- Ref. #:
- July, 2020
- 700 HP \ 2300 VAC \ 1785 RPM
Our customer asked for their motor to be reconditioned before redeployment, as a precautionary measurement and as part of their SOP.
Testing and Assessment
The rotor was SRMFA tested as part of standard diagnostic procedure and was found to have a single cracked bar, at the welded endring interface. The resultant SRMFA color map definitively reveals the defective bar in the #9 slot. This rotor defect could have easily been overlooked, only to show up as part of vibration analysis during proof-of-run testing, wasting valuable time. The Brandon & Clark team did a superb job of following procedure and catching this defect early in the reconditioning process.