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Course Category
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Course Schedule
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G543 - (GE) Static (Bus Fed, Shunt, SCR) Excitation
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4 days - 2.6 Continuing Education Units Awarded
This course was designed to provide the participant with the knowledge necessary for maintaining, troubleshooting and repairing GE's Potential Source and Shunt SCR Static Excitation Systems. This course provides a detailed coverage description of the equipment, principles of operation, as well as maintenance and troubleshooting. This course is a print intensive course with emphasis on expected voltage levels at the test points provided on the cards. This course is recommended for both technicians and engineers.
Topical Outline includes: System Overview, Identification of Major Components, Inner Loop Regulator, AC/DC Gate, Firing Circuit, AC Regulator, Relaying, SCR Bridge, Maintenance and Troubleshooting.
This course is designed for Engineers, Technicians, and Electricians who have a need to maintain this system.
OBJECTIVES
Upon completion of this course, participants will be able to:
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- Describe how the Static Excitation System works.
- Location the major components making up the Static Excitation System.
- State the purpose of each of these major components.
- Demonstrate the ability to interpret alarms.
- Describe corrective actions to be taken, given an alarm description.
- Demonstrate the knowledge necessary to perform recommended operational tests.
- Demonstrate the knowledge necessary to perform periodical maintenance.
- Demonstrate the knowledge necessary to accurately calibrate this system utilizing the necessary OEM drawings.
- Demonstrate the knowledge necessary to quickly and safely troubleshoot systems if a problem should occur or a component fail within the system.
COURSE OUTLINE
- Major Components: Power Potential Transformer (PPT), Regulator Section, Rectifier Section
- DC Regulator
- Inner Loop Regulator
- AC/DC Gate
- Firing Circuit Control: Synchronizer, Reference Phasor, Trigger Generator Boards, Gate Driver
- AC Regulator: Signal Conditioner, AC Voltage Sensor, Impedance Compensator, AC Regulator, AC SVA, Transfer and Tracking, Underexcited Reactive Ampere Limit (URAL)
- Relaying and Control Circuits
- SCR Rectifier Bridge
- Maintenance: Preventive Maintenance, Troubleshooting and Repair
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