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Biomass Power Station

A North East Power Station, which was carrying out a conversion to Biomass Fuel, needed to overhaul 100 assets ranging from low to high voltage. Houghton International was awarded a 36-month contract for overhaul, maintenance, and rewind of motors, generators and other electrical rotating equipment. The wide range of motors covered by the contract, including compressor and pumping system motors, were all linked to major functions in the power station and classed as either business or safety critical, therefore, quality control and traceability were of the highest priority.


During the 3-year period, approximately 4-7 motors per month were overhauled. Most of these required standard overhauls and refurbishments, which included carrying out electrical and mechanical checks and tests, cleaning and changing bearings and balancing rotating parts. Where motors required a full rewind, Houghton International was able to complete this in-house, utilising our dedicated winding facility and in-house coil shop. Manufacturing coils in-house provides absolute control over quality and lead times, therefore, coils could be supplied quickly, tested comprehensively and checked for fit.


A designated team was allocated for contract management, ensuring regular, consistent communication. Houghton International’s multi service approach means a fast and efficient service can be provided for all electrical equipment, providing the customer with one central point of contact and a more efficient service. Additional spare sets of coils were provided for machines being rewound. These coils were stored to reduce cost and lead time for future rewinds. As well as producing exemplary test results, Houghton International’s HiFlex Coils are fully cured, giving them a guaranteed storage life.


Approximately 120 machines were received into Houghton International’s works from the North East Power Station. Throughout the contract, the engineering team at Houghton International identified opportunities to improve performance. Exceeding the original contract requirements, the site services team carried out in-situ inspection, testing and fault diagnostics. All work was completed to schedule within the requested delivery dates, with work completed on an Emergency basis, as and when required. Houghton International continue to deliver ongoing maintenance and planned shutdown work for the power station.

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