All bus bar schemes in substation|Busbar system in substation|Power system|Typical bus configuration
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- เผยแพร่เมื่อ 10 ก.ค. 2019
- Bus bar arrangements or bus bar scheme is a very important aspect of power system or Electrical substation. There are various types of bus bar arrangements. The bus bar arrangements are generally known as bus bar scheme.
#AllBusBarScheme, #ElectricalTechnologyAndIndustrialPractice, #TypicalBusBarArrangement
In this video all bus bar arrangements or all bus bar schemes used in Electrical substation or power system are described.
This video is also applicable for the following topics.
Bus bar schemes in power systems
Electrical bus bar system
Electrical substation Busbar scheme
busbar system in Electrical substation
Typical bus bar configuration
Typical bus bar arrangements
bus bar schemes
bus bar arrangements
single bus bar scheme
double bus bar scheme
single bus with sectionalizer
one main one transfer bus scheme
one main one reserve cum transfer bus scheme
two main one transfer bus scheme
double bus double breaker scheme
one and a half breaker scheme
all bus bar arrangements
different bus bar schemes - วิทยาศาสตร์และเทคโนโลยี
Aptly explained. Hope this the tutorial will aid students as well as beginners of profession a handy presentation. Thanks a lot.
Best tutorial on protection. Thanks for sharing your valuable knowledge for free and for people like us who cannot afford premium subscription to some online educators. You are one of the best teachers I have learnt from as far as Electrical Engg. is concerned. 👍🙏
Thabks a lot....
This video is an underrated masterpiece.
Superb explanation thank you soo much
Nice Explanation, thank you so much
Best content utube ❤️
Very good & informative video
Hatts off sir,👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍
Very good. Thanks 🙏🙏🙏🙏🙏🙏🙏
Nice explanation. Please do a video on breaker rating calculation
Very nice explanation 👌
អគុណបង😍
Necely described tutorial. Please add voltage levels for eachv scheme.
Excellent explanation sir
Great!
superb!
Great video
Ring mail system is awaited
Very good sir,
Sir just define me and provide me the purpose of bus bar, main bus transfer bus etc
Sir, can you do a video on equipment voltage selection. ie, at what power rating equipment like motor should be LV, MV,HV...
when we should go for LV, MV , HV substations... what is max available transformers, its KA ratings.
Need more clarification on Earth switches used for isolators.
I think protection will be shifted before charging the bus coupler breaker.... Also a scheme come in which when u close last isolator... It will not possible before transfer tht protection
The protection changes as per the isolators are switched.
First of thanks a lot for the video sir.. 🙏🙏
I just wanted to know that, in one n half breaker i-type scheme for every feeder there is one dedicated isolator is mentioned, but in case of feeder fault or maintenance both the Circuit Breaker as well as the isolator will open, which is placed either side of the feeder, then why there is one extra dedicated isolator for the feeder...?
Expecting a reply from your side. Thanks in advance sir. 🙏🙏🙏🙏
So that the feeder can be connected in either bus. It can not be explained over comment. Iwill make vdo
@@electricaltechnologyandind5335 plz sir make one video on it..🙏🙏
Nice
the switch gears with its cubicle consist of its portion of Bus bars. So except for single bus bar scheme & single bus bar scheme with sectionalyzer how do we employ other bus bar schemes, as we need to connect one breakers to more than one bus?
No other bus bar schemes are available either at outdoor i.e. switchyard or in gis(gas insulated switchgear). Normal pcc panel or switchboard has one bus with bus sectionaliser known as bus coupler
Sir can u make a video in switchyard protection scheme
there is nothing as such switchyard Protection. switchyard is basically high voltage feeder and bus bar system. so there Protections shall be just like the feeders like transformer feeder, incomer feeder , line feeder etc. only thing you have to remember if the switchyard voltage is 220kv or higher then bus bar differential protection is must.
and for switchyard having more than one bus, there shall be Protection switching scheme. suppose you are transferring an incomer to transfer bus for the incomer breaker maintenance, then all the incomer Protection shall be switched to bus coupler.
We have single busbbar scheme at switchyard,single busbar with sectionaliser in indoor switchyard,double busbar scheme at alternator site..
Indoor switchyard!!!!!!! Is it GIS or the PASS which is also called hybrid substation.
@@electricaltechnologyandind5335 yes sir gis
Yard is refer to outdoor system. Switchyard will refer outdoor assembly and interconnection of switching equipments. GIS is a very reliable system. But expensive. Which plant you are referring??
@@electricaltechnologyandind5335 sorry sir instead of swithgear I wrote switchyard mistaken
Hi sir, can u please discuss sizing of equipment/element in the substation?
Okay i will make video on that.....
@@electricaltechnologyandind5335 thank you very much.
11:00 Sir, is it allowed for a double bus scheme system to skip the bus coupler
Theoritically, i want to isolate bus 1 for maintenance.
Convention is:
1. Close bus coupler
2. close both bypass isolator
3. Open bus 1 isolators bus side
4. Open bus coupler
Can i do it like this?
1. Close incomer bypass isolator
(Negligible current, bus 2 energize, same potential as bus 1)
2. Close outgoing bypass isolator (Same potential as bus 1)
3. Open bus 1 isolators bus side
If i skip the bus coupler using these step what are the consequence?
No, then all the incoming and outgoing feeders breaker will be bypassed. You need to close the bus coupler first to bring both the buses at same potential. Follow convention an standard operating procedures. Do not improvise in ehv system, that can be fatal. Think multiple time properly.
@@electricaltechnologyandind5335
Sir, Thank you for the safety concern/instruction and speedy reply
I am nowhere near any ehv. I am working on a school project computer program on bus operations. All theoretical. I have allowed isolator to operate on no load condition except if there exist a parallel path of equal potential or negligible current. So far my incorrect steps allowed the bus to operate without consequences and the incoming and outgoing feeders where not bypassed.
I have to find a way to include these restriction.
Sir what program did you use to show us the operation of isolators and breakers in another video?
Again thank you, this video gave me an understanding on how bus scheme operation works.
Remember two thing regarding isolator operation. 1 no current change 2. No voltage change.
Now what you said earlier will let you operate the isolators but that will eleminate all circuit breakers of the feeders. And also the by pass isolators are interlocked with other bypass isolator. So you can close only one by pass isolator at a time.
@@electricaltechnologyandind5335
Sir, Thank you for your insights and suggestions.
What you mean by eliminate all feeder circuit breakers is that the circuit breakers will automatically open?
I realized I was missing the interlock restriction.
By putting an interlocking condition such as if a bus isolator is closed, the other bus isolator can only be operated when the busbar coupler is closed, i avoided comitting my hazardous incorrect steps.
🐸🌎🌏🙄
In double bus scheme your closing the buscoupler that time both bus are charged how your going to take maintenance for bus section 1..?is it compulsory to close the bus coupler..?No
After closing of bus coupler both the buses are charged.. now you switch over each feeder from say bus 2 to bus 2. Now your bus 2 is free. Open the bus coupler. Your bus 1 is de energized
@@electricaltechnologyandind5335 atlast we should open the buscoupler then only bus 1 is de energised thnk for your valuable information,kindly do a vedio on CT switching relay how it will work ..?
in your opinion which scheme is the most optimized one??
One main one reserve cum transfer.
Can you please elaborate?
Hi. Are you sure about your explanation for close the disconnector???? 9:00 to 10:00 You can not close the disconnector just because the voltage of both side is equal.
Possible. Isolator can be closed if there is no change in current or voltage.
but you did not say that in video.
Please check again your description about the priority of disconnector and circuit breaker.
You said before opening the outgoing CB , you could close the disconnectir.
Even you said , first close the coupler CB and after that close the bypass disconnector . It is completely wrong and impossible
😊 🫂 🙏