IRG can supply generator components for each of the units of each of the major generator manufacturer's in the world.  Of course, our experience has primarily been based on the GE, Westinghouse, and Electric Machinery designs traditionally dominating the North American marketplace.   

As the world becomes increasingly competitive on an international scale, the presence of Siemens, ABB, Brush, Hitachi, and others in the North and South American market has given us considerable experience with these designs as well.  Due to the fact that many international manufacturers are licensees of GE or Westinghouse designs, the component requirements can be very similar.  Our experience includes the following generator designs:

• General Electric
• Westinghouse (now Siemens Westinghouse)
• Electric Machinery
• Asea Brown Boveri
• Alstom
• Siemens (now Siemens Westinghouse)
• Hitachi
• Mitsubishi
• Hangjung

Generator Spare Parts Quotation Procedure

Typically, IRG is informed by our customer of an upcoming outage in which the power company plans on doing some maintenance work on the generator.  In most cases, a prior inspection has provided some idea of the scope of work required during the outage.  However, many times, the full extent of the maintenance work required is not known until the generator is opened for a complete review.

At this initial inspection stage, IRG typically receives some of the basic biographical information on the generator unit including the manufacturer, date of manufacture, model number and size in MW.   Depending on the information provided, we may ask a series of further questions such as the length of the stator or rotor, the temperature class for the insulation required, and the time frame for the outage.

Once the full extent of the maintenance work has been defined, IRG can provide an approximate quotation for the spare parts and components required for the project.   Especially in cases where IRG will supply a complete spare parts kit including insulation materials, it will be important to define exactly which materials will be needed to be provided for the project.

Generator Spare Parts Production Procedure

As soon as the generator has been fully inspected, we request a complete set of sample materials pulled from the unit.   Especially in the cases of insulation components, these samples provide critical final design information for the manufacture of the spare parts.   Due to the fact that most components had been custom made for that unit, it is rare to find drawings from the original equipment manufacturer fast enough to complete the project within the outage time limits.  For that reason, we will need to obtain drawings made from the samples or we will have to receive the actual samples to make our own drawings for submission and approval final to manufacturing.

IRG prides itself in being one of the most responsive supplier of generator spare parts in the world.  Our shipment lead-times will allow our customer to maintain their outage schedule.   We typically supply the spare parts faster than the repair crew can install them into the machine.   To obtain such short lead-times, it is absolutely critical to obtain complete information on the spare parts required as fast as possible.

IRG Power Systems Division
2121 Walton Road
St. Louis, Missouri 63114  U.S.A.

Tel: (314) 726-5990 * Fax: (314) 726-5850
email@irgpowersystems.com

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