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Resources / Library / Articles
Article:
Inspection/Test Impact on Maintenance of Generators
Author: Clyde V. Maughan, Maughan Engineering Consultants
Abstract:
This paper deals with the maintenance of the generator. Three primary tools such as monitoring, inspection, testing are used to assess the generator condition. Use of all available knowledge on a specific generator can minimize the maintenance costs required to maintain a high level of reliability on the generator. To accomplish this goal, good operation and maintenance records are important, as well as attention to all available monitoring information, performance of a high caliber inspection, and judicious use of a selected set of appropriate off-line tests.
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Article:
Preventive Maintenance Overhaul Experience for Rotating Brushless Exciters and other Excitation systems
Authors: Tom Figiel, Commonwealth Edison; Jim Bothwell, Consultant; William Moore, National Electric Coil
Abstract:
The cost to purchase and install a replacement static excitation system is very high. A less expensive but equally reliable solution is to carry out important preventive maintenance activities and keep failures from occurring. This paper presents important preventive maintenance activities, necessary to ensure high reliability. Common failure modes are reviewed as well as important overhaul items that should be addressed.
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Article:
Carbon Brush Collector Maintenance on Collector Rings
Author: Clyde V. Maughan, Maughan Engineering Consultants
Abstract:
This paper discusses collector performance and root causes of collector forced outages, and will provide guidance on identifying and correcting collector operating conditions before serious problems develop. In addition, information is included on retrofit of fixed brush holders with removable brush holders. Performing of the items in the maintenance checklist at the end of the paper, Table 1, should greatly reduce or eliminate exposure to carbon-brush collector service problems.
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Article:
High Speed, Low Speed, or No Balance at All
Authors: Bill Moore, PE, National Electric Coil
Abstract:
Article discusses liabilities and merits of choosing different balancing options facing the owner for balancing the generator after a rewind
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Article:
Root-cause diagnostics of generator service failures
Author: Clyde V. Maughan, PE Emeritus, Maughan Engineering Consultants
Abstract:
This paper is intended to give guidance to user maintenance personnel on obtaining better diagnostics of failure root cause. It is hoped that through better understanding of the difficulties of obtaining accurate generator diagnostics, maintenance costs can be reduced and generator reliability improved. The paper will illustrate many typical failures, and will discuss the difficulties in root-cause analysis of the failure. The paper will also offer suggestions on means of obtaining necessary technical assistance to assure accurate assessment of root cause.
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Article:
Include generators and exciters in your outage inspections
Author: Bill Moore, PE, National Electric Coil
Abstract:
Generators and exciters don't get much respect during scheduled outages. If yours fall into that category, a strategy that includes regular inspections and routine maintenance is all the more important for identifying incipient problems that could bring a plant down. Learn how to keep your generator or exciter from suffering any of the problems photographed and detailed in this article.
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