Voltech AT5600 User Manual page 346

C H A P T E R 1 4 - A T
To program the test:
1. Enter the value of voltage for the signal and the required frequency of the
test. (If in doubt, refer to Chapter 7 - 'Test Conditions', which lists
recommended test conditions.)
2. 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. See 7.3 Explanation of Integration.
3. Enter the terminal names of the winding to be energized. Enter the
terminal names of the primary and secondary windings on which the
PHAS test is to be performed. Note: either of these windings can be the
energized winding.
4. Set the phase limits:
For phase tests, the convention of the result returned by the AT depends on
the minimum limit requested. If this limit is >0 the result returned is between
0 0 and 360
0
180 and 180
done to ensure continuity of results and ease of setting limits irrespective of
where the diagram is being checked.
Note: The Measure button may be used here as outlined in section 14.5.9.
5. Select 'OK'. The test specification will then be displayed in the program
window.
AT5600 User Manual 98-119 issue 14
E D I T O R
0 . If the minimum limit is >-180
0
, otherwise the result returned is between –360
0 , the result returned is between –
0 0
and 0 . This is
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