AVTMMTO3XX Rev 3 Sept 2013
13
4
Operating the MTO300/330
When testing high-voltage transformers, caution must be used at all times and all
safety precautions followed. Read, understand, and employ all safety precautions
and circuit connections described in Section 2 Safety and Section 3 Preparing for
Test.
F
WARNING
Ensure that the transformer to be tested is completely
de-energized. Check every winding. Ensure that all
terminals of the transformer are disconnected from line
or load at the transformer. Connections to ground may
be left in place.
F
WARNING
For all testing as described herein, care shall be taken
to ensure any and all unused clamps shall be isolated
from each other, from ground, and from personnel.
F
EMERGENCY SHUTDOWN PROCEDURE
Press red EMERGENCY TEST OFF push button
or switch power off.
Description of Test Sequence
Once all the precautions and steps of Sections 2 Safety and 3 Prepare for Test are
complete, and the connections to the Transformer Under Test (TUT) have been
made, then the input switch may be switched to the ON position.
0 , OFF position
1 (-) , ON position
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