Service: What to do first!
Because history has shown that several simple solutions which do not require return of a unit
may arise, please perform the following checks.
Open condition display
Note the figures below. Is the surge waveform like this?
Figure 152.
Open condition.
If yes, the unit may have at least one broken test lead causing an open condition. In most
cases, the test lead that is under test and gives this pattern is the broken lead.
Verify this by pulling on the book/clip assembly of the lead. A broken test lead will stretch. If it
does not, repeat this procedure at one foot intervals for the length of the lead. If the leads of
the tester are good, check the connections and continuity of the test winding.
Hipot display checks
1) The hipot display shows only the voltage or current bar. One of three problems
might exist.
1.1 The item being tested is in fact faulty and has either low insulation resistance or
open connections.
1.2 The Baker AWA-IV has an internal problem.
1.3 The tester has a test lead problem as shown above for an open condition.
Disconnect the test leads from the motor and isolate the tester from any grounded surface.
Reduce the output to minimum and attempt a HiPot test with an open lead condition. Your
display should indicate a rising voltage bar. The current bar may rise slightly but fall back to
zero when the output increase is stopped.
NOTE
It is not necessary to run the output control at a high level to determine if the Baker
AWAIV is working properly.
184
SKF Static Motor Analyzer—Baker AWA-IV User Manual
Summary of Contents for AWAIV-12
Page 1: ...SKF Static Motor Analyzer Baker AWA IV User manual ...
Page 2: ......
Page 14: ...xii SKF Static Motor Analyzer Baker AWA IV User Manual Table of Contents ...
Page 16: ...2 SKF Static Motor Analyzer Baker AWA IV User Manual About this manual ...
Page 28: ...14 SKF Static Motor Analyzer Baker AWA IV User Manual Baker AWA IV Instrument Overview ...
Page 88: ...74 SKF Static Motor Analyzer Baker AWA IV User Manual Database management and maintenance ...
Page 90: ...76 SKF Static Motor Analyzer Baker AWA IV User Manual Set up of the Baker AWA IV analyzer ...
Page 91: ...SKF Static Motor Analyzer Baker AWA IV User Manual 77 Set up of the Baker AWA IV analyzer ...
Page 92: ...78 SKF Static Motor Analyzer Baker AWA IV User Manual Set up of the Baker AWA IV analyzer ...
Page 124: ...110 SKF Static Motor Analyzer Baker AWA IV User Manual Special features of the Baker AWA IV ...
Page 166: ...152 SKF Static Motor Analyzer Baker AWA IV User Manual Typical winding faults ...
Page 180: ...166 SKF Static Motor Analyzer Baker AWA IV User Manual ...
Page 181: ...SKF Static Motor Analyzer Baker AWA IV User Manual 167 ...
Page 182: ...168 SKF Static Motor Analyzer Baker AWA IV User Manual ...
Page 210: ...196 SKF Static Motor Analyzer Baker AWA IV User Manual ...
Page 234: ...220 SKF Static Motor Analyzer Baker AWA IV User Manual ...
Page 240: ...226 SKF Static Motor Analyzer Baker AWA IV User Manual Glossary ...
Page 248: ...234 SKF Static Motor Analyzer Baker AWA IV User Manual Index ...
Page 249: ......