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Power Quality Mike Thornton National Sales Manager
©ABB Power Technology Front End Sales BA PTPH - LV Capacitors Poor Power Quality: What is it TO YOU? Any event related to the electrical network that makes you lose money… - Power supply failures E.g. Breakers tripping, fuses blowing - Equipment failure, malfunctioning and lifetime reduction E.g. - Equipment overheating (transformers, motors, …) - Damage to sensitive equipment (PCs, UPS-systems, Drives) - Capacitor problems - Electronic communication interference - System losses - Utility regulations G5/4 and penalties - Personnel issues (illness, work efficiency, …)
©ABB Power Technology Front End Sales BA PTPH - LV Capacitors A load which draws a non-sinusoidal (distorted) current, when a pure sinusoidal voltage is applied, is a non-linear load Where do harmonics come from? ‘Sinusoidal’ supply voltage Non-linear load All non-linear loads create harmonics Harmonics = the distorted waveform – the 50Hz/60Hz part in the waveform
©ABB Power Technology Front End Sales BA PTPH - LV Capacitors Non-linear loads are everywhere and in ever increasing number! Industrial loads (mainly 3-wire systems) AC and DC drives, UPS-systems, … => Harmonics between phases, imbalance, sometimes reactive power Commercial loads (mainly 4-wire systems) All office equipment such as computers, fluorescent lighting, photo copiers, fax-machines, … =>Harmonics in neutral and between phases, imbalance, sometimes reactive power are connected between line & neutral generating 3rd harmonic in the neutral conductor Some loads are unbalanced Where to find non-linear loads?
©ABB Power Technology Front End Sales BA PTPH - LV Capacitors The best solution to harmonic problems Active harmonic filters Filtering principle: cancellation of harmonics by equal and opposite harmonic generation by an active filter device LOAD CURRENT ACTIVE FILTER CURRENT CLEAN FEEDER CURRENT Waveforms + = Harmonics
©ABB Power Technology Front End Sales BA PTPH - LV Capacitors Cable car application Problem: - Utility uses ripple control signals at 1050 Hz and 1600 Hz - High frequency components present on the public network
©ABB Power Technology Front End Sales BA PTPH - LV Capacitors Cable car application Initial line current without ABB active filter Solution: ABB active filter
©ABB Power Technology Front End Sales BA PTPH - LV Capacitors Cable car application Current [Arms] Filtered line current with ABB active filter Solution: ABB active filter
©ABB Power Technology Front End Sales BA PTPH - LV Capacitors Neutral protection overload Protection Ith (L): 100A RMS N: 65-80% * Ith MVLV PQFT L1 (R) L2 (Y) L3 (B) N NL Loads: - Fluor. light - PCs -... NL Loads: - Fluor. light - PCs -... NL Loads: - Fluor. light - PCs -...
©ABB Power Technology Front End Sales BA PTPH - LV Capacitors Neutral protection overload H3 in neutral with and without filter Without filter: - I H3 150 A RMS With filter: - I H3 0 A RMS Time [10 ms/div] I [100 A/div] Without filter With filter
©ABB Power Technology Front End Sales BA PTPH - LV Capacitors THE solution to poor power quality ABB premium class Active Filters: PQFKPQFM PQFI
©ABB Power Technology Front End Sales BA PTPH - LV Capacitors Power Quality Solutions Power Factor Correction Passive Harmonic Filters Active Harmonic Filters Flicker – Dynamic Compensation
A global leader in power and automation technologies that enable utility and industry customers to improve their performance while lowering environmental impact
Copyright© Voltimum Experts – not to be reproduced without prior consent of Voltimum UK Voltimum Expert Topic – Power Harmonics.
Voltimum Expert Topic – Power Harmonics. What are Harmonics? They are waveforms with frequencies that are multiples of the fundamental frequency (Typically.
QUALITY AND TECHNOLOGY quality of the. POLYLUX has developed a series of electromagnetic filters for the elimination of harmonics named ‘Compensators’.
POWER QUALITY BACKGROUND & ELEC-SAVER TVSS Power Quality Background Why is it Such a Concern –Many people blame the power utility for degrading power.
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1 Power Quality EKT 451 CHAPTER 8. 2 Introduction Utilities transmit electricity over power lines into home as an alternating current (AC) wave. This.
EMC in Electrical Power Systems Frithiof Jensen Power System Engineer November 12, 2013.
Power Quality Issues. Basic Requirements for Critical Loads Continuous, No Break in Power Voltage Regulation Sine wave Supply Isolation Constant Frequency.
1 POWER QUALITY -- Bhanu Bhushan -- June, How close is the supply voltage waveform to sinusoidal, and how close are the supply voltage and frequency.
© 2003 Eaton Corporation. All rights reserved. Understanding Harmonics Richard Molloy Technology Sales Manager, Power Quality.
Introduction Utilities transmit electricity over power lines into home as an alternating current (AC) wave. This is how power travels through wiring.
TECHNICAL SEMINAR REPORT-2004 Presented by :- AJAY KUMAR DAS (EE ) POWER FACTOR IN ELECTRICAL ENERGY MANAGEMENT Prepared by: Ajay Kumar Das EE
Power Factor and Power Factor Correction. Learning Objectives Define power factor. Define unity, leading and lagging power factors. Define power factor.
© Copyright 2008 ABB. All rights reserved /29/2008 Results-Driven Roadshow Cincinnati, 2008 Common Cures for Harmonics Larry Stanley RSE,Nashville,TN.
The power quality problem is defined as any problem manifested in voltage, current or frequency deviations that results in mal-operation.
© ABB Month DD, YYYY | Slide 1 ASHRAE Rocky Mountain Chapter VFD Fundamentals April 16, 2010 Jeff Miller - ABB 2010.
Siemens Building Technologies Building Technologies Variable Frequency Drives Harmonics Overview.
1 POWER QUALITY -- Bhanu Bhushan -- April, Simple examples around us : Ceiling fan regulators Tube lights Lap-tops & peripherals Domestic inverters.
F. Ferrandis_SP_ALPHA 2_BLOCK 2_Paper 35_Presentation Barcelona May POWER FACTOR CORRECTION WITHIN INDUSTRIAL SITES EXPERIENCES REGARDING.
Lesson 27 Power Factor Correction. Learning Objectives Define power factor correction and unity power factor correction. Calculate the inductor or capacitor.
Power supply. Introduction Power supply convert alternating current to the direct (DC) current mainly convert v AC Three types of power supply:
Introduction In recent years, harmonics are considered as one of the most essential problems in the industrial power distribution networks. The problem.
© 2011 EnerNex. All Rights Reserved. Impact of Non-Linear Loads on Wiring Requirements Jens Schoene December 06, 2011.
1. Overview Introduction Transformer Harmonic Practical Results Conclusions 2.
High Frequency Distortion in Power Grids due to Electronic Equipment Anders Larsson Luleå University of Technology.
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REVIEW OF CFL AND ITS HARMONIC IMPACT ON ELECTRICAL DISTRIBUTION SYSTEM Guide: Mr. Rijo Rajan, prepared by: Merin Lukose Lecturer, S7 EEE EEE department.
Power Factor Correction. What is "Power Factor?" Power factor is a measure of how efficiently, or inefficiently, that electrical power is used by a.
PowerPoint ® Presentation Electrical Distribution Systems Chapter 5 Receptacles Power and Distribu- tion Panels Fuses and Circuit Breakers Temperature.
J.PRAKASH. The term power quality means different things to different people. Power quality is the interaction of electronic equipment within the.
Power Distribution Harmonics Case Study of 285-3F Chiller Plant Michael W. Harmon Principle Engineer Savannah River Nuclear Solutions, LLC Savannah River.
ISA Northern California Section, South Bay October 14, 2003 Craig Chidester
contents Introduction What is power factor Importance of power factor Disadvantages of low power factor Calculation of power factor.
ISSBN, Electronic faculty of Niš, November Use of distortion power for side identification of the harmonic polution Dejan Stevanović, Electronic.
2. Terms and definitions1 # Terms and Definitions # Voltage Sags and Interruptions.
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EE 212 Passive AC Circuits Lecture Notes 2b EE 212.
Clemson University Electric Power Research Association CHANDANA BOMMAREDDY CLEMSON UNIVERSITY DG VOLTAGE CONTROL IN AN ISLANDING MODE OF OPERATION.
Presented by:-SWAGAT KUMAR GURU Regd. No: Roll No:-09EE055 Under the guidance of Ms. Samprati Mohanty (Advisor) 1.
1 Applied Harmonics Control of Harmonics. 2 IEEE Standard Limit harmonic current injections from end users so that harmonic voltage distortion.
BASICS OF BALLAST TECHNOLOGY Created by the U.S. Department of Energy Rebuild America Business Partners and Advanced Transformer.
© P2Power Solutions Pvt. Ltd P2 Power Solutions Active Filter on DG – Newspaper Printing.
Dc regulated power supply SKN. Introduction All electronic circuits need DC power supply either from battery or power pack units. Many electronic equipment.
A common 400 Hz AC Power Supply Distribution System for CMS FEE. Authors C. Rivetta– Fermilab. F. Arteche, F. Szoncso, - CERN.
Chapter 17 Power in AC Circuits. 2 Active Power Instantaneous power to a load is p = v i In an ac circuit –p may be positive sometimes and negative other.
III ALTERNATING CURRENT Electricity is generated, transmitted, and used in the form of three-phase alternating current (AC). The current strength of AC.
© ABB Group 2009 | Slide 1 Dry type transformers Zaragoza Traction application.
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