AWA Troubleshooting
If you can
Not
say the problem is associated with any
One
type of motor/generator, or
other coil type, then Service would be involved. See
Service: What to do First!
Applications: What to do First
!
Review the section below on Common Application Problems. Please have Basic
Information about your tester and specific information about the motor you are testing
available when calling or faxing to assist Baker Instrument Company personnel in
determining a solution to your problem.
Examples:
Hp rating
kW rating
RPM rating
Operating voltage & current
How the item being tested is wound and/or number
and type of coils
Application of motor/generator
In short, any and all information you know or can derive from the motor
nameplate would be of help. A great tool is a printout or sketch of the waveforms
displayed on the tester. If you have a FAX available, send a draft to 970-282-
1010, attn: Applications.
Common Application Problems
There are a few common application-related problems which many users encounter.
Please review the following cases.
•
The surge tester will not give the desired output test voltage for the apparatus
being tested.
This may happen when the test motor is too large for the instrument being used, or if the
impedance of the windings is too low. Refer to
Surge Testing in the users manual
for
specific test procedures and results. There may also be a problem with the tester in this
case. DO NOT continue testing until you have contacted Baker Instrument Company
Applications Department.
•
Separation of compared wave patterns is seen when surge testing on coils that
are assumed to be good, even on brand new motors or windings. Often
separation is seen in all three possible comparisons but to varying degrees.
There may not be separation throughout the whole wave pattern.
