Insulation Resistance Test And Withstand Voltage Test; Insulation Resistance Test Procedure; Withstand Voltage Test Procedure - GE FVP110 Maintenance Manual

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Insulation Resistance Test and Withstand Voltage Test

Follow the steps below to perform the test, the wiring of the communication line must be
removed before initiating testing.

Insulation Resistance Test Procedure

1. Lay transition wiring between the + terminal and the - terminal.
2. Connect the insulation resistance meter (with the power turned OFF) between the
transition wiring of Step 1 and the ground terminal. The polarity of the input terminals
must be positive and that of the ground must be negative.
3. Turn the power of the insulation resistance meter ON and measure the insulation
resistance. The duration of the applied voltage must be the period during which 100
MΩ or more is confirmed (or 20 MΩ if the unit is equipped with a built-in arrester).
4. Remove the insulation resistance meter, connect a 100 kΩ resistor between the
transition wiring, and allow the electricity to discharge. Do not touch the terminal with
your bare hands while the electricity discharges (one second).

Withstand Voltage Test Procedure

Testing between the input terminals and the grounding terminal:
1. Lay the transition wiring between the + terminal and the - terminal, and connect the
withstand voltage tester (with the power turned OFF) between the transition wiring
and the grounding terminal. Connect the grounding side of the withstand voltage
tester to the grounding terminal.
2. After setting the current limit value of the withstand voltage tester to 10 mA, turn the
power ON, and gradually increase the voltage from 0 V to the specified value.
3. Maintain the voltage at the specified value for one minute.
4. On test completion, carefully reduce voltage to avoid voltage surge.
Overvoltage of the test voltage is so small that it does not
CAUTION
cause an dielectric breakdown but can deteriorate insulation
and lower the safety performance; to prevent this, keep the
amount of testing to a minimum.
The voltage for the insulation resistance test must be 500V
DC or lower, and the voltage for the withstand voltage test
must be 500V AC or lower. Failure to heed these guidelines
may cause faulty operation.
Where a built-in arrester is provided (suffix code: /A), the
voltage for the insulation resistance test must be 100V DC or
lower, and the voltage for the withstand voltage test must be
100V AC or lower. Failure to heed these guidelines may
cause faulty operation.
FVP 110 Fieldbus Valve Positioner Manual
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