Voltech AT5600 User Manual page 324

C H A P T E R 1 4 - A T
These terminals will be shorted out during the test. As the short-circuit
applied via the relay matrix in the tester cannot be perfect, additional
measurements will be made to these terminals to compensate.
5. Select the additional low terminals.
These terminals are also shorted out during the test, but they are not used in the
compensation measurements.
If only one secondary winding is to be shorted, then there will be no additional low
terminals. If several windings are to be shorted, then the Secondary Terminals
should be on the winding with the largest number of turns, and Additional Low
terminals should be used for the rest.
6. Select (mouse click the button) the type of limits you require and enter the
values.
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Note: The Measure button may be used here as outlined in section 14.5.9.
7. If required, enter the load compensation value as outlined in section 13.5.
8. Select whether a user offset is required and enter its value if applicable. This
value will be added to the measured value to give the returned result.
Normally a user offset would not be required. However, for small values of
leakage inductance (<1H) when there are a number of additional low terminals, it
is not always possible during compensation for the tester to remove all of the
parasitic errors of the test fixture. In this case, the user offset may be required to
fully remove the errors.
9. 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
Enter a nominal value and then the limits as negative and
positive percentage values.
Enter minimum and maximum values.
Enter just a minimum value.
Enter just a maximum value.
Page 324