Easy Guide to... Calculation of Neutral Current in a Three Phase Circuit

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Easy Guide to calculate the neutral current in a three phase circuit, using two methods. Determine the neutral current using the graphical method in very easy steps. Calculate the neutral current by using a formula. Ideal for level three or above students on electrical courses.

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Опубликовано:

13 окт 2023

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Комментарии : 14

@jppatnaik2240 20 дней назад

Good explanation...thanks

@sparkyhelp3997 20 дней назад

Glad it was helpful! Please share with like minded people or even like and subscribe.

@beardedsparks2825 9 месяцев назад

I also find that my students prefer the long calculation. Like you, I compare it to the safe isolation procedure. Good video.

@sparkyhelp3997 9 месяцев назад

Thank you, I am glad you find it useful and reassuring. I think we learn something when we see others teach / explain something in the same way, it reassures us we must be doing something correct. Again many thanks. Please Get your students to Like Share & Subscribe .

@okaro6595 6 месяцев назад

With modern calculators (Like Casio fx-991 EX) it is simple to calculate the neutral current. Set the angle to degrees, the calculator to complex, then the output to the angle form. Then you can calculate with the angle symbol (represented here by

@sparkyhelp3997 6 месяцев назад

Hi Yes I have got a Sharp calculator that could do it in the early 90s or you could you 'j' notation for calculation. But for the most of the students I teach the examples shown are more than adequate. I hope you found it useful though. Many Thanks, Please Like, Share & Subscribe

@kevin00861 3 месяца назад

Dear Sir, Thank you for sharing your valuable knowledge, I've a question please, A 3 phase heater connected in star, Will the current be the same on all 3 wires or current is devided by 3, Please help Sir

@sparkyhelp3997 3 месяца назад

Thank you for watching, the current will be equal in in each line. see: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE--2268Ha2B8U.html hope that helps. Please share with like minded or like and subscribe.

@ramzg5402 9 месяцев назад

Thanks a lot Sir

@sparkyhelp3997 9 месяцев назад

No worries, hope it helps. Please Like, Share & Subscribe.

@stefane6598 4 месяца назад

Hi mate, appreciate the video and the help you're providing for people. I'm currently studying to sit my exam and I've come to this question: A three phase 400V four wire distribution board has the following loads connected:. - Red phase 8.8Kw - White phase 4.2 Kw - Blue phase 8.8Kw. Which of the following would be the neutral current? I have converted the KW to A using 1000xKW÷√3xPFx230 and then input that using your calculation: √(22.08² + 10.542² + 22.082² − (22.08 × 10.54) − (22.08 × 22.08) − (10.54 × 22.08) which gives me 11.54A on the neutral.. but the official answer for the question is 20A. Are you able to guide me on where I might be going wrong here?

@sparkyhelp3997 3 месяца назад

I think these are single phase supplies - therefore I=P/V (no power factor mentioned) I1&I3= 38.26A I2=18.26A then as before for 20A Neutral current. Hope that helps. Please like and share.