What meant by lagging and leading? When if they are
occurred what preventive methods should be taken?
- 14 Answers
- 50491 Views
- ABB, L&T, I also Faced
- E-Mail Answers
Answer Posted / ashish
Lagging means current is lagging with respect to voltage by
some angle and in case of leading current leads voltage by
some angle.
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 |
Post New Answer View All Answers
Hi,I am working in abroad for more than 3 years in a company operating with 11kv and 6.4 MW power. I need c licence in India,can I? some other says only i can get if i work for 2 years in india only! anybody kindly clarify by doubt.Thanks
I completed my BE EEE degree 2006 .... which license should i apply .... ?????
What are dependent sources?
How many turns are there in primary winding? (In Transformer)
What difference between ref protection and differential protection ?
how we calculate torque ? how we improve it ?where torque will either motor or generator ?
what is cascade speed control device?and how this device control the speed of motors?
A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
im electrical engineer, could any one help me for FEWA exam questions please ?
Why neutral is not used in three phases dol starter
what is mean by kneepoint voltage? when it will happen? ( my doubt is, if CT secondary is open means ct get saturation or blas? what are factors are required for calculations? plz give currect anws:
how we will deside the high voltage value
how can we determine size of a cable by knowing the kw or current rating of a load?how can we calculate the resistance box of a slip ring motor?
Explain about c.t?
what is earth fault relay 64T, why it is used in main Incomer and neutral CT of Transformer.
