- Model AC - Voltage Test Transformer Systems



The AC test transformer are especially designed for testing high voltage products and components, such as cables, power transformers, gas-insulated switchgears, bushings and arresters. It is also suitable to test insulation materials. They are used to generate testing high voltage and function as part of the complete system. These systems are particularly suited for tests requiring stable voltage even if the load changes under voltage (corona, wet & pollution tests) or when the load is inductive (inductive voltage transformers). The AC test transformer can be either in insulation cylinder type with metallic cover and base or metal tank. The insulation cylinder modular test transformers can be stacked to connect in series or parallel to get larger voltage or current to extend its application range.

Main components:

  • switchgear cabinet

  • Voltage regulator

  • Test transformer

  • Damping resistance

  • voltage divider

  • Control and Measuring System (manual operation or computer-aided automatic systems)

Additional features and accessories:

  • Power noise filter

  • Isolation transformer

  • Harmonic filters to improve wave shape

  • Coupling capacitor

  • fixed or tunable compensation of capacitive testing power

  • Fast over-voltage protection device

  • Partial discharge (PD) measuring system including blocking impedance

  • Compressed gas capacitor

  • Capacitance and dissipation factor measuring instrument

  • Moveable design

  • Made solution upon customer's request

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