Answer / sathish

harmonics generated by nonlinear loads is presented

Answer / krishnaswamy.b

1. During switching 'on' the transformer that causes
magnetising inrush current with the core still in the
magnetising build-up state harmonics occur.
2. Due to non linear loads.

Answer / ulaganathan

this is due to magnetostriction energy . whenever
ferromagnetic material during magnetization changes
therefore it results in a loss and this effect is
called as magnetostriction and this is the reason
for the generation of harmonics

Answer / rakesh gupta

when transformer is running with no load.then current flow
in transformer is very high than rated current of
transformer. this current is know as magnetising inrush
current. it is contain different types harmonics i.e dc
component (30% to 40% ) ,secondary harmonic (30% to
70% ),third harmonic
(10% to 30%).

Answer / jay mehta

Plant side many Electrical Drives and UPS connected ,so its
genereted harmonics

WHAT IS INERTIA,AND WAT IS TORQUE.

0 Answers  

why we are using R,Y,B colours for 3 Phase ?

4 Answers   ITC Infotech,

How many sprinklers should be in one pipe line?

0 Answers  

How to do maint. Of busbar.

1 Answers   KSEB, L&T, Siemens,

how to calculate distance between busbar supporters for LT panel, what are the factors influencing in this design

0 Answers   Amara Raja, TATA,

In how we connect watt meter for open & short circuit test of a single phase transformer.

2 Answers   Sail,

How we calculate airgap between phases & terminal box of the transformer? any formulae.

1 Answers  

explain the transient reactance

1 Answers  

when we catch any one of the phases with our both hands in air(without touching ground),our body acts as a conductor.is it correct.please clarrify it.

4 Answers  

why dc moter are not earthed ????

2 Answers  

i am iti student i have project to do. that IS 100MW 220\33KV SUBSTATION I WANT TO KNOW HOW TO START, LIKE CALCULATION, WHAT RATING OF CT,CVT, PT, ISOLATOR LIGHTING ARRESTER WAVE TRAP CIRCUIT BREAKER IN 22OKV SIDE, ALSO TO WARDS 33KV SIDE PLS HELP ME WITH THIS, THIS MY LIFE NOW, I KNOW AUTOCAD, I LIKE TO KNOW HOW TO CALCULATE ALL THE THINGS

3 Answers  

what is the function of series reactor

3 Answers   Adhunik, INOX, RMSI,