Answer / muthu

in order to avoid the negative peak in the output voltage

Answer / zakeer

Inductor is a magnatic field storage device after
disconnecting from the ckt it acts as a source up to it
discharge like capacitor.
at the time of chainging of signe in a transformar it
have -ve voltage more than supply voltage so the scr or
diode is conduction state up to the inductor is discharged
at this time we got -ve peak for discharging rapedly we
connect the free wheeling diode across the inductor.

Answer / s.narayanaswamy

WHEN A INDUCTIVE LOAD IS OPENED IT CREATES VERY HIGH BACK
WHICH AT TIME CAUSE THE FAILURE OF COMPONENTS.BY PROVIDING
FREE WHEELING DIODE BACK EMF WILL NOT BE MUCH AS THE
CURRENT CIRCUITWILL COMPLETE THRU INDUCTOR &DIODE &THE
VOLTAGE WILL NOT BE THERE IN OTHER CIRCUITS

Answer / karthick.v

flyback diode (sometimes called a snubber diode,
freewheeling diode, suppressor diode, or catch diode[1]) is
a diode used to eliminate flyback, the sudden voltage spike
seen across an inductive load when its supply voltage is
suddenly reduced or removed.

Answer / ravindra

1.load current is continuous
2.avoid from nagative voltages at the output
3.improvement of powerfactor
4.not required any firing angle to conduct

Answer / tushar gawas

TO SUPRESS THE BACK E.M.F PRODUCED DURING SUITCHING THE
INDUCTIVE LOAD.

Answer / dilawar aptel

to avoid the current flow in reverse direction

Answer / tamil

To avoid the negative current flow

Answer / aditya vardhani

free wheeling diode acts when in the reverse biased state
of thyristor to maintain continous load cuurent & increase
the performence of the device

Answer / venkat parthasarathy

AS the supply cuts off the current will not become
zero,because there will be some energy stored in inductor.It
will create a reverse current.If the contacts seperate the
back emf will damage the cicuit components. Hence the free
wheeling diode is connected to provide a closed path for the
current until it vanishes.....

in 5 mva transformer 33/11 kv s/s what rating of capacitor bank is required & what is the fourmula for rating

6 Answers  

what is working parincipal of a ht transformer

0 Answers   Pidilite,

What is the physical significant of power factor?

0 Answers   Cooper,

can we use optical fibre to electrical power transmission ?

1 Answers  

"TRANSFORMER MODELING AND ANALYSIS" MEANS WHAT AND WHICH TOPICS U READ IN THIS

0 Answers  

why transformer ratings in kva? & DG ratings in kva? & Motor ratings in kw/HP?

0 Answers  

How To increase Knowledge Of boliler regarding To Only Electrical Field..

0 Answers  

Write the Name of 7 Birsrestho of Bangladesh with their designation

1 Answers  

ward lconard control

5 Answers   Bhel,

how induction motor work as a generator?

2 Answers  

what is the difference between E.L.C.B & R.C.C.B?

2 Answers  

what is the type of starter used in tube light?

2 Answers