Hello sir
This is prakash from
bangalore i have a doubt why we have to
maintain DG power factor in the range
0.78 to 0.8
Perhaps i f it is increased means what
will happen in DG
Answer Posted / k.prakashchandra
Keeping pf at 0.8 lag when running in parallel means the
terminal voltage of gen is higher than the system or busbar
voltage.But it results in higher gen & field currents which
cause unwanted heating of armature and also the field.If
you keep the pf at unity or -ve,the gen does not contribute
to system stability.The generator should also share the
reactive power of the system, which is usually
lagging.Anyway pf may be maintained at 0.9 to 0.95 lag.
Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
i want to learn control schedule for 11kv panel? can any one send the detailed control schedule?
How many devices can be connected in one zone of FACP
WE know that for Inductor X=2pifL,In DC f=0,then X=0 so,V=IX=0;But In the DC excitation of rotor of AC generator,DC motor field coil which coils are inductor so why does not applying DC voltage short the rotor coil of AC generator and field coil of motor?If it would then DC source might be damaged but it is not happened. Why does the strand conductor of Electrical power transmission line make twist?
what r the safety measures in UPS ? explain all?
Why IR value of the (HT cable Plus synchronous motor) is less while individually having IR values in GΩ?
What is routh hurwitz stability criterion?
Refernce currents are to be generated using refernce cueernts how can this be done
If I want to connect a capacitor bank on the HT side of a 11kV/415V, 3 phase delta-star distribution transformer to supply Reactive power to it..what practical specifications of a Capacitor bank that can i've??please reply..
HOW DOES THE ELECTRONIC ENERGY METER WORKS?
when we have to purchase the transformer by own i.e how much load will preferred HT connection?
How can we increase fuel-power ratio of any DG set?
all the technical question with answers pleas send your email id ramar_eee@yahoo.com
what will happen if multimeter(selector switch at DC voltage) and terminal at current is connected to DC supply?
how to find three phase complex power in per unit and MVA?
What is the types of HT motor testing