Interested to Buy Any Domain ? << Click Here >> for more details...
When a square wave is applied to primary of a transformer
then what will be output wave form of secondary ?
- 15 Answers
- 51706 Views
- Bhel, Sail, Sterling Telecom, TCS, I also Faced
- E-Mail Answers
Answer Posted / fabio corsi
A Fourier analysis may be applied only if a transformer is
linear, which is rarely the case; furthermore, even in a
linear transformer, the dispersed flux has to be accounted,
i.e. flux produced by the primary current which is not
chained with the secondary coil and viceversa.
In a linear transformer without dispersed flux and with zero
resistance of the coils, the waveform of the secondary
voltage is the same as that of the primary voltage, since
u1=N1*d(flux)/dt and u2=N2*d(flux/dt), the flux being the
same, i.e. u1/u2=N1/N2 no matter the waveform (provided it
can be integrated, which is also the case of a square wave).
This is no longer the case with dispersed flux, and/or with
coil resistance, and/or with non-linear core (e.g. iron), in
which case all depends on the involved parameters
(inductance of dispersed flux, hysteresis cycle of the core,
resistance of the coils and consequent time constants w.r.t
the working frequencies).
In a nutshell: "ideal" transformer(never the case actually)
==> square wave; non-ideal transformer ==> non-square
waveforms, the more distorted the less the transformer may
be approximated as ideal, possibly even spikes.
| Is This Answer Correct ? | 30 Yes | 4 No |
Post New Answer View All Answers
Explain what is rated speed?
Shall I use 40A semiconductor Fuses in 32 A SFU ? Frame size is same. What Happen if Fuses burn on SFU?
There is any especial requirement for motor to drive through with VFD?
What is the difference between grid and off- grid system??
What do you understand by external characteristics of a d.c. Generator?
what is the function of gss in the dg set.
details of oil cell size of Breakdown voltage test of tranformer oil details as per Standardswith mushroom electrodes?
what is the relative size of single and three phase?
how to calculate the torque of a motor?
What is the general power consumption rating of CPU CRT type and Flat type, Monitor,Printer, projector, Scanner?
how to calculation increase capacitor,increase power factor for three phase.
What is ignition module of a CAT Gas Genset G-3508 Engine, Alternator SR4B Series. HOw its checked for correct functioning.Is it repiarable or replacable?
Define step response?
Classify drilling machines.
What is lc oscillator?
