Nuclear Motor Repair and Service

IPS offers standardized, integrated services for nuclear power plant maintenance and reliability. Our maintenance and repairs for nuclear safety- and non-safety related motors and generators (e.g. circulating water pump and reactor coolant pump) comply with all federal regulations and professional standards, including 10 CFR50 Appendix B and ANSI N45.2.

We give you the power of predictability. Do business with one IPS regional service center and you’ve done business with all of them. One service standard for safety, quality, repairs and commercial terms coast to coast helps customers with multiple plants standardize their maintenance and reliability processes.

Two IPS regional service centers, IPS Monarch and IPS Shreveport, spearhead the company’s engineering, repair and field services for nuclear power plants. IPS nuclear motor repair services are available through all IPS regional service centers coast to coast.

We have the nuclear repair service experience you need, working in an organizational and cultural framework committed to safety and quality.

Programmatic focus on QA and an emphasis on safety

IPS Shreveport dedicated clean winding room with 12' VPI

IPS is engineered to combine the highest possible QA and lowest possible cost with lead times the competition can’t match — all as part of the regular order of business. Our Senior Vice-President of Quality & Engineering works with Quality Managers at IPS Monarch and IPS Shreveport on program architecture, to document our quality and then engineer improvements.

We’ve published the IPS Nuclear Quality Assurance Manual to ensure that the nuclear services performed at IPS Monarch and IPS Shreveport meet or exceed all customer specifications. Our quality assurance uses the NUPIC checklist with all eighteen separate sections of the 10CFR50 Appendix B program, documenting policies, procedures, and instructions governing all IPS activities affecting quality.

Our corporate Director of Continuous Improvement works with IPS Lean Coordinators at all sixteen IPS regional service centers, re-engineering our processes to drive standardization and interoperability. Regular audits conducted internally and by customers indicate that IPS offers industry-leading quality, safety and lead times. We welcome compliance audits by independent third parties concerning overall performance, recordable injuries and their severity (our Experience Modification Ratio is well below the industry average of 1.0).

Our programmatic focus on QA and emphasis on safety make us well-suited to support nationwide nuclear safety programs. We offer complete nuclear in-shop repair services and field services for safety and non-safety related nuclear motors and mechanical equipment, including pumps, compressors and gearboxes.

Decontamination and hot shop services

Technicians work on contaminated nuclear reactor coolant
pump motor (8,000 HP, 13.2 kV)

IPS partners with selected U.S. companies to decontaminate nuclear motors to free-release condition for repair and rewind. When contaminated nuclear motors can’t be free released, IPS service technicians repair and/or rewind the apparatus in its contaminated state at our partnering facility.

Comprehensive testing

Underwater AC hi-pot conducted on CWP motor (3,500 HP -
13.8 kV - 327 RPM) at 13.8 kV per IEEE 429 specifications

IPS uses the industry’s most advanced array of diagnostics, to validate recommendations, document "as received" and "as shipped" performance, and support one service standard coast to coast.

• AC test panel to 7.5 MVA / 15 kV
• DC test panel to 1,750 A / 1,000 VDC
• No-load testing to 37,500 HP
• Dynamometer load testing to 4,500 HP
• 500 kVA core loss testing up to 30,000 HP
• IEEE 429 water immersion up to 13.8 kV
• IEEE 1043 voltage endurance
• Partial discharge
• Doble®
• Corona Probe

Premium rewinds for CWP motors and RCP motors

CWP motor (3,500 HP - 13.8 kV - 327 RPM)
rewound with MegaSeal™

IPS engineered insulation systems have proven their reliability and performance for the most demanding continuous process applications. Our rewind technologies are available with motor redesign or uprates, and mechanical modifications to enclosures, shafts, seals, fans and bearings:

• MegaSeal™ VPI engineered insulation systems from 6.6–15 kV
• EnduraSeal® VPI engineered insulation systems up to 6.6 kV
• IntegraSeal™ B-stage coils up to 15 kV

Commercial-grade dedication

Circulating water pump motor prior to winding
(6,000 HP, 13.2 kV, 93,000 lbs.)

We maintain a robust commercial-grade dedication program, procuring all safety-related perishable items from audited 10CFR50 Appendix B suppliers. Our supplier audits include inspection and testing of all parts (including coils from IPS PennCoil, which inspects and tests its coils before shipping), use commercial-grade survey verification, source surveillance verification and supplier source evaluations.

Emergency response and outage support

CWP induction motor (2,500 HP / 6.6 kV / 257 RPM)

The IPS hub-and-spoke system of regional service centers means fast mobilizations to solve problems and minimize downtime. If you’re coping with an unplanned outage, we’ll have emergency repair specialists on-site in a hurry. They have years of repair experience in turning emergencies into just another day on the job, and they show up with the tools to have you back online with minimal disruption:

• Rideout teams with portable 2MW generators
• Complete test equipment
• Critical spares storage — testing, installation and alignment
• Motor, pump and gearbox management and storage

Predictive and preventive maintenance

RCP (6,000 HP - 4,160 V - 1,200 RPM) induction motor
rewound with EnduraSeal prior to IEEE 429 water immersion testing

Whether we’re performing scheduled maintenance, working within a planned outage window or responding to an emergency call, we bring more to the job — more engineering, more experienced winders, more veteran repair technicians, more technologies — all backed by IPS coast-to-coast resources such as in-house coil manufacturing and CNC parts.

We offer a range of services that older plants find useful. These include predictive and preventive maintenance, plus a complete portfolio of performance improvement services — best practices for maintaining electric motors and mechanical components, optimizing inventory and training in-house maintenance personnel.

For more information on IPS single-source capabilities for nuclear plant maintenance and reliability,
talk to your regional IPS sales representative or email us.