In addition to the Short-circuit withstand test in this Laboratory the following tests on Distribution and Power Transformers are usually carried out: Measurement of no-load loss and current at 90 % and 110 % of rated voltage, Measurement of dissipation factor (tan δ) of the insulation system capacitances,…

The synthetic testing is the more economical test method in the event the requested power in direct testing is higher than the power available from the Short-circuit Generator (or from a suitable HV Line). 

In a High Power Laboratory for direct testing the applied voltage, current, transient and recovery voltages, reproducing the normal and abnormal (such as short-circuit) operating conditions of the equipment, are obtained from a single power source. The Laboratory must be supplied by an external HV Line or …

Resonant test systems are applied for the generation of high- voltage AC of power frequency for routine, type and develop- ment testing of capacitive test objects. There are two types: steel tank type WR and modular insulating case type WRM.The main advantage of the resonant test systems is the low power deman…

The impulse voltage generators / series G are the main component of impulse voltage test systems, series G (see Data Sheet 3.10), ranging from 1000 kV up to 6000 kV cumulative charging voltage.They are designed for testing high voltage equipment of power systems with lightning impulses (LI: 1.2/50 µs) and switchin…