Voltech AT5600, Руководство пользователя

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C H A P T E R 1 4 - A T E D I T O R
AT5600 User Manual 98-119 issue 14
Page 307
14.5.12.
Hints and Tips
The following is a list of points that should be remembered when you are creating
your test programs.
14 .5 .1 2.1 Sc hem a tic
Create your schematic first.
When you are creating your test programs, you should work in the following
order:
a. Initially, create the schematic.
b. Then, set up the program options.
c. Finally, create the list of tests that make up the program.
Note: If you make any changes to the schematic after you have created the
list of tests, then some tests may be inadvertently deleted. Examples where
this may happen are: deleting a winding or a terminal or renaming a terminal.
14 .5 .1 2.2 Te s t Orde r
Use the recommended order for the tests in the program
.
The actual tests used in the program are of course dependent on the type of
transformer to be tested, and the number of parameters you have chosen to
test.
However, it is recommended that you generally do the tests in the following
order:
a. Continuity.
To detect a transformer not correctly plugged into the test fixture, and
any open circuit windings.
b. Primary inductance or magnetizing current
To detect faulty core material, and the wrong number of primary
turns.
c. Turns ratios or open circuit voltages
To detect any windings with the wrong number of turns.
d. Isolation tests such as Insulation Resistance
To detect poor interwinding isolation where safety is not an issue, for
example between two secondary windings.
e. Safety tests such as Hi-Pot
To detect poor interwinding isolation; but this time where safety is an
issue, for example, from a primary winding to a secondary winding on a
mains isolation transformer.