How to design a 3 phase electrical compressor / motor circuit 43m long!

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Episode 3 of the design series moves things along again. This time into 3 phase and to include power factor!
Richard leads the show again working from the example built by Craig!
I am a passenger on these and enjoy learning something new every single week! Massive thanks to the guys for taking the time and putting this together.
Huge thanks to everyone for the kind feedback and recent bump in numbers on the audio versions!
Website to access the download etc is apprentice121.co.uk/electrica...

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12 июл 2023

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Комментарии : 18

@brianhewitt8618 11 месяцев назад

Excellent, 3ph EV would be interesting 👍

@addaplaster4976 11 месяцев назад

Thank you so much this was great. We really enjoyed it. Love this series

@chris..L-d4y 11 месяцев назад

I always thought that the rating factor of cc=0.9 has to always be added to any cable buried in the ground. Keep up the good work, guys.

@craigbuist4636 11 месяцев назад

It definitely is a factor that is discussed in appendix 4 for being applied. We will come back and go through this in more depth in the future, just slowly introducing people and building up. I would equally like to explore ERA and soil resistivity as we get further down the line

@A121podcast 11 месяцев назад

@craigbuist4636 you guys have to being me up to speed before we get to complex to soon 🤭. Loving taking part and all the comments on the series.

@Al-gg4jt 11 месяцев назад

Going through power factor and why we use square root of three to work out current share across the three phases would be helpful if that was explained in more detail please? Awesome pod though, cheers

@mb-electricalservices 11 месяцев назад

This is great for us older sparks too who are a little rusty shall we say! :)

@A121podcast 11 месяцев назад

Same for me. It's sparked the grey matter somewhat! It's a gentle journey introducing more derating factors and discussion points as we develop lol. Need to find a way to share the slide better on the recording for example. Once we are covering every aspect need to be able to see it lol

@mb-electricalservices 11 месяцев назад

@@A121podcast 100% agree with you. I found the video extremely helpful and interesting so much so that I have decided to concentrate my efforts on circuit design to better myself. Might even take a stab at the 2396 in the next 12 months. I invested in ElectricalOM too and got a nice discount via my ECA membership so that's on the agenda too..... Love your content guys.

@inneseaton313 11 месяцев назад

This series is just brilliant - thank you so much for making this free to watch. Will you be covering something around harmonics? After watching some of the recent CA material on power quality analysis, it made me realise how poor the guidance is in 7671 - and non existent when it comes to single phase!

@A121podcast 11 месяцев назад

Thanks and yes we will be doing towards the end lol. Lots of calcs and correction factors to build in then I think it makes sense with Harmonics to get Kevin from Chauvin back on to help explain! For me more than anyone else lol

@inneseaton313 11 месяцев назад

@@A121podcast Great - I look forward to it!

@ibgtfabtec 8 месяцев назад

Good presentation, nominal voltage ?? 230 oops

@mb-electricalservices 11 месяцев назад

Why install the CPC as a separate conductor? Why not just select an SWA with an additional core to act as the CPC? Is this choice purely based on cost?

@craigbuist4636 11 месяцев назад

Quite often a seperate CPC is specified on some of the tenders that I work on. It also allows you to reduce the CPC size which may save the client money

@mb-electricalservices 11 месяцев назад

@@craigbuist4636 Fair enough, that makes sense I guess. Having put a bit more thought into it, I suppose if the client is unfortunate enough to suffer a catastrophic fault which is sufficient enough to destroy or damage the CPC, at least you wouldn't be required to replace the entire SWA containing the CPC!

@A121podcast 11 месяцев назад

It's just an example to discuss rather and present improvements upon 🤭

@mb-electricalservices 11 месяцев назад

@@A121podcast Hehehe. I feel that distribution circuits are maybe a topic well worthy of their own video/discussion? Do you agree?