Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / muhammad zubair
electrical power factor is the ratio b/w actual power(kw)
and apperent power (kva).and also ratio b/w resistence and
impedence of a circuit.when ohmic resistance and impedence
will come equal power factor will becom unity.we can
improve pf to control the inductive reactance of a coil.
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
Name a govt approved university which have 100% online engineering course.
why are distributed windings generally used in alternators?
WHAT ARE THE DISADTAGES OF SINGLE-WIRE-EARTH-RETURN SYSTEM USED FOR RURAL ELECTRIFICATION?
DG SET BLOCK DIGRAM
details of oil cell size of Breakdown voltage test of tranformer oil details as per Standardswith mushroom electrodes?
How each of the following losses occur in d.c machines (i) copper (2)core (3) windage (4)friction please help me
What are the basic elements used for modeling mechanical rotational system?
Phase control and integral control are used for?
why we are using Load factor?
HOW can i REuse the fused MLL LAMPS & GLS LAMPS at our factory
If a high resistance fault occurs,then what are the changes will happen in the system?
at meter room 50 hrc switch installed,but there are not get earthing proper,so what happen?and 11kv transformer out put going in to hrc main 400a three nog each? so earthing is require for all switch? (some customer made earthing at there home.)
why impedance relay is used for medium transmission line protection
what is parellel power factor correction?
Dear all, I just want to ask an expert on this forum for some insights. For the magnetic balance test, when applied voltage on a Delta-Star transformer e.g. Dyn11, the following relationships apply for HV side: 1. H1-H2 = H2-H3 H3-H1 2. H2-H3 = H3-H1 H1-H2 3. H3-H1 = H1-H2 H2-H3 For the LV side also: 4. X1-X0 = X2-X0 X3-X0 5. X2-X0 = X3-X0 X1-X0 6. X3-X0 = X1-X0 X2-X0 Is there a similar pattern for Y-d, Y-Y, D-d? And how about Y-z, D-z, Z-y transformers? I've tested a YNzn5 transformer and for LV side I don't see the pattern. In this particular case I got for LV side the following (see values below): H1-H0 H2-H0 H3-H0 X0-X1 X0-X2 X0-X3 128.0 119.9 7.2 29.2 13.3 15.8 70.7 128.4 59.2 23.4 22.0 3.6 7.2 120.1 128.1 13.4 29.3 15.8 What is the relationship here for LV? For row 1 I see the relationship, for row 3 I also see but it's shifted, but for row 2 I don't see such relationship. Any suggestions, answers, someone?
