Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Post: #1

The amount and complexity of household electrical equipment has increased tremendously over the last few years. Electronic ballast lighting, computer monitors and air conditioners are welcome additions to our homes but come with additional burdens. One of these is on the electricity grid, as these appliances generate more signal harmonics. This change in the end-consumer profile is a disadvantage for energy distributors which bill energy based only on active power. With the application of non-linear loads to power lines the active energy no longer represents the total energy delivered. As a response to improve billing, the measurement of reactive energy is gaining interest. For example, Italy.s leading energy distributor has decided to install more than 20 million household energy meters with active and reactive power measurements. This growing interest in measuring reactive energy leads to the question: What method should an energy meter designer implement to accurately measure the reactive energy? Although today.s electronic digital signal processing (DSP) enables reactive energy measurements to be closer to the theoretical value, there is no consensus in the field of energy metering on the methods of measurement. This article aims to explain and compare the three main methods in use, namely the Power Triangle, the Time Delay and Low-pass Filter. SYSTEM REQUIREMENTS Electromechanical meters have set a precedent in reactive energy billing. Although they are bandwidth limited and cannot take into account harmonics of the line frequency, they are supported by the international standard for alternating current static var-hour meters for reactive energy (IEC-1268). The standard defines reactive energy measurements at the fundamental line frequency, which implies that it is not mandatory to include harmonics. It also specifies additional testing conditions to check the robustness of the measurements against the third harmonic, the dc offset in the current input, and the line frequency variation.

Presented By Etienne Moulin, Applications
Engineer, Energy
Measurement Group, Analog
Devices Inc.
Post: #2
read for report

Important Note..!

If you are not satisfied with above reply ,..Please


So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
Popular Searches: ppt measuring frequency with 8085, active power reactive powerusing, how to design temperature measuring device, distance measuring camera, pdf how to stop power meters, reactive suspension vs non reactive suspension suspension, reactive power control in power system,

Quick Reply
Type your reply to this message here.

Image Verification
Image Verification
(case insensitive)
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Adaptive piezoelectric energy harvesting circuit for wireless remote power supply electronics seminars 3 3,157 18-02-2016 02:18 PM
Last Post: seminar report asees
  Biomass Fuelled Power Plant computer science crazy 6 4,329 08-05-2015 02:21 PM
Last Post: seminar report asees
  seminar on power grid Guest 2 1,054 24-08-2014 12:42 AM
Last Post: Guest
  artificial intelligence techniques in power systems full report computer science technology 3 4,537 08-08-2014 10:39 PM
Last Post: seminar report asees
  thermoelectric power generation full report project report tiger 8 6,791 07-03-2014 07:43 PM
Last Post: Guest
  Voltage Stability Improvement using Static Var Compensator in Power Systems project report tiger 5 5,611 12-07-2013 11:29 AM
Last Post: computer topic
  GEOTHERMAL POWER GENERATING TECHNOLOGY project topics 11 8,002 25-06-2013 10:00 AM
Last Post: computer topic
  Magnetohydrodynamic power generation technology (MHD ) computer science crazy 13 20,830 20-06-2013 05:51 PM
Last Post: Guest
  renewable energy resources ppt computer science technology 12 24,200 25-05-2013 11:21 AM
Last Post: computer topic
  SEMINAR TOPIC ON POWER PLANT ENGINEERING computer girl 1 2,869 22-04-2013 08:38 AM
Last Post: [email protected]