Podcast
Questions and Answers
What is the maximum allowable total load for all generators before stopping the generator?
What is the maximum allowable total load for all generators before stopping the generator?
- 4000 kW
- 3500 kW
- 3000 kW
- 3277 kW (correct)
Which valve must be closed to shut down the T/G driving steam?
Which valve must be closed to shut down the T/G driving steam?
- TA-V4
- TA-V11
- TA-V1S (correct)
- TA-V12
What should happen to the shaft revolution during the turbine stopping procedure?
What should happen to the shaft revolution during the turbine stopping procedure?
- It should reduce. (correct)
- It should increase rapidly.
- It should stop abruptly.
- It should remain constant.
When can the turning gear motor be started?
When can the turning gear motor be started?
How long should cooling down occur after stopping the turbine?
How long should cooling down occur after stopping the turbine?
What is the appropriate bearing temperature for the turbine and generator during the stopping procedure?
What is the appropriate bearing temperature for the turbine and generator during the stopping procedure?
What action should be taken if the generator needs to start within 2 hours of stopping?
What action should be taken if the generator needs to start within 2 hours of stopping?
Which valves need to be confirmed to be fully open during the stopping procedure?
Which valves need to be confirmed to be fully open during the stopping procedure?
Flashcards
What is the maximum allowable load before stopping a generator?
What is the maximum allowable load before stopping a generator?
Before starting the generator stop procedure, the total load on all generators must not exceed 95% of the rated load (3277 kW).
How is the generator load managed during the stop procedure?
How is the generator load managed during the stop procedure?
The procedure involves shifting all load to another generator before initiating the stopping process.
What is the first step in stopping the generator?
What is the first step in stopping the generator?
Initially, the T/G driving steam is shut down by closing the valve TA-V1S and reducing the steam pressure to 12/5.7 MPaG.
When is the turning gear motor started in the stop procedure?
When is the turning gear motor started in the stop procedure?
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What is the final step in the generator stop procedure?
What is the final step in the generator stop procedure?
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What is the purpose of the turning gear after the generator stops?
What is the purpose of the turning gear after the generator stops?
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What does exhaust valve ALARM #1 indicate during the generator stop?
What does exhaust valve ALARM #1 indicate during the generator stop?
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How long does the turbine need to cool down after stopping?
How long does the turbine need to cool down after stopping?
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