450kw HV Rewind & Overhaul

Rapid Response to Critical Failure

A high-valued customer reached out to Isenring Electrics regarding a critical high-voltage motor that had short-circuited and failed during operation. This motor is essential to the plant's daily functions, making it imperative to restore it as swiftly as possible.

Economical and Efficient Solution

Although a new replacement motor was a more economical option, the lead time for a new unit was approximately 30+ weeks. Isenring Electrics managed to have the asset back in operation within just 12 weeks.

The comprehensive scope of work included:

Initial Strip & Assessment
Quote to Repair/Replace Asset
Detailed Report & Root Cause Analysis
Reclaiming Drive End & Non-Drive End Bearing Housings & Laser Cladding Bearing Journals
Fabrication of New Terminal Box & Fan Cowling
Burn-Out of Original Motor Windings
Core Loss Testing of Stator Laminations
Motor Rewind with High-Quality Coils
VPI (Vacuum Pressure Impregnation) of Stator & Motor Windings
Installation of New Heaters, RTD’s, Thermistors
Dynamic Balancing of Rotor & Fan
Motor Reassembly with New Bearings, Seals, Gaskets
Test Run & Vibration Analysis Reporting
Custom Paint to Customer Specifications
Provision of Motor on Rated/Engineered Transport Frame
Completion & Overhauled Report

Team Effort and Customer Satisfaction

Multiple shifts were organised to ensure the asset's rapid turnaround. The customer implemented a workaround during the repair period and was extremely pleased with the speed and efficiency of the project.