why induction motors are of lagging type and not leading
type
Answers were Sorted based on User's Feedback
Answer / jagadeesh
because induction machines are single exited machines.
but synchronous machines are double exited, in case of
double exited machines pf can be controlled by using field
excitations(pf it may be a lagging or it may be a leading)
Is This Answer Correct ? | 42 Yes | 11 No |
Answer / iamdon
Induction motor is a singly excited machine.It means there
is no scope of power variation by varying the excitation.So
the nature of power factor is solely decided by the nature
of winding,which is moslty inductive.Thats why Induction
motor has always lagging power factor.
Author:arbelectbit@yahoo.com
Is This Answer Correct ? | 23 Yes | 1 No |
Answer / ankit
this is because induction motors draw a magnetising current taht lags the supply voltage..
Is This Answer Correct ? | 20 Yes | 2 No |
Answer / hema chandra.m
as per electrical rools current leads the voltage in pure
capacitive loads
current and voltages are in phase in pure resistive loads
current is lagging the voltage in pure inductive loads
induction motor is pure inductive load thats why induction
motors are lagging type only not leading type.
Is This Answer Correct ? | 10 Yes | 2 No |
Answer / sridhar
induction machines are single exited machines.
but synchronous machines are double exited, in case of
double exited machines pf can be controlled by using field
excitations(pf it may be a lagging or it may be a leading)
Is This Answer Correct ? | 8 Yes | 2 No |
Answer / vinay kumar
induction motors draws only lagging power factor because induction takes place between stator and rotor and it draws only magnetising current
Is This Answer Correct ? | 3 Yes | 1 No |
Answer / pardon siabala
becouse in induction motors current lags the voltage.
Is This Answer Correct ? | 1 Yes | 3 No |
Answer / s.krishnan
induction motor just like inductive load because its have
more copper windings.so induction motor has lagging type
load not leading type load.
Is This Answer Correct ? | 4 Yes | 7 No |
Answer / k.karthik
because all motors are considered to be inductive loads.so
induction motors are lagging type and not of leading type
Is This Answer Correct ? | 7 Yes | 16 No |
hii this is ranjith from hyd... i want to know what type of questions they ask in interview...and hw the interview will go..? what subjects thay ask specially for electrical engg students?
I have a 1000 kVA Transformer(11kV/0.415kV) and a APFC panel of 400 kVAR(LT).Now if i want to remove the LT APFC panel and install a HT(11kV) APFC panel on the HT side is the HT APFC panel will work same as the LT APFC panel(improve the power factor),if yes what will be rating of the HT APFC panel?what is the formula to calculate HT APFC panel rating???
What principle and operation of frency drive
What is restricted earth fault protection ?
what will happen when ac is applied resistor,inductor,capcitor?
what are the standard values for resistances(Megger testing) between L&N, L&E and N&E (L=Live,N=Neutral, E=Earth)?
What type of isolation transformer used in UPS's?? It's Star-Delata Or Delata-Star????Why it is used????
Is it possible to import & export power through the same power transformer? what will be the vector group normally for both different or same?
CAn any one can tell me what is the operation of ceiling fan and how it will start
What are the test involved in DG auto synchronizing panel before in manufacturing place before dispatch.
What is the difference when selecting a cable between AC and DC current?
are induction motor have poles? yes / no , why?