Baker D30R, User'S Manual & Operating Instructions

Page: 38 / 142

D30R Users Manual
38
Do Not Touch Test Leads while test is in Progress!
71-023 Rev C 5/8/2007
2. Use the UP and DOWN keys to select the appropriate Record to store
the test in.
3. Press SELECT. The tester then displays a clear test screen.
4. To Recall the Record, Select RECALL.
5. The Record screen will reappear. Using the UP and DOWN keys,
select the appropriate record.
6. Press Select.
Indications of problems in a motor
If the resistance readings are significantly different from the motor nameplate
data or a single lead is more than a few percent different from the others, there is
probably a short in one or more of the motor’s windings. If one of the values is
significantly higher, there could be problems, such as:
1.
A loose or corroded wire nut connection.
2.
An incorrect amount of turns or an incorrect sized wire gauge used during a
re-wind job.
3.
An incorrect gauge of cable/feeder used from motor control to motor
terminals.
4.
Poor or incorrect solder technique used to connect phases.
5.
Phases/coil groups connected wrong.