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
- 51534 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
What is meant by coupling capacitor?
how to work droop ct in generating station
how to electrically make connection to ferroli GN2N?
PLZ SEND ME SOME UNIQUE PROJECT OF ELECTRICAL ENG (B.TECH)
How PADO software increase the efficiency of power plant?
what is the carona effects meaning in HT line transmmission system
as a electrical student why should i hire you?
sir i used 3 hp of motor for spraying pump, other home light and other home items which size of allminium pvc wire ix used
In india, according to trade theory above 5 HP motor reqired star delta starter. But we R connect 11 KV motor with 14MW in Direct to line ( With VCB starter combination) Can U Guess, How it is possible ?????
Proviiding the Dedicated N earth and individual Body Earths ,Finally these all looped /Now my Question :- will it not harm in case of Transformer Fault current flows in Dediacted N Earthing to Looped Body Earthing.
What is force on a conductor in a magnetic field ?
how 650 volts creates? where is use?
Why AC current leads voltage in capacitor and how?
why high speed tripping relay will be used in tripping circuit why not normal relay
How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?
