AC is the magnitude of sinosudial-wave but we use cose value to determine power factor instead of sine value.
Answer Posted / pradyumna chandra panda
Current leg or lead behind or ahead the voltage from maximum value ( from 90°) of alternative Qnty is called legging or leading power factor which is equal to rest valve ( 90° - legg / + lead) of sine ie. legging 36° of cose value ( .8 ) is equal to rest value of sine 54° (90°-36°) ie .8 Therfore we indirectly use sine value by appling cose value. Is this correct ? plz give your openion.
Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
what is the formula for calculating the phase clerance between two phases and phase to earth how to calculate the cable for a motor
What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side
What is nyquist contour?
how to calculate the tarriff for an industry whose kva demand is 10 mva
how single phase preventer works ?
How cmd is calculated in case of energy neters
11000volt DG set carnt kaise banvay
This is reqd for a 1MW Solar power plant..We have 2DC outputs from the solar panels Connected to 2INVERTOR panels.. Output from invertor is 3ph,280v,500kva,50hz.These are connected to individual ACB.This has to be stepped up to 11KV ,1250KVA SYSTEM.Now can I use (1) one more ACBTO GIVE A COMBINED OUTPUT OF 1000KVA,280V & STEP UP THE OUTPUT BY USING a single two winding 3 ph transformer 11kv/1250kva. or (2)use the two outputs and connect to one three winding transformer of above rating..Pls suggestwith details.
How to Calculate The Neutral Earth flat design calculation for the Synchronised generator (Gen 1-650Kva, Gen 2-725Kva
lamination figures
Why mostly the HV side of transformer has Delta?
How does the phase sequence controller works, how it identifies the phases? confirm working principle
We have received supplies of the ordered material. payments against the supplies also released. Where ST paid 4% against form C. Meanwhile it has been observed that 25% of material supplied was defective. Please suggest whether the issuance of C form from our side would be stopped till settlement of liabilities.
how diside ct mf exmp.200/5 ct
How to determine stage of Automatic Power factor controlling Relay(Apfcr)?