Harmonics and Harmonics limit
Harmonics stand for the unwanted AC signals or disturbances in the AC supply. In technically speaking, the fundamental AC component (e.g. 200 Hz) in the main supply comprises of 2,3,4.. times that of fundamental frequency signals (400Hz, 600Hz, 800 Hz...). The fundamental AC component is normally a pure sinusoidal signal. The Harmonic component's magnitude will be of less in amplitude compared with fundamental.
Fundamental and harmonic components (courtesy: online source)
Source of harmonics:
When the non linear loads such as UPS, chargers, Computers etc. are connected with the main supply, harmonics are generated.
Effects of harmonics:
Due to harmonics the power losses in the line increase, poor power factor etc.
Harmonic limits:
Voltage harmonics i.e. THD level should be < 5%
for current harmonics the THD level should be <8%
Otherwise the Electricity board may impart penalty for the amount of harmonics generated.
9 comments:
nice blogs for final yeaR STUDENTS
vlsi projects 2017
ieee vlsi projects
Final Year Projects are a very important aspect of Engineering as well as Diploma education. ASK2 projects giving innovative final year projects for ECE, EEE, EIE and related departmentsFinal Year Projects in Chennai, Final Year Engineering Projects in Chennai , Final Year Project centre in Chennai, Final Year Engineering Projects centre in Chennai, Final Year Engineering Projects in Chennai, Final Year Project centre in Chennai
Hii,
Very nice blog,you given wonderful information about Engineering projects,It is very useful to engineering students,thank you for sharing this good article.
Electrical Engineering Course
Hii,
Very nice blog,thank you for sharing ..
Electrical Engineering Jobs In Hyderabad
Something Interesting. It improves my knowledge. Keep Sharing. You can explore the Engineers Garage website where you can find good stuff of electronics and electrical projects. Final year engineering students will get a idea about project.
Wow! Excellent post. Thanks for sharing with us. We are providing the best image manipulation service and other services...
Once you have decided on in which you are going to do your athletics betting, you need to have to determine how you are heading to location your wager. There are several distinct techniques for you to wager your chosen sum of funds, but 1st
asikqq
dewaqq
sumoqq
interqq
pionpoker
bandar ceme
hobiqq
paito warna terlengkap
http://199.30.55.59/dewaqq78/
datahk
This Article is Really Fantastic! I Already Looked through a huge amount of site anyway the thing was not palatable. You have formed the blog in the real demands so the visitors can see with no issue. An obligation of appreciation is all together For Sharing The Valuable Post. We Provide Photoshop Clipping Path Service Nad Many Other Photoshop Image Editing Services In Best Quality.
I cannot thank Mr Benjamin service enough and letting people know how grateful I am for all the assistance that you and your team staff have provided and I look forward to recommending friends and family should they need financial advice or assistance @ 1,9% Rate for Business Loan .Via Contact : . lfdsloans@outlook.com. WhatsApp...+ 19893943740. Keep up the great work.
Thanks, Busarakham.
Post a Comment