CIRCUTOR OT2-60D - Manual (Page 7)

DIELECTRIC STRENGTH TESTER FOR ISOLATING OILS OT2-60D --------- Page 7
4.1. Input power
The INPUT POWER connector accepts most standard electrical equipment type
cords. The power supplied to the input connector must be from a grounded
source rated to match the input power specifications noted in Table 1.
4.2. Main power
The MAIN POWER switch provides the power to the control and power circuits.
The neon lamp will light when the power is on and voltage is available through
the input line cord. The INPUT FUSE located electrically before the MAIN
POWER switch provides line fault protection for the unit.
4.3. START
The START pushbutton activates the high voltage power circuits. The GREEN
LED indicator lamp provides long life indication of the circuit status. The LED
lights when high voltage is energized and the unit is ramping up in voltage.
4.4. Rate of rise
The RATE OF RISE output control sets the output voltage rise in three fixed
rates, 500v/2000v/3000v per second. The STOP positions between the rise
voltages allow for manual override and calibration check of the output.
4.5. KILOVOLTMETER
The digital Kilovoltmeter indicates the output voltage between the high voltage
bushings in the test chamber. The calibration accuracy is 3% of full scale. At
failure of the test sample, the meter will hold the breakdown voltage reading until
the Fault/Reset pushbutton is depressed.
4.6. Fault/reset
The FAULT/RESET pushbutton resets the hold circuits after a breakdown of the
test sample. This control can also be used to de-energize the high voltage power
circuit. The RED LED indicator lamp provides long life indication of FAULT
status. The LED lights when the output has de-activated from an arc in the test
sample. When reset, the output control must ramp back to zero before the high
voltage can be energized again.
4.7. Access interlock(not on control panel)
The Access Interlock. is provided for safety. It interlocks the access lid to the
high voltage bushings and precludes the potential for shock by requiring the
access door to be closed when high voltage is energized.
4.8. ic/iec oil vessel
This Oil Vessel is used with the OT2-60D at 2000v/SEC for testing in accord with
IEC Standard IEC-156.