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FEATURE MAINTENANCE


TESTING TECHNOLOGY HELPS QUARTZELEC KEEP CUSTOMER MOTORS RUNNING


Specialist electrical testing equipment from SKF is helping a leading engineering services company offer new value to its customers


W


ith heritage that stretches back more than 120 years, Quartzelec is


a major provider of electrical engineering services for offshore oil, gas and marine industry customers around the world. The company’s base in Aberdeen undertakes a broad range of services, including inspection, overhaul and rewind activities for a wide variety of high and low voltage electrical machines. Quartzelec had continually evolved and


upgraded its capabilities to meet the changing needs of its customers, and one of the most significant changes in recent years has been the introduction of advanced condition monitoring capabilities designed to improve the reliability and productivity of assets by predicting and preventing failures before they occur.


CONDITION MONITORING “Until around three years ago, maximising output was the key concern across the oil and gas industry,” says Paul Oliver, general manager of the company’s Aberdeen unit. “But since the downturn in oil price, the industry has started to look far more closely at reliability. Operators now understand the value of condition motoring to help them conduct their maintenance activities in a


22 APRIL 2018 | FACTORY EQUIPMENT


more predictable, planned manner.” For Quartzelec, that change in focus by


its customers presented a big opportunity. “Increasingly, we want to be seen not just as a company that can repair equipment when it breaks, but as a partner that can help ensure assets continue to operate reliably,” says Oliver. Over the past two years, the company has developed a portfolio of condition monitoring services for electrical machines, including temperature and vibration monitoring, online electrical monitoring and partial discharge testing.


BAKER AWA One equipment tool in the company’s armoury of test equipment is the SKF Static Motor Analyzer Baker AWA. The compact, automated machine is used to conduct a battery of tests on electrical machines to evaluate the condition of their winding’s insulation and electrical connections, identifying weaknesses or developing problems that might lead to failure in service. Quartzelec’s engineers already have


plenty of experience with the Baker AWA Analyzer, as it is used as a standard part of the company’s motor overaul procedures, to evaluate the condition of machines that come into its workshops


for maintenance, and to check that repairs have been completed successfully prior to dispatch. “The AWA Analyzer is a very user friendly device, with a simple structures menu that guides our engineers through the required series of tests,” says Oliver. These days, however, the company’s Baker AWA Analyzer spends around 40 per cent of its time away from the workshop, conducting on-site tests on offshore platforms, oil industry support vessels and other customer assets. “Typically, our engineers will conduct tests on every machine on a customer vessel on an annual basis. Those tests allow us to identify problems immediately, and by comparing the results from different tests on the same machine over time, we can spot trends that might indicate the need for planned maintenance the next time the asset is scheduled for overhaul.”


WORLDWIDE


The global nature of its customers’ businesses means Quartzelec may be called to conduct tests almost anywhere in the world. An oil service vessel may carry more than a dozen critical electrical machines, and the company’s test regime regularly identifies issues for customers. “Recently we had a machine fail a test while the vessel was in dry dock. Our engineers were able to pull it out of the vessel and after steam cleaning and varnishing some of the coils, they ran the tests again and could show that it was ready to go back into service with no further work required. “The compact, portable design of the Baker AWA Analyzer is a further important benefit to engineers working off-site. When we go to an offshore platform, for example, we can’t always be sure what equipment will be operating until we get there. Our engineers can be prepared for on-line tests on running equipment, but having the Baker AWA Analyzer available means they can also conduct off-line tests if the equipment is not in use at the time.”


SKF


www.skf.com T: 01582 490049





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