VOLTECH AT3600 USER MANUAL PROGRAMMING TESTS
TEST PROGRAM EDITOR VPN 98 - 024 PAGE 3.4.57.
4.35. VOCX – O/C VOLTAGE (EXTERNAL SOURCE)
The Open Circuit Voltage across a winding may be tested. An AC voltage (from an
external source) is applied across the primary winding and the resulting voltage
across the chosen secondary winding is measured.
This test uses an external source to provide the test signal which must be coupled to
the tester via a Voltech AC Source Interface (contact your supplier for details). See
the AC Source Interface user manual or the Editor help system for details of how to
configure external ac sources for use with an AT3600.
On selecting "VOCX Open Circuit Voltage (External Source)" from the available
tests window, a form fill-in dialog box will be displayed:
To program the test :
1. Enter the test voltage and frequency at which the test is to be carried out.
Note that the Measure button
cannot be used to determine any of the required test
parameters.
2. Select either AC Voltage, DC Voltage or Mean sense, RMS scaled measurement
by clicking on the relevant button.
3. Select the integration time required.
'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.
4. Enter the terminal names for the Energized High and Low Terminals.
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