Complete in-shop electric motor & generator repair

IPS offers complete in-shop service, repair, rewinds, and remanufacturing for industrial AC & DC electric motors and generators. We handle assets weighing 145 tons and rated to 15 kV, small, fractional HP low-voltage units, and everything between:

  • AC induction motors — squirrel cage & wound rotor
  • AC synchronous motors — brushless & slip ring
  • AC generators — hydro, wind turbine, and steam turbine
  • DC motors — permanent magnet, series, shunt, and compound
  • Specialty motors — vertical, hermetic, nuclear, explosion-proof, and servo
  • Low-voltage up to 15,000 VAC/1,000 VDC
  • HP ratings from fractional to 80,000+

For more information or to request a quote, talk to your local IPS representative or contact us here.

Large & extra-large AC & DC motor service and repair

The IPS North American network has multiple high-voltage service centers specializing in large and extra-large industrial AC & DC motors. We have over 1.6 million square feet of repair space, with 145-ton lift capacity, and VPI tanks coast to coast. We also have the industry’s largest VPI tanks, measuring 14 feet.

We test, repair, rewind, remanufacture, and reverse engineer large and extra-large electric motors and generators. Our comprehensive testing includes non-destructive testing, such as infrared thermography, and comprehensive electrical testing.

These include:

  • No-load testing up to 37,500 HP
  • Load testing up to 4,500 HP
  • Run testing to 15,000 VAC & 1,000 VDC
  • Core loss testing — 500 kVA up to 30,000 HP
  • Insulation resistance
  • Partial discharge

IPS technicians recalibrate test equipment after every use, to maintain diagnostic accuracy.

IPS in-shop repair also covers scheduled inspection and maintenance:

  • Disassembly and cleaning
  • Reinsulating
  • Bearing replacement
  • Commutator turns
  • Undercut on all motor sizes

Mechanical testing for electric motors & generators

IPS tests in-shop for modal analysis, concentricity, hardness, vibration analysis, and balancing. We also provide dynamic balancing up to 80,000 lbs.

Premium VPI and B-stage hard coil rewinds

IPS offers proven solutions to mitigate electrical, thermal, mechanical, and environmental stress on stator windings. Our global VPI and B-stage hard coil rewinds come with industry-leading warranties.

Custom motors and uprating

We engineer for the application. IPS manufactures custom motors and can uprate legacy motors for more power or efficiency.

Our modification capabilities include:

  • Frequency conversion
  • Speed change rewinding
  • Conversion to inverter-duty
  • Voltage changes

For more information on IPS engineering and manufacturing, talk to your local IPS representative or contact us here.

Large power generator service and repair

We specialize in large power generators for wind, hydro, steam, diesel, natural gas, and biogas turbines.

IPS technicians know high-speed two-pole generators and multi-pole slow-speed generators.

Our in-shop generator repair specialists provide:

  • Stator repair and rewinds (partial and complete)
  • Partial bar replacement
  • Core restacking
  • Stator re-wedging
  • End turn repairs
  • Bar abrasion repairs

IPS works on exciter repair and overhaul for consistent voltage generation. We also handle high-voltage bushing change-outs, partial discharge capacitor installation, and air/hydrogen-cooled flux probe installation.

For more information on IPS generator service and repair, talk to your local IPS representative or contact us here.

Dedicated small motor repair

IPS runs dedicated small motor repair shops at service centers coast to coast. Our small motor repair specialists focus on low-voltage units up to 690 VAC:

  • NEMA motors
  • IEC motors
  • Arbor motors
  • Gear motors
  • Servo motors
  • Spindle motors
  • Low-voltage DC motors
  • Small, definite-purpose, non-stock motors

These small motor repairs cost less than the purchase of a new motor and include an IPS warranty.

To lower your motor and generator repair costs, talk to your local IPS representative or contact us here.

IPS has close working relationships with OEMs