Why the frequency of a system is changed if the load changes?
Answers were Sorted based on User's Feedback
Answer / amol
As the load increases the speed of turbine decreses to
maintain the altenator output constant.
As the turbine speed reduces the frequency is reduces
because f is directly related to speed.
Same happens in case of reduction in load ie as load
reduces frequency increases.
Is This Answer Correct ? | 11 Yes | 0 No |
Answer / shiv sharma
frequency control is the difference b/w generation and
load ,if your load is greater than your generation then
frequency would decrease and similarly if your generation
is more than your load ,frequency would increase.If both
values are equal then frequency would remain stable i.e 50
hz in india.
Regards,
Shiv
Is This Answer Correct ? | 9 Yes | 5 No |
Answer / deepak mishra
When the electrical load on generator is increased suddenly i.e. the electrical power is more than the mechanical input. This difference in power is compensated by stored kinetic energy in rotor, now there is a continuously reduction in stored kinetic energy, resulting drop in turbine speed and corresponding reduction in generator frequency.
Is This Answer Correct ? | 3 Yes | 0 No |
Answer / ghazi
since we know that if we cosider induction motor speed
=120f/p since on increasing load ....speed varries
(decreases) hence frequency changes.
Is This Answer Correct ? | 4 Yes | 7 No |
Answer / k.prakashchandra
dF= dQ/dL where Q is generating capacity in the system
Is This Answer Correct ? | 0 Yes | 5 No |
What is Working principle of electronic choke?
Explain mechanical rotational system?
What is distance between electrical panel to land ?
why Power transmssion voltages are as 11kV,33kV,66kV,220kV and so on only?
why should be the frequency is 50 hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50
Can anyone tell me how a 12v battery is transformed to 20,000v at the spark plug
onan full form
Safety of dry type transformer
In a large office how do we calculate required number of light fittings, assuming fittings are 4x18W or 2x36W fluorescent fitting ?
what is the value of the earth resistance in mositure place
what is the function of a Master trip relay? why is it used ?
5 Answers ABB, Nissi Engineering Solution,
in 11kv generators the neutral point is connected to earth via earth coil while in the 33 / 11 kv transformer the neutral point is connected to earth via earth resistor why?