The Impact of DC Supply on Transformers | Explained with Simulation | TheElectricalGuy 

Enjoyed this, please bring interview questions sir

Very good sir.Thanks

I would highly appreciate Gaurav Ji, sharing valuable things and knowledge.

great Job you make me understand easily.from Africa Zambia

Wonderful video sir 👍🏻 💯 very informative yet easy to understand , thank you sir 😊

Very informative. Thank you Sir.

What an awesome video sir 👍👍 truly 💎 keep making videos

Crystal clear 🔥🙏

🎉🎉🎉 good knowledge sir , may god bless you

Tq... Very helpful...

Really understandable.keep the good work and make videos about electrical generation in ships

thank you

Thank you for your explanations and I also like the software that you use, I am about to try that one, thank you for sharing the name for it. Everycircuit

This video was too good.....

Great job

So we can change switch on and off continuous to get output for long time??

Fantastic explanation sir. Please my question is, at what point in time do we need 1:1 transformer in power system?

Pl send the link for basics of transformer

Sir, what is Concept of leakage flux if RYB OF 3Phase transfomer operate commonly at one phase means no phase difference in RYB

It was mentioned that due to the frequency, f = 0 for DC supply, hence the net impedance of the circuit becomes merely resistance, R. However, since f = 0, isn't that the capacitive reactance that is inversely proportionate to f would become infinite and the resultant impedance, Z would become infinite also? Appreciate if someone could shed some light...

In a HVAC line,since there is only a resistance in the wire and there is no connection of capacitor and inductance,why your considering inductive reactance and capacitance?

i have a question why then are transformers used in amplifiers? if the circuit is in DC how does the transformer amplify the input to the speaker?

Sir is there any possibility that by using "variable DC supply" (i.e. Square Wave) as a source, the "transformer" can operate?

What software are you using to simulate circuits?

What happened actually when we measured trf IR with 5 KV DC insulation resistant testor meggar

👍👍

Sir which software it is

What will happen if we supply pulsating DC in primary of transformer? will bulb starts glowing ? As we are giving change in supply

Sir, First of all impedance is given by Z=R+j(Xl-Xc) not R+Xl+Xc(j denotes phasor and it is very important in AC quantities), and secondly the value of Xl i.e. leakage reactance is also very low, the transformer is designed such that it has less leakage flux so that the Voltage regulation value can be minimized. So, you cannot justify by saying that becuase in DC Xl=0 therefore current will increase, it is not the valid explanation. Explanation: Apply KVL in primary side u will get V=i(t)R+Ldi(t)/dt Where V is the supply voltage And L is the inductance of primary coil. Apply laplace and solve i(t) U will get i(t)=Vexp(-Rt/L) Now find flux, ¤=mmf/reluctance ¤=Ni(t)/R Therefore flux will come out to be decreasing exponential function of time. And eventually after 3 to 4 time constant flux will be equal to zero. Now apply Farady law and find induced emf in secondary. E2=N2 d¤/dt. Since flux is constant and it is equal to zero therefore induced emf E2=0 (short circuit, hence secondary side impedance is zero). Now refer the circuit to primary side u will get the following circuit elements: 1. Voltage source 2. Primary and secondary winding resistance. Rp and Rs 3. E2=0 therefore it will be replaced by short circuit wire. The impedance on secondary side becomes zero(because induced emf is zero) therefore by this logic u can say that current will increase drastically.

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