VOLTECH AT3600 USER MANUAL PROGRAMMING TESTS
TEST PROGRAM EDITOR VPN 98 - 024 PAGE 3.4.41.
4.24. IR - INSULATION RESISTANCE
The insulation resistance may be measured between any number of windings. A dc
voltage is applied across two groups of windings, with the windings in each group
being shorted together. The voltage and current are measured; dividing the voltage
by the current gives the insulation resistance.
On selecting ‘IR - Insulation Resistance’ from the available tests window, a form fill-
in dialogue box will be displayed:
To program the test :
1. Enter the test voltage.
Note that the Measure button cannot be used to determine the required Test
Voltage.
2. Select (mouse click the button) the integration time you require.
'Medium' is the default setting. 'Long' will give more stable readings (for tighter
limits) at the expense of an increased test time, and 'Short' will test at the
maximum speed, but may give a slightly noisier reading.
3. Enter the terminal names for the High and Low Terminals.
Click with the mouse to select a terminal from the Available list; then click the
‘Add >‘ button to transfer it to the Used list.
(To correct a mistake, click with the mouse to select a terminal from the Used
list; then click the ‘< Remove’ button to transfer it back to the Available list.)
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