Answer Posted / k.prakashchandra
Yes.By varying the excitation i.e. the terminal voltage.If
the voltage of the generator is more than the grid
voltage ,the pf will be lagging and the vice versa.But the
pf has to be maintained at 0.9 to 0.98 lag ,for system
stability.A poor pf results in higher armature current
which is also not desirable
| Is This Answer Correct ? | 22 Yes | 2 No |
Post New Answer View All Answers
what is the purpose that we use PLC system in power system
What is value of earth resistance required for substation and equipment earthing and what are the reference guidelines
what is draiv work
any body,pls tell me how to done relay coordination ? how to coordinate by TCC curve?how to read the tcc curve?
where does 22kv line starts
How can we checked Killo Watts of Motor & Alternator?
What is inrush current? how can calculateit? what is the affect of it?
when generator short circuit condition, the current how dissipates. or at short circuit voltage not available then current how can flow?
How many wall/floor flange will i use in bus duct system if we have in our design a 35th floor building.
i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value
can anybody tell me that for p.f. Improvment we use capacitor banks but how to decide its capacitance. As we all know how to calculate kvar but what abt capacitance value
how we decide wire gauge for ac or dc coil and what is the basic diff. B/w these two coil?
A car's starter motor draws a current of 100 A at 12,0 V when starting the engine. The mechanical power required to turn the engine is 960 W. At what rate is energy from the battery converted to non-mechanical forms of energy?
PLEASE SEND ME NTPC RELATED INFORMATION LIKE WHICH TOPICS HAV MORE SCOPE,BOOKS TO READ,CUT OFF...PLEASE.mail at thiru.1203@gmail.com
Why IR value of the (HT cable Plus synchronous motor) is less while individually having IR values in GΩ?
