if HP LP Bypass opened in running condition then what happen in 210 MW thermal

if HP LP Bypass opened in running condition then what happen
in 210 MW thermal plant

Question Posted / mohan

2 Answers
7695 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

if HP LP Bypass opened in running condition then what happen in 210 MW thermal plant..

Answer / k. v. vidyanandan

Consequences will be different with different loading conditions of the unit.

Whenever HPBP opens, immediately LP bypass will also open due to the increase in HRH pressure. This may lead to a reduction in condenser vacuum (i.e. increase in condenser pressure). If the condenser pressure goes beyond the set value, turbine will trip on Low Vacuum Protection. This may possibly happen if the unit was running at full load.

If HP BP opens at part load, still LP BP will open, however, chances of vacuum crossing the safe limit is less and therefore unit may survive. But, due to the opening of HP BP, MS pressure will fall, load will reduce and there will be drop in drum level. Operator will get adequate time to take corrective action in this case.

Is This Answer Correct ?

11 Yes

0 No

if HP LP Bypass opened in running condition then what happen in 210 MW thermal plant..

Answer / sam

Nothing will happen because there is isolating valve before hplp bypass valve.

Is This Answer Correct ?

0 Yes

5 No

Post New Answer

More Mechanical Engineering Interview Questions

Air is a bad conductor of heat.why it becomes hot in summer?

2 Answers

what will happen if we inject diesel in petrol engine and petrol in diesel engine.

11 Answers

pl. send me jr.engg.model question for rrb malda.

0 Answers RRB,

Who built the trans alaska pipelene?

0 Answers

In Automobile Transmission System,The clutch is in b/w Transmission system & ___________

8 Answers Bhel,

Which questions will be asked for mechanical design Engineer position in GE?? plz give me reply it's urgent...

0 Answers GE,

I need BHEL apptitude questions

0 Answers Bhel,

Metals, in general are of low strength and do not possess required physio-chemical and technological properties for a definite purpose. Alloys are therefore more than metals alone. Discuss the arrangement of atoms and structures of alloys.

0 Answers

question related 2 soal car: Working under a bright light bulb or in direct sunlight, experiment with the angle of light hitting the solar panels. What angle gives you the fastest rotation of the wheels? How would you modify this car to make the wheels turn faster? How would you modify this design to make a car that could carry or pull a heavier load? How could you modify this design so that your car could run for short periods in complete darkness or low light situations?

1 Answers

what is powercopy in catia v5

2 Answers

how can calculate COP?

5 Answers

what is gyroscopic & gyroscopic effect

4 Answers

For more Mechanical Engineering Interview Questions Click Here