Generator step-up and system intertie power transformers
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Power transformers Generator step-up and system intertie power transformers Securing high-quality AC transmission

Generator step-up transformers Built to withstand continuous full load Generator step-up transformers (GSU) are the critical link between the power station and the transmission network, often operated day and night at full load. They must be built to withstand extreme thermal loading without ageing prematurely. Our track record of 1,400+ units delivered since 1995 is proof of the superior quality of ABB’s GSU transformers. Long-term resistance to ageing A GSU transformer is loaded at 100 percent rating 24/7, throughout the year. It must be built to withstand the thermal load of high...

System intertie transformers Sustaining electrical and mechanical stress over their lifetime System intertie transformers are key elements in power networks, connecting AC networks of different voltage to each other. These power transformers must be built to withstand severe electrical stress from fault currents and transients. While seldom fully loaded, ABB system intertie transformers must stand ready at all times to handle any emergency case that may occur during their lifetime. Specified for maximum load for emergency purposes Since system intertie transformers are rarely loaded near...

Customer-specific transformers built on a controlled design process Power transformers are highly complex, engineered products. Over their lifetime of up to 40 years, they are subjected to enormous electrical, magnetic and mechanical loads. This calls for design excellence and a controlled structured design and manufacturing process. Structured design and manufacturing process To ensure efficient and reliable long-term operation, ABB has implemented common design rules on a global basis. Its TrafoStar design and manufacturing platform is a structured methodology applicable in all phases of...

Tank loss and temperature verification. Core loss and winding temperature verification. Production quality control system – inspection by certified engineers and supervisors Incoming Inspection Supplier Control System Control Cabinet Cooler, radiator, fan, accessory Conductor IC2 Winding Insulation Winding Assembly Core Clamps Tank Fabrication & painting Cover Assembly Final Assembly Vapor Phase Drying Active Part Assembly Core Cutting Core Stacking Inspection Card Final Review Pipe, box, cable, conservator Oil Filling Receiving Inspection & Assembly Checklists, control points, design...

A complete range of GSU and system intertie transformers Since 1995, ABB has delivered more than 14,500 power transformers for some of the world’s largest projects. These include over 500 units in the 735–765 kV range to all major geographical markets. ABB is renowned for its high quality in high-voltage applica ions. t Generator step-up transformers System intertie transformers Unit ratings Unit ratings System voltages System voltages 6 Generator step-up and system intertie power transforme

Full support from transport to training ABB services ensure that your power transformers are oper ating at optimal performance throughout their lifetime. Our services range from transportation and basic maintenance to advanced diagnostic assessments and onsite repairs. Service Each ABB power transformer comes with a technical guarantee and full backup, including field support and global aftersales services delivered by local branch offices, agencies and representatives throughout the world. Diagnostic assessment, onsite repairs, upgrades and spare parts deliveries are available to customers...

ABB Ltd. Affolternstrasse, 44 P.O. Box 8131 8050 Zurich, Switzerland www.abb.com/transformers Note We reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. ABB does not accept any responsibility whatsoever for potential errors or possible lack of information in this document. We reserve all rights in this document and in the subject matter and illustrations contained therein. Any reproduction, disclosure to third parties or utilization of its content – in whole or in...