The T&R KV50-100 High Voltage AC Tester consists of a control unit and a separate oil filled high voltage transformer, linked by 5 metre supply and control cables. The T&R KV50-100 is ideal for testing on capacitive, resistive or inductive loads with an output voltage of up to 50kV AC, a current output of up to 100mA and a maximum charging capability of 5kVA.
The T&R KV50-100 control unit is fitted with a comprehensive range of facilities for control, metering and protection. 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 unit uses a high voltage bushing for the HV output and the other end of the HV winding is earthed.
The output voltage is set by a continuously variable output control with a zero volt interlock meaning that the output may only be switched on with the control in the zero position. An external interlock circuit is also provided, allowing external emergency off buttons and test cage door interlocks to be fitted. The mains supply switch is key operated with the key trapped in the switch in the 'on' position. The KV50-100 is protected by variable electronic trips monitoring the output current and a fixed over-current trip on the primary of the transformer. An earth terminal is provided on the transformer which must be connected to a low impedance local earth.
T and R KV50-100 mk2 Features:
0-50kV output voltage, continuously variable from 0V
5kVA output capability
Key operated supply switch to prevent unauthorised operation
Dual overload protection
Variable electronic trip - 10-110% of rated output