What makes a motor "suitable for variable speed control"
What makes a motor "suitable for variable speed control"
(OP)
Motor information is
GE 1000HP 4000V
MDL. 8313783302
Code G
Type K
Insulation F
No. 830897
How can I determine if this motor is "suitable for variable speed control"
GE 1000HP 4000V
MDL. 8313783302
Code G
Type K
Insulation F
No. 830897
How can I determine if this motor is "suitable for variable speed control"





RE: What makes a motor "suitable for variable speed control"
That said, some MV VFDs are designed with this issue in mind and are touted as being suitable for use on virtually any AC motor. The reason is, once you get in to something that expensive, mitigating the potential problems the VFD might pose to an existing motor becomes an insignificant added cost, so it becomes part of the selection and design criteria.
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RE: What makes a motor "suitable for variable speed control"
RE: What makes a motor "suitable for variable speed control"
Bearing lube at low speed
Critical speeds
Max speed
Insulation srength due to Harmonics
Fan cooling at low speed
JIM
RE: What makes a motor "suitable for variable speed control"
Review NEMA Guide MG1 Section 12: "Application Considerations for General Purpose Design A and B Induction Motors used with Adjustable-Voltage or Adjustable-Frequency Controls or both."
David Baird
Sr Controls Designer
EET degree.
Journeyman Electrician.