What meant by lagging and leading? When if they are
occurred what preventive methods should be taken?
Answers were Sorted based on User's Feedback
Basically Three types of load are there..
Resistive load always having unity power
factor.So we do not consider that type of loads.
In Inductive load Having Lagging power
factor,so we must improve the power factor.For this
improvement we can choose capacitor,Synchronous Motor
connected in parallel.These Loads give the Leading
current ,so it is compensate the lagging current...
|Is This Answer Correct ?||82 Yes||3 No|
Answer / nilesh agrawal
lagging means the current is lag the voltage and leading
means the current is lead the voltage,when the circuit is
inductive ,current lag behind the applied voltage.when the
circuit is capcitive the current is leading the voltage.
to improve power factor a capacitor is connected in
parralel with the ckt.
|Is This Answer Correct ?||51 Yes||7 No|
Answer / aditya dashora
lagging and leading are gererally refered as current over
the voltages. if we say its lagging then it is the current
must be behind the voltage and on the other hand in
leading ,current must be ahead voltage. in power system we
use lagging power factor in operation but its above .85.
|Is This Answer Correct ?||49 Yes||18 No|
Answer / ashish
Lagging means current is lagging with respect to voltage by
some angle and in case of leading current leads voltage by
in case of resistive load: current and voltage are in phase
ie angle between current and voltage is zero.
in case of inductive load:- current lag behind with respect
to voltage by some angle.
In case of capacitive load:- current lead voltage by some angle
Only remember CIVIL :- That means in case of capacitor(c)
current(I) leads with respect to voltage. similarly in case
of inductive (L)load we start from right side: current (I)
lag by some angle w.r.t to voltage.
|Is This Answer Correct ?||29 Yes||2 No|
Answer / nimish
it is a power facotr. Lagging means currents lags behind
the applied voltage by some angle and leading means current
leads the applied voltage by some angle. to improve the
power factor we should use a capacitor bank in parallel
with inductive load.
|Is This Answer Correct ?||16 Yes||2 No|
Answer / mahesh kumar ray
lagging and leading is the relation of current and voltage.
lagging means current achieve its peak value after the
voltage and leading means current achieve is peak value
before the voltage. this leading and lagging is expressed with
respect to time or angle.for example suppose that at time 't'
the value of current is 'i' then in case of lagging at same
time value of voltage will be 'vm'.
|Is This Answer Correct ?||14 Yes||5 No|
Answer / rahul
but keep in mind that the concept of lag or lead is valid
only when BOTH V and I waves are sinusoidal.
THEn lag__ I lags V
lead__I leads V
|Is This Answer Correct ?||8 Yes||0 No|
Answer / soni
I liked ur way of explaining... thanx
|Is This Answer Correct ?||6 Yes||2 No|
Answer / yogeesh.b
capacitor should be incresed in lagging power facitor
indactene should be incresed in leading power facitor
|Is This Answer Correct ?||5 Yes||2 No|
Answer / suraj rawat
leading = current phase> voltage phase
lagging = eans current phase < voltage phase
|Is This Answer Correct ?||2 Yes||0 No|
how to find the starting current of the motor?
what is compatible kva for 3300 watts and why
What is the Difference Between MCCB & ACB & VCB
what is power transformer?
why threre are two parallel lines in transformer's symbol?
How short circuit MVA(Fault MVA) in a power system calculated for calculating number of earth plates ?
If 3-Ph motor of same rating connected in Delta & Star for same load one by one then which connection take more current in running (not in starting)for full load.(eg 8.5 KW,3-Ph 400 V)
Where r use in Dc motor in power plant?
what is hysterisis loss and eddy current loss? how it occurs?
trasnfarmaer core make
How can transformer winding insulation be measured (Delta & Star Connections)?
what is the physical connection of a analog i/p to a analog i/p module (ab plc)and through a analog o/p module(ab plc) to a analog o/p . and how all the process control by scada