Technical
Details
TRANSFORMER
:
A
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.
VOLTAGE
CONTROL :
A
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.
INPUT
VOLTAGE :
230 or 400 volts single phase 50 Hz AC supply.
OUTPUT
VOLTAGE :
Upto 300 KV
CAPACITY
:
Upto 50mA on HV side.
RATING
: Continuous
for testing and 15 minutes at full load
CONTROL
:
-
Knob
to control the output voltage from zero to maximum or push
button n case
of motorized model.
-
Knob
to control the tripping current in steps.
METERING
:
Moving
coil / digital KV meter and milliamp meter will be provided to
indicate output Voltage and leakage current.
TERMINATING
:
The
negative and positive terminals are brought out on suitable
insulators. Positive or negative polarity can be supplied at
Earth Potential on request.
PROTECTION
:
The
unit consists of fast acting DC relay which actuates
instantaneously if
the
testing current goes beyond the pre-set level.b) The HV will not
actuate
if
variac is not at zero position (To protect the transformer
against transients
on
HV side & to protect the operator)
RECTIFIER
:
Silicon
diodes with RC network are used for rectification in bridge or
doubler or multiplier or half wave circuit.
