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Operator must follow instruction manual and attend to the equipment while in use. In the event of equipment malfunction, the unit should immediately be de-energized and returned to Megger for repair. The safety precautions herein are not intended to replace your company’s safety procedures.
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Page 2 Turn Instrument On, select MWA from instrument list on Fill out Nameplate information (minimum info listed below) PowerDB which brings up “Select a Form” box. Select 3Ø Turns Ratio & Winding Resistance form. Input Desired Test Settings This guide uses this form as an example. Allow 30-60 seconds for PC to communicate with Instrument.
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Page 3 Select and start the Ratio (TTR) Test by depressing # below. Winding Resistance Test –depress # to test all 3Ø’s for tap or Testing will follow Nameplate input from 4) above: depress highlighted box to begin testing individual phase: Test dialog appears once test begins: For automated winding resistance testing, MTO Test Wizard can be used if all critical nameplate information is filled in from step...
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Page 4 Once test begins to run for any resistance, following Controls are as follows: screen will appear: Test Setup: allows changes to test parameters, which can be seen in step 4 above (and described in section below). This button is ‘greyed out’ once testing begins or MTO instrument connection is not established.
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