double wound step up transformer is used for boosting the
voltage. The transformer is made of super enameled wire, CRGO
core and polyster film/paper for insulation.
step less auto-transformer is used for controlling the output
from zero to maximum. The auto-transformer has built in
arrangement for zero start interlocking.
230 or 400 volts single phase 50 Hz AC supply.
Up to 300 KV
Up to 50mA on HV side.
Continuous for testing and 15 minutes at full load
to control the output voltage from zero to maximum or push
button n case
of motorized model.
to control the tripping current in steps.
coil / digital KV meter and milliamp meter will be provided to
indicate output Voltage and leakage current.
negative and positive terminals are brought out on suitable
insulators. Positive or negative polarity can be supplied at
Earth Potential on request.
unit consists of fast acting DC relay which actuates
testing current goes beyond the pre-set level. b) The HV will not
variac is not at zero position (To protect the transformer
HV side & to protect the operator)
diodes with RC network are used for rectification in bridge or
doubler or multiplier or half wave circuit.