Improved combined-cycle plant protection, reliability, and availability using generator circuit breakers
Conference
·
OSTI ID:5876418
- ABB Power Generation Ltd., CH-5401, Baden (CH)
- ABB High Voltage Technologies Ltd., Div. AG, Ch-8050, Zuerich (CH)
Either a conventional start-up transformer configuration or a Generator Circuit Breaker (GCB) configuration can be used to interface the generators driven by the gas and steam turbines in a Combines-Cycle plant with the HV transmission system. The GCB configuration provides the following major advantages: 1. improved protection of the electric generator, the main transformer, the unit transformer, and the electric auxiliaries required for the gas and steam turbines; 2. increased power plant reliability and availability lower total investment costs; 3. more predictable and less expensive maintenance.
- OSTI ID:
- 5876418
- Report Number(s):
- CONF-901034--
- Country of Publication:
- United States
- Language:
- English
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