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@Generalpac4 жыл бұрын
Hey you guys, thanks for the feedback. For all our upcoming videos we won't add any music. Unfortunately, KZbin doesn't allow us to remove the music from previously uploaded videos. Thank you for your understanding. -GeneralPAC team
@travisbuildsthis86732 жыл бұрын
I have worked with CTs for a long time but I have never had any training this informative and this intuitive! Thank you for sharing this knowledge. Keep up the great work!
@Generalpac2 жыл бұрын
Glad it was helpful! You can also check our Power Systems Engineering VLOG series in which our instructor Abdur Rehman talked about various power system topics along with detailed explanation. And you can have it with a 30-Days FREE trial: bit.ly/PSEVlog
@Generalpac Жыл бұрын
In Current Transformer course we will start from very basics: This course combines brief introduction to Current Transformer with its main characteristic and applications. You will emerge with the knowledge in principles, working, applications, sizing of CT that empowers you to have strong grip on the fundamentals of Current Transformer. This module consists of three parts, each building upon your knowledge based on previous ones. Get 𝟗𝟎% 𝐎𝐅𝐅 on 𝐂𝐮𝐫𝐫𝐞𝐧𝐭 𝐓𝐫𝐚𝐧𝐬𝐟𝐨𝐫𝐦𝐞𝐫 𝐅𝐮𝐧𝐝𝐚𝐦𝐞𝐧𝐭𝐚𝐥 𝐂𝐨𝐮𝐫𝐬𝐞: bit.ly/Current-Transformer-90OFF
@Generalpac Жыл бұрын
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@Generalpac Жыл бұрын
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@AKK1052 жыл бұрын
Can you recommend any good textbook for designing an electrical distribution system for a high rise commercial building?
@Generalpac2 жыл бұрын
We would recommend the IEEE Gray book as a great place to start - www.protergia.com/descargas/IEEE%20Graybook.pdf Thanks, GeneralPAC by AllumiaX
@ali64fahad7 жыл бұрын
Thanks for this series ct explication is perfect
@SF-fb6lv2 жыл бұрын
It's kind of unfortunate that they refer to TURNS; based on what is shown at around 7:00, to me 'number of turns' should be thought of as number of 'passes' through the 'window', rather than 'loops' or 'turns' around the frame of the window. One 'turn' around the frame of the window is actually considered 'two turns' as shown at 7:56.
@Generalpac2 жыл бұрын
Hello, Yes, you are right some how. But at different sites you will discover different answers of this question. Normally for current transformers, we considered the number of turns in a way it is explained in the video and for normal transformer we considered the number of turns in the way you have pointed out. Thank you, GeneralPAC by AllumiaX
@jianhaowu73683 жыл бұрын
hella perfect video
@Generalpac3 жыл бұрын
Thanks. You might also be interested in our Power System Fundamental courses. Get started with FREE courses here: gpac.link/2GO6m4X.
@NOOS1NOOS7 жыл бұрын
question: if you have a VT of 13800/120 and CT of 800/1 with connected load of no more than 400A. Lets say you decided to install a meter to read your total consumption. how would the meter read the consumption? would it read it as 400/800= 0.5A then 0.5*120*cos()= 60W? and is there any difference if I change my ct to 400/1 since i only have a connected load of no more than 400A, Am I still going to get the same reading as when using 800/1 ct?
@manojkumarhk56965 жыл бұрын
But doesn't this increase the voltage in the secondary circuit compared to primary circuit? In part 1 you told that the voltage is also decreased. My understanding is that, if number of turns is increased the voltage in the circuit will increase. (Mech engineer trying to understand some electrical topics, so please bear if it is a silly doubt)
@pmlnworker3928 жыл бұрын
why the CT star connection should face the protected object? If we make the star point of ct on the othet side then would relay still be able to protect the asset ? What is the real purpose of ct star point ? please elaborate
@SuMiTKuMaR41137 жыл бұрын
best explanation i ever know.. thnks
@arduinosynod15715 жыл бұрын
Thank you. You must be a university proffesor. Greetings from Bosnia
@yasserfarouk28489 жыл бұрын
i have question if we have same source and same load but we have differnt trnasformer ratio like 400/1 and 400/5 so we have same secondry current
@Generalpac9 жыл бұрын
+yasser farouk -- a 400/1 turns ratio is different than 400/5 turns ratio. It's important to know the difference. 400/1 = 400 secondary turns and 1 primary turns. 400/5 = 400 secondary turns and 5 primary turns which is the same thing as 80/1 If you have 600A primary current - a 400/1 turns ratio would yield 1.5A secondary current (600/(400/1)). If you have 600A primary current - 400/5 turns ratio would yield 7.5A secondary current (600/(400/5)) Does that make sense?
@christianacena85308 жыл бұрын
no, not the same lets assume 200 amps load for both ct's. in 400/1 ct the secondary current is 200/400= 0.5 sec amp. since turns ratio is 400. while in 400/5 ct secondary current is 200/80= 2.5 sec amp. since turns ratio is 80.
@pmlnworker3928 жыл бұрын
Please also explain why we use these phase shifts in transformer like dyn11 etc ? what is basic purpose of doing that ? why we use wye and delta configuration of transformers ? what is advantage and disadvantage of both systems ? what is function of neutral in wye transformer and how it works ? why we take care it is grounded or not ? please explain completely thank you
@Generalpac8 жыл бұрын
+rana zohaib, that is loaded question and the answers will come easy if you put time and efforts to understand this subject. There are a lot of benefits for using a delta wye transformer. We can completely isolate ground protective relaying with delta connection. We can suppress harmonics with delta connection. We have good stability of voltage with grounded wye connection. We also assume that our system is a "grounded" system if we ground the neutral. So lots of benefits with both the delta connection and the wye grounded connection. There are many ways that we can make a delta connection and many different ways we can make a wye connection. The Dyn11 simply describes (through phase relationship) one way that we can make/connect a delta wye transformer.
@Generalpac8 жыл бұрын
+rana zohaib, that is loaded question and the answers will come easy if you put time and efforts to understand this subject. There are a lot of benefits for using a delta wye transformer. We can completely isolate ground protective relaying with delta connection. We can suppress harmonics with delta connection. We have good stability of voltage with grounded wye connection. We also assume that our system is a "grounded" system if we ground the neutral. So lots of benefits with both the delta connection and the wye grounded connection. There are many ways that we can make a delta connection and many different ways we can make a wye connection. The Dyn11 simply describes (through phase relationship) one way that we can make/connect a delta wye transformer.
@YASHWANTH256914 жыл бұрын
In the window type current transformer, how does the primary conductor passing through, make it 'one turn'. It doesnt make any turns right!
@Generalpac4 жыл бұрын
Hi Yashwanth, In literal terms, the conductor passing through the window type CT does not have any 'turns'. However, the term 'turns' is extensively used in electrical engineering literature to refer to the number of times the current has to travel through a similarly shaped part of the circuit. See the image in the link below which shows a solenoid, where there are 6 'turns' --or say 'identical portions' of the circuit, so in a circuit where there are no turns, there will only be one 'identical portion' for the current to pass through. circuitdigest.com/sites/default/files/field/image/What-is-Solenoid.png The term 'turns' has been adopted for use in a number of equations, one of the most famous being the transformation ratio of a transformer. To maintain consistency with the existing literature, a single straight conductor is called as having 'one turn'.
@it2basrah8 жыл бұрын
thank you very much.
@deepkhanderia52704 жыл бұрын
I have a question dude ! Why Is is opposite to Vs ?
@sasikala26113 жыл бұрын
Good
@Generalpac3 жыл бұрын
Hey Sasi, You might also be interested in our "Power Systems Engineering Vlog" series. Signup now and get 75% OFF: bit.ly/33dB0MM . This is a limited-time offer. We hope you benefit and enjoy it. :)
@ช่างโอ๋โมดิฟาย-ฮ5ย5 жыл бұрын
Sorry sir.I am a new student.I have a question? ct is ratio =200:1. So I want to know the number of secondaryturn and number primary turn? Please. Thank you.
@milesrowe22633 жыл бұрын
I think that the primary turns would be 200 and sec is 1
@bravindsouza33754 жыл бұрын
Sir by increasing number of turns in secondary, we are increasing voltage in secondary So how measuring instrument will be subjected to high voltage ?
@juanandresvarelafadul86694 жыл бұрын
I have the same question here
@travisbuildsthis86732 жыл бұрын
Keep in mind, the main goal is lower current. A CT is a modified step up transformer but it is in series with the circuit that it’s reading. It has a very low impedance and therefore hardly a voltage drop.
@christianacena85308 жыл бұрын
the diagram showed was not for ct rather its for pt since there was a potential difference between the source.
@Generalpac8 жыл бұрын
+christiandale acena what would a correct CT diagram look like?