When preparing to get underway and the jacking gear has been disengaged, the main turbine rotor should NOT be allowed to remain stationary for more than 3 minutes because __________.
A
uneven heating from gland seal steam can cause distortion of the rotor
B
the turbine drain lines can fill with condensate
C
main condenser vacuum will drop rapidly without steam flow through the main unit
D
with no rotor movement, the journal bearings may overheat due to reduced lube oil flow
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Question 1 / 205eccefa1bacbc34ba4d472d8
Question 1 of 205eccefa1bacbc34ba4d472d8
When preparing to get underway and the jacking gear has been disengaged, the main turbine rotor should NOT be allowed to remain stationary for more than 3 minutes because __________.
When preparing to get underway and the jacking gear has been disengaged, the main turbine rotor should NOT be allowed to remain stationary for more than 3 minutes because __________.