Electrical Engineering: Ch 13: 3 Phase Circuit (22 of 53) Balanced Y-Delta Circuit: Ex 1

[@nasseral-horani7472]

You deserve a prize for your sharing of knowledge .thank you so much

[@MichelvanBiezen]

It's our pleasure

[@ayandamemela1278]

Thanks, i did not know that clicking to the link will help me, i got all lectures and the best part they are free , may God bless you.

[@MichelvanBiezen]

Glad it was helpful!

[@p1ayerone802]

This was an amazing video to re-educate myself on Y-delta circuits

[@MichelvanBiezen]

Glad it was helpful.

[@frankkwabenaaboagye]

the ICA; for abc, the c would be +120 added to the 13.43

[@quinnextwilight6443]

its the same

[@juansoto3469]

thank you for this series on 3 phase circuits! helped me so much, you're a beast boss

[@Augustus1003]

at least share his content or simply watch the ad to support him.

[@lapisbrainprint9607]

He accepts Paypal donations as well

[@i-SamyeeArif]

For the line current the angle is -30 so for Ib=the angle should be 90 and for Ic=it should be 120 degree

[@DulceSeeker]

because of what reason is difference between line and phase voltage 30degrees or which phenomena is responsible for that respectively?

[@nellvincervantes3223]

And also the 120° for finding phase angles for phase currents of BC and CA?

[@suhailasaba1051]

Question: Why do you use the symbol of the voltage source as a circle with a plus and minus sign inside it ? Why don't we use the symbol of the AC voltage source sign which is a circle with a sin wave signal inside the circle ?

[@MichelvanBiezen]

We use both. The plus and minus signs are used to indicated the polarity of the voltage source.

[@suhailasaba1051]

I thought that AC voltage source does not have a polarity. It is alternating between positive and negative. Isn't that right ?

[@MichelvanBiezen]

Even with AC voltage there will be a positive and a negative terminal. If you check the outlets in your home with a voltmeter, you will find out that there is a voltage difference and that one side is about 120 V higher than the other side. (if you live in the US).

[@suhailasaba1051]

@@MichelvanBiezen I don't live in the U.S. Do you mean that the plus refers to the phase terminal and the negative refers to the nuetral terminal on the basis that the nuetral terminal is connected to ground in the U.S. ?

[@rkvbuzz9244]

1:35 Why you took +30degrees

[@Unknownthewiu]

@@bluecichlid2813 but why in the example 1 , he took the -30 degree for current but +30 degree for current in example 2

[@leonardopolanco9714]

Wouldnt it be easier to convert the delta impedance into wye impedance by dividing the load impedance by 3, then finding the line current by dividing phase voltage and load impedance in Wye form?

[@fiperr]

I have the same question :(

[@ultralaggerREV1]

It is possible, there’s already a video showing how

[@youssefahmed5480]

I think line voltage =phase voltage with delta load, is that true ?? if that is true I think V(ab)=V(an) with out multiplying by root 3 and add 30 to the angle..

[@ninjahunterx7497]

When we say 100 < 10 degrees. Is the 100, peak voltage or RMS value?

[@MichelvanBiezen]

Sorry, I did not understand your question. The number on the left of the inequality sign is a number and on the right you have degrees.

[@ninjahunterx7497]

@@MichelvanBiezen I meant in the first question, Van = 100 < 10⁰ Sir, does the 100 V given there represent rms value or peak value?

[@MichelvanBiezen]

In the equation V = V max /__(angle) Thus the 100V is the peak value.

[@ninjahunterx7497]

@@MichelvanBiezen Okay, thank you Sir.

[@kevonreid5098]

Isnt the phase and line voltage the same since we are working with a delta connection?

[@MichelvanBiezen]

In a Y- delta connection the phase voltage and the line voltage is indeed the same as shown in the video.

[@HARSHPIPAL]

Sir but phase voltage= line voltage for delta circuit,so why did you multiplied V by √3 in 1st step?

[@nayabzahra1695]

Because Van is phase voltage of Y connected source

[@kimoriii]

hi sir, how do you convert the value 8 + j4 to 8.94 ∠ 26.57° ?

[@MichelvanBiezen]

Sqrt (8^2 + 4^2) = 9.94 Arctan(4/8) = 26.57 degrees

[@1972hattrick]

For the current I_a wouldn't it divide into the two paths? If so is that accounted for when you utilise only the one path at root 3?

[@emirhandogmaz9467]

Hello sir, how to calculate terminal current and voltage in a 6 phase system?

[@sofiasmoshergonzalez]

Great video! really good practice w/ this example

[@MichelvanBiezen]

Thank you! 😃

[@VINInvents]

what if the given is VAB = 220v?

[@MichelvanBiezen]

The equations are still the same, so just substitute 200V for VAB. (one would also expect that the phase angle is given).

[@johnoliverbaingan2894]

sir wouldnt be the answer for the line voltage Ica be 133.42?

[@happinessxelelo1911]

sir where does -30 degrees come from because this is the positive phase?

[@MichelvanBiezen]

In this type of 3-phase connection, there is a 30 degree phase differnce between the line voltage and the phase voltage.

[@prannoychand9672]

Sir cant we use kirchoffs current law to find line current?

[@MichelvanBiezen]

Kirchhoff's laws work on any circuit.

[@ultragokui8699]

Sir, wouldn’t you add 120 to both ICA and IC? I was looking through my notes, and my professor’s notes say to add +120.

[@MichelvanBiezen]

The angle - 226.57 is the same angle as + 103.43

[@fromeltacderan5127]

@@MichelvanBiezen m

[@ronaldrosete4086]

Enlighten me please. Where did you get the √3? Thank you, sir!

[@lapisbrainprint9607]

√3 is derived from the subtraction of vectors that are 120° phase shifted between them. This means two vectors who have 60° phase difference are being added and they are both of the same magnitude, thus the final vector has 30° phase compared to each vector and from Pythagorean theorem the magnitude of the final vector is √(A²+A²+2*A*A*cos60°)=√3*A.

[@iyansaulon]

Hi sir... Im an electrical student.. can you please explain further why about those 30 degree differences.. please

[@MichelvanBiezen]

The best thing to do is to watch the playlist from the beginning. The videos carefully explain the 4 different types of 3-phase circuits and how to work with them.

[@davenandrew7292]

This is gold🙏

[@MichelvanBiezen]

Thank you. Glad you found our videos. 🙂

[@raghavrahul4260]

Bow ties are cool 😁 awesome stuff....this is pure gold.

[@MichelvanBiezen]

Thanks. Glad you found our videos. 🙂

[@MATHBOSS287]

i thought phase voltage is the voltage across each load in other words V_AB , V_BC , V_AC ....now i am confused ... why is phase voltage V_an and V_AB line voltage

[@qchentj]

why +30degree?

[@vijaychaudhary5163]

Thank you sir ❤💙

[@MichelvanBiezen]

Most welcome

[@wedowbank6448]

How get the value of 8.94

[@MichelvanBiezen]

The real part is 8 and the imaginary part is 4 To find the magnitude: sqrt (8^2 + 4^2) = 8.94

[@priyankabhuyan6545]

Great and informative ❤

[@MichelvanBiezen]

Glad you liked it

[@yousefelsayed3383]

sir if i transform the load form delta to Y and got the line current first how can i get the phase current ??

[@HARSHPIPAL]

Line current and phase current are equal in Y connection

[@surendrakverma555]

Excellent . Thanks 🙏🙏🙏🙏🙏

[@MichelvanBiezen]

Most welcome

[@devji_07]

💗 from India

[@MichelvanBiezen]

Welcome to the channel

[@miguelferreiramoutajunior2475]

Thank You Very much.

[@freefiregamer-st5wu]

Sir you are from which country

[@MichelvanBiezen]

Originally I am from Belgium. Now I live in the United States.

[@spaceskygalaxy]

Thank you Sir.

[@MichelvanBiezen]

Glad it was helpful!

[@floraserati2214]

have you uploaded for Balance Y-Y circuit?

[@MichelvanBiezen]

Yes, all the combinations are there. See the playlist: ELECTRICAL ENGINEERING 13 3-PHASE CIRCUITS

[@md.rakibulhaque3629]

Thank you sir

[@MichelvanBiezen]

Glad you liked the video.

[@rendonrebuyas9930]

@@MichelvanBiezen bogo

[@nellvincervantes3223]

Hi sir. Where did 30° phase angle come from?

[@themusicallife3349]

same doubt

[@meghnarao3397]

Why do we multiply it by root 3 .alsoo when do we know we have to multiply it by root 3

[@rkvbuzz9244]

Line voltage is equal to √3 times of phase voltage

[@rkpinata373]

@@rkvbuzz9244 and if you are wondering why you can check it wih kirchoff laws for proof

[@52ifsudarshansalunke89]

Best

[@MichelvanBiezen]

We appreciate the input.

[@NaimasultanaSorabrid--]

Niceeee

[@24mohsinali45]

Oh really🤔🤔

[@rahulsahani9096]

Ooo🤣

[@michaelarchangel1514]

didn't understand nothing

[@MichelvanBiezen]

Did you start at video # 1 of this playlist?

[@عمرصبحيضيف]

can you tell me how many electrical power rise due to increase in number of phases ? or in another word, what is the relation between number of phases and power?

[@MichelvanBiezen]

There is no electrical power rise with the use of multi-phase systems. The advantages are reduced currrent in the neutral, and a balanced load reducing the variation on electrical motors and enabling simplified motor design.