Compensating reactor  kVA for cont. duty Coupling capacitor
kV - nF
200-300 100 400 300-1
400-1600 500 2100 400-1
500-500 150 750 500
650-650 250 1200 700
900-900 300 1200 900-1

Advantages

  1. Versatile voltage range
  2. Acoustic Noise Level < 65 dBA
  3. Sophisticated protections
  4. External Oil Expansion vessel possible
  5. Suits different applications
  6. Silent
  7. DUT and personnel are safe
  8. Transformer is protected
  9. PD-free (option)

Description

Tank Type HV AC Test Transformers are especially designed for testing objects of medium capacitance in the factory, indoor or outdoor. These systems are particularly suited for tests requiring stable voltage even if the load changes under voltage (heavy corona, wet & pollution tests) or when the load is of inductive kind (inductive voltage transformers). The system duty cycle can be freely chosen and is insured by adding radiators or forced oil-cooling to the transformers. These systems are also suited for continuous duty, long duration tests.
The neutral end of the high-voltage winding is brought out insulated. The high-voltage end is brought out through the transformer bushing. Either an oil-air or oil-SF6 bushing can be used depending of the application. The bushing is chosen according to the ambient conditions and is capacitively graded for the upper voltages. Upon request, the bushing can be fitted with a measurement tap. An aluminium top electrode is placed on the bushing to allow a PD free operation up the rated voltage. An angle with a multi-contact plug allows to connect mechanically and electrically a high voltage connection.Transformer specifically designed for all outdoor weather conditions are available.

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