L9: Types of DC Exciter | Alternator | Synchronous Machine Series (Hindi)
ฝัง
- เผยแพร่เมื่อ 30 พ.ค. 2021
- Concept covered: dc excitation of the alternator, working of dc excitation system, brushless dc excitation system, pilot exciter, and main exciter.
This lecture will help you to understand, How we energize the field winding in the case of an alternator? In this lecture; three models of DC excitation have been discussed and compared in detail.
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Love you brother. No one has taught this topic as clear as you did it. ❤
I was searching this type of video... In which all the information about excitation system has been covered.... And finally I found this... No bakavaas only to the point u make me understand
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Very elaborate explanation
Sir your explanation is so good that i am able to explain this topic to any other of my friends. Thank you sir ❤️. Love from bengal
Sir working in industry
1.) AVR is hardly 20 cm *20 cm pcb (not big in size) for 4 MW generator
But as AVR is taking feedback from output voltage of main alternator we can't fix it on rotor
3.) Main exciter has high frequency ( using more number of poles) so that we can get smoother AC for main field without filters
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sir, very nicely explained
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Well explained and much appreciated
बहुत अच्छा से समझ में आया सर । धन्यवाद सर
Best conceptual channel...
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Extraordimary helpfull video sir ,hats off to you sir.
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It's very helpful. Nice.
A-0.1m2 ,100 turn, 1/2 regulations speed, : & 0.01T rotation Aaksh 90 angel .so generate emf?
Sir, please solve.
Thanks
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good exaplain
Superb
Sir , thank you very much Sir very informative video and please tell me function of relays
Relays are the sensing units.. That sense abnormal condition and switch on and off the device.
nice video sir , but I think reason behind making avr out side is that for the input wires coming from the load we can't connect directly to some moving part inside rotor
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Best explanation given by you sir, Is it possible for you to explain this with circuit diagram the thing is that i want to simulate brushless excitation system in a power electronics simulation software.
Sir change of excitation effect on synchronous generator per per video banaaiye.... Isolated transformer and parallel with other transformer
why cant pilot exciter field be directly used to main exciter in dc excitation system?
nice sir
Sir op❤
Sir excitation control panel ke bare me jankari de please
But the main drawback of brushless excitation system is the response time is large as compared to static excitation system.
Maybe there is a confusion in this lecture, from my knowledge split ring use to make DC output, and slip ring is use to make AC output. But in this lecture its reverse, kindly correct me if I am wrong.
Slip rings are of 2 types.... Split and complete.....
Split - for dc output
Complete - for ac
Generally we call complete ring as slipring.... And broken ring as split ring...
These are just conventional names...
Concept is same.... Complete ring or slipring for ac.... And split ring for dc
Sir power electronics bhi pada dijiye
❤❤❤
This type of alternator will have two bridge rectifier and capacity will be 3kv,5kva,7.5kva,10kva and so on
Sir power speed relatiom kaise niklega is par video ka deep analysis,,parrallael operation par bhi
Make video on excitation system of hydro power plant generator
kancha
What is the input to avr? Is it from pilot excitor or from alternator output?
👏👏❤👍
Sir please make video on agra made alternator with turn ratio calculation.in this type of alternator have two winding in one pole shoe,one is the thik wire winding and another one is thin wire winding.i need pole shoe winding turn ratio calculation for constant voltage supply
why dc shunt generator which produces dc is not directly connected to rotor winding of alternator. why separately excited generator is used.
nice explanation. Thank you
If it is posible i will give you some photo of alternator and its field windings
How will be Physical connection three excitor
Good Information. I have a question though. In a brushless excitation system, why cant the pilot exciter be eliminated and output of alternator connected to controlled rectifier which will in turn control the field winding of the main exciter?
As we know that the avr is a very sensitive device we don't want any type of convenice. The ac we get from the armature viz dc through the scr is rotating dc and if we want to give the static dc to the field winding of the avr we still need brush and slip rings. So ultimately we can not remove the picture of slip ring so we don't use the excitation from the alternator. Thank you
Because when we initially start the alternator we need some source of power.
Same is needed after blackout
Pilot excitor is of very smal capacity generally of size of pedestal bearing so it gives us self sufficiency for starting the system
@@dee309sammansaha6AVR don't have field winding Mr it is a small PCB having PID and taking reference from output voltage of main alternator
❤️🙏🙏🙏
Sir pls send me 230volt portable brush less alternater winding diagram.
Sir aap electrical ke fathar hai
S, please tell me about kvar and kva in generator
Kva is the unit of total apparent power [actice + reactive ] developed by generator.
Kvar is the reactive power supplied by generator.
Could you please make a separate video of training in bhel how did you apply in bhel sir?
Actually i have completed my BHEL training in 2013....now rules are change. Kindly check the website portal.
@@techinsight1418 okay sir
Sir ,are training and internship same thing or different?
U explained 3 types of excitation , among them which one is double excited and which one is self excited.....plz confirm Me sir plz....
Double excitation is the dc excitation and self excitation is static one.
Sir synchronous motor ke liye iska use nhi Kate n? Only use for alternater
Mainly used in alternator....
Explained beautifully 🙏
सर एक क्वेश्चन है यदि 50 वर्ड्स फ्रीक्वेंसी वाले जनरेटर से 60 Hz फ्रीक्वेंसी लेनी हो तो क्या बदलाव करना होगा
Frequency number of poles and speed par depend karti h..... Agar poles fix h.... To speed bada k... Frequency badai ja sakti h
@@techinsight1418 lekin sir speed ko badane se frequency ke sath voltage bhi to badega
Voltage ko same rakhne k liye.... Flux kam do....
As E=4.44ft@kckd
@-flux
@@techinsight1418 field winding ke no of turn ko kem karke flux ko kam ker sakte han
sir apna no dijiye
You can contact me on my email id.
techinsight08@gmail.com
Thank you so much sir 💖
thank you sir
Thanks
Thank you so much sir❤❤❤
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