Question { Enercon, 8169 }

What will be happend if we not ground CT secondary?

Answer

If the secondary of the CT is not grounded or short circuited
then the secondary current will become zero hence the ampere
turns produced by secondary will oppose the ampere turns of
primary(i.e brings to zero). So, there is no counter m.m.f so
high flux is produced in the core thus overheating of core is
produced. Similarly high e.m.f will be produced both in
primary and secondary this will damage the insulation of
winding. Thus for safe operation for the operator the
secondary must be grounded properly

Question { TATA, 6039 }

how many bulb of 60watt at 300volt is used to maintain 0.25
amp.with valid reason?

Answer

Both ans are correct. Rammamurthy's ans is for DC where as Ashutosh Khadgaray's ans is for AC

Question { 12404 }

What happens if there is no HP and LP By-pass.

Answer

To Mr. Rajagopal's answer also another advantage is DM water
is not wasted since it is collected in the condensor

Question { 18373 }

1. what is meant by burner tilting?

Answer

It is a flame control method. this is applicable only for
tangentially fired boilers so that the burner can be tilted
+30 and -30 degrees. This is used to maintain the temp of
steam in the tubes.

This is a mechanical arrangement in which all the 6burners
on the four corners are tilted simultaneously

Question { SECL, 11392 }

what is block out in thermal power plant?

Answer

Actually it is black out. Black out means complete power shut down due to any problem. No generation is known as black out