By Uren Thummar Heema Dave Abhishek Joshi Shruti Ghetiya 1 Introduction In conventions on Load Transformer Tap Changer there is production of Arc when changing the tapping of Transformer And in large KVA rating of Transformer it is hard to quench the Arc This major problem can solve in thi ID: 236845
Download Presentation The PPT/PDF document "automatic on load transformer tap change..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
automatic on load transformer tap changer
By.Uren Thummar Heema DaveAbhishek Joshi Shruti Ghetiya
1Slide2
IntroductionIn conventions on Load Transformer Tap Changer there is production of Arc when changing the tapping of Transformer. And in large KVA rating of Transformer it is hard to quench the Arc. This major problem can solve in this thyristor based transformer tap changer.
A single phase on Load Transformer Tap Changer is a basically A.C. Voltage Controller. Which uses anti-parallel loop of Thyristors.
2Slide3
Basic
Block Diagram
Transformer
μ
C
AC
SCR loop 1
SCR loop 2
SCR loop 3
LOAD
AC supply
Firing Pulse
Feedback
Frequency
3
TappingSlide4
AdvantagesDue to the use of thyristors as switches, the changeover is fast.
Operation and changeover is smooth.It avoids sparking while changing over.
It reduces size of OLTC.
4Slide5
THANK YOU
5