Identify equipment in a substation (35 - Electricity Distribution)
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- เผยแพร่เมื่อ 9 ส.ค. 2022
- Let's identify all the key parts of a substation by inspection: transformers, voltage regulators, lightning arresters, reconnectors, fuses, etc. We'll look at a few examples.
Full edX course with interspersed practice problems to help you learn:
www.edx.org/learn/electricity...
Aaron Danner is a professor in the Department of Electrical and Computer Engineering at the National University of Singapore.
www.ece.nus.edu.sg/stfpage/el...
Video filmed and edited by Cheryl Lim.
@randomcheryl
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Thank you for your videos, they are very easy to understand and informational!
Both excellent and outstanding video, please keep them coming.
Cheers
Very nice 👍
I think watching disconnector switch arcs has a calming and soothing effect.
Great video. Very clear and well presented. Thank you
In railway relays we use silver contacts to prevent arcing.
Perfect and well detailed explanation, thanks!
Excellent video. Thank you.
I have signed up for prof Danner’s courses on edX, very interesting and informative; contrary to usual college level circuit courses loaded with 1st order and 2nd order ODEs, this course is hugely practical with not only oscilloscope graphs bench experiments but also very detailed data sheet explanations on electrical elements used in practice 😅
Nice lesson Aaron Thanks. I am now subscribed👍
Great and highly informative videos. Thank you Prof.
Superb Video!
Thank you very much for this. Perfect.
Thanks a lot. Very well explained. Not strange coming from a professor.
Thank you so much.
Great explanation! Thanks.
Thanks for detailed presentation
Thank you. Good explanation
great videos very informative❤❤❤
Great video and very educational
Thanks , very informative video
Worth watching, thanks for the video
Thank you for watching and learning. Please spread the word.
Best explanation u can get…, thank U
So glad you found these useful.
Super film!
Great video. The company that I work for builds the polygonal poles for substations and other electrical transmission applications.
Oh that's really cool!
Excellent. Perfect face for radio!
Awesome video!
Glad you enjoyed it
nice video . thank you for it 👍👍
Fantastic.
Great video shows, I am also working at grid substation.
Very informative
Nice video :D
Thank you vey much
Thanks sir
Thanks Sir...
You're most welcome. Hope you found these videos useful.
Thank You
Awesome
Thank you for your support.
Thanks
Tqvm❤
Lightening arrestor. ordinarily open. New information to me. thank you
Yes, they are varistors that will close (and connect to ground) when the voltage across them gets very high from a lightning strike.
Thank you so much for this video. I have a question is recloser and reconnector the same?
yes
when it's load shedding substation can also work or they use battries
Nice presentation and information. Question: Are "Ground Switches" considered "Fuse Switches"? Thanks.
What books you recommend to start studying for substation
thanks for presenting this information and your efforts, but you have a list or series of videos explaining substations.
Thank you so much. Hope you found these useful.
@@adanner you are welcome
Aaron Danner @adanner, I seen on metal unity pole a coil of wire from the very top lighting wire and wondering what this does ? I can send a picture if needed. Thanks
Hi Aaron, how much would be the estimated cost to build or construct a high voltage substation? Let's say in a 230kV line.
Excellent. Not enough likes in this video.
Is this unique to the US or North America? Our substations look different in 🇿🇦
Reconnectors are reclosers...?
Hello Sir. Do you have an email i could contact you from. I have some questions regarding home solar wiring setup. I really look toward your reply.
Question: A substation using a 3 wire 3 phase system, is that a Delta system?
Not necessarily. Delta, Wye, and Zigzag are all 3 wire sys. if not using the ground/neutral.
@@ericstark626 Thank you. The 3 wire system, no ground/neutral from the substation.
Then the only grounding would be DONE are each pole along the distribution system
that had a transformer mounted to it? If so, then NO PARALLEL neutral/ground
back to the substation? thank you
@@tedlahm5740 Dear colleague, the grounding will be "created/invented" by a 'Y' (or Zigzag) somewhere along the distribution. Body safety grounding connection should not be confused with a Neutral connection created by a phase combination where phases vectors of A+B+C=0 (AKA neutral). Loopback of earth fault is different from neutral fault or unbalanced 3 phases case identified by its 3 symmetrical vectorial components per phase I1+I2+I0=Iphase.
@@ericstark626 Sir: How does the Power Company Balance THEIR load when
it is a 3 phase 3 Wire (no neutral) distribution system?
I notice NUMEROUS 3 phase 3 transformer primary DELTA systems connected
to the mentioned distribution system. (The Three L-2 terminals are connected
together, so I know THEY are Delta primary.
@@tedlahm5740 Substation transformers typically are delta on the primary side and wye/star on the secondary side. These transformers significantly reduce the imbalance from the loads on the secondary side passing to the primary side. This is because the load on each secondary phase gets transferred to two of the primary phases. In other words, each primary phase carries about half the load of each of two different secondary phases.
Just last night watched a vid of a guy with half a subststion in his living room doing a giant jacobs ladder, where theres a will😂
What is the difference between "station" and "substation"? Why sub?
A power "station" usually refers to the power plants where power is generated, which also step up the voltages for transmitting the power over longer distances (higher voltage reduces power loss). In order for us to get the 220V/120V that we use at home, the voltage needs to be stepped back down nearby at these power "substations."
@@matthopper1925 So what's the difference between a Switch yard and a substation considering the fact that you sound Anerican.?
@@jamesmhango2619 Substations always have a transformer and circuit breakers, switchyards typically dont have a transformer and are mainly just switches, bus, and transmission dead ends etc. Switchyards just move around the power and substations change the voltages.
It is rather simple. A station is the FIRST transformation (trafo) station after transmission. All the consecutive trafo stations (Distribution) are SUBstations.
Not trying to be a critic, but I think you have something confused. The part you are calling "regulators" look more like OCBs (Oil Cooled Breaker) and might have a regulator on it. I'm no expert, but I work in the field - R&C designer - and the part you identify as a CB (Circuit Breaker) is actually a recloser switch but they do not have bus bar connected to the bushings, looks like cable to me. Good video though and like how you point things out so even the untrained eye can see it.
Thank you for the comments!
If you are going to attempt to correct people you should make sure you know what you are talking about, OCB-Oil Circuit Breaker and they are in fact voltage regulators.
@@adannercorrect the vid 😂
Metcalf snipper attack.
Imagine crash into one of these station😱😱😱.
What is the difference between a reconnecter and a recloser? 🤔🤷♂️🤷♂️🤷♂️🤷♂️🤷♂️ not being critical, I just don’t know enough…I’m enough of an electrical nerd to want to know the difference…
recloser is like an automatic resetting breaker
this sounds like a great video for the people going around destroying substations wtf is this an Op
Sir hope you are doing great
Kindly send me your email Id sir
i bet u want it eh
Great and highly informative videos. Thank you Prof.
Great and highly informative videos. Thank you Prof.