The KV50-200 MK2 Test System is a high power, high voltage ac test set designed for insulation testing. This system is equally suited to both development and routine testing of electrical insulation systems and plant.

The equipment consists of a control unit and a separate oil filled high voltage transformer, linked by 5 meter supply and control cables. The control unit is fitted with a comprehensive range of facilities for control, metering and protection. The system includes a secondary tap metering as standard to ensure accurate voltage metering. The output voltage and current are displayed on large, linear analogue instruments, and a variable electronic trip is provided, allowing the trip current to be set to 10-110% of rated output.

The high voltage transformer is housed in an oil-filled steel tank fitted with swivel castors for mobility. The units use a low-discharge oil-filled bushing for the HV output. The KV50-200 MK2 Test System is equally suited to testing capacitive, resistive or inductive test objects.

The output of the units are protected by variable electronic trips monitoring the output current, and a fixed over-current trip on the primary of the output transformer. The variable trip is adjustable in 10% steps between 10% and 110% of the rated output current. The input and control supplies are protected by fuses. An earth terminal is provided on the transformer which must be connected to a low impedance local earth.