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14 Cards in this Set
- Front
- Back
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What is rod speed for control banks in manual? |
36 SPM. |
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What is rod speed for control banks in auto based on? |
Temp Error = Tave - Tref
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What is rod speed for shutdown banks? |
64 SPM. |
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What does 0-100% correlate to on PT-485? |
0-664 psig. |
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What does the Logic Cabinet consist of? |
Pulser - Master Cycler - Bank Overlap Unit - Slave Cycler |
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What does the Pulser control? |
Controls the rate of rod steps. |
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What does the Master Cycler control? |
Initiates GO signals at zero and three. - Zero is for group 1's. - Three is for group 2's. |
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What does the Bank Overlap Unit do? |
Designates which BANK receives the GO signal. |
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What does the Slave Cycler do? |
Generates stationary, movable, and lift current for rod movement based on GO signal. |
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When does the Bank Overlap Unit count? |
Only in auto or manual. - Not in bank select. |
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Explain what each Power Cabinet controls. |
1AC: Group 1 of Control Banks A and C; and Shutdown Bank A. - 1BD: Control Banks B and D; and Shutdown Bank B (these banks only have 1 group each). - 2AC: Group 2 of Control Banks A and C; and Shutdown Bank A.
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At what point does turbine first stage pressure prevent rod withdrawal? |
AUTO rod withdrawal is prevented <15%. - MANUAL rod withdrawal is still possible for start up. |
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What are the Auto and Manual Rod Stops? |
Power Range: 1/4 > or = 104% - Intermediate Range: 1/2 ~23% - OP delta T: 2/4 1.5F - OT delta T: 2/4 3.0F |
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What are the required alignment limits for individual rod positions? |
Plus or minus 18 steps of demanded position in mode 1 >85 % RTP; when bank demand position is < 215 steps. - Plus or minus 24 steps of demanded position in mode 1 >85% RTP; when demanded position is 215 steps or more. - Plus or minus 24 steps of demanded position in mode 1 < or equal to 85% or mode 2. |
