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UNDERSTANDING POWER QUALITY AND ITS IMPORTANTCE

According to Institute of Electrical and Electronic Engineers (IEEE) standard IEEE 1100, power quality is defined as u201cthe concept of powering and grounding sensitive electronic equipment in a manner suitable for the equipmentu201d.

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UNDERSTANDING POWER QUALITY AND ITS IMPORTANTCE

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  1. UNDERSTANDING POWER QUALITY AND ITS IMPORTANCE www.messungelectricalengineering.com

  2. INTRODUCTION - MESSUNG SYSTEMS PVT LTD • Messung started its journey in 1981. • For nearly four decades, Messung has been at the forefront of industrial automation in India. • Today, our portfolio and prowess extends far beyond this field to Home, Office & Hotel Automation, Building & Infrastructure Automation, Power Distribution, Workplace Ergonomics, Electronic Assembly and Test & Measuring. • www.messungelectricalengineering.com

  3. OUR BUSINESSES www.messungelectricalengineering.com

  4. CONTENTS • What is Power Quality and why you should care • Power Quality Disturbances • Power Quality Monitoring • Janitza Products Overview www.messungelectricalengineering.com

  5. BASIC CONCEPT OF AN ELECTRICITY • An Electricity is a fuel which is required for any Electrical equipment to operate in its intended manner. • Unusual Commodity • Required as a continuous flow. • Cannot be conveniently stored in a quantity. • Electric Power: It is a Rate at which work is done. • P = V X I X COSØ…………………For AC Circuits • P = V X I ………………………….For DC Circuits • Electric Energy: when power is applied for certain duration of time, an energy gets consumed by an equipment. • Every equipment is designed to operate on certain rated conditions, these conditions are mentioned on the Nameplate of an equipment. www.messungelectricalengineering.com

  6. PERFECT AND NON PERFECT GRID NON PERFECT GRID PERFECT GRID AMPLITUDE AMPLITUDE 3 TIME TIME VOLTAGE WAVEFORM CURRENT WAVEFORM www.messungelectricalengineering.com

  7. WHAT IS POWER QUALITY AND WHY YOU SHOULD CARE • Power Quality • "The concept of powering and grounding sensitive equipment in a manner that is suitable to the operation of that equipment." • Electronic equipment & controls are increasing • System control and energy efficiency is a priority • The modern power grid is changing • High dependence on reliable electrical systems • Some Facilities operate 7 days a week, 24 hours a day • Many facilities have high cost of downtime www.messungelectricalengineering.com

  8. CONSEQUENCES • Energy efficiency and Power Quality is increasingly a concern of organizations • Maintaining Power Quality to the level that is required by the application enables safe operation and reduces costly downtime. • Power failure, malfunction, overheating, flickering light, energy waste, etc. www.messungelectricalengineering.com

  9. POWER QUALITY STANDARDS • Characteristics of the voltage (PQ) in public electricity supply networks • Recommended practices and requirements for Harmonics Control in Electrical Power Systems • Electromagnetic compatibility (EMC): Ambient conditions; compatibility level for low frequency, conducted interferences in industrial plants • Testing and measurement techniques – Power Quality measurement methods • EN 50160 • IEEE 519 • IEC/EN 61000-2-4 • IEC/EN 61000-4-30 www.messungelectricalengineering.com

  10. TYPES OF POWER QUALITY PHENOMENON www.messungelectricalengineering.com

  11. HARMONICS • Harmonics are extra frequencies (multiples of fundamental frequency) that when present in an electrical circuit, distort the AC sine wave • Causes: Non-linear electrical loads; Loads with rapidly changing energy consumption • Consequences: Inefficient operation; Excess heat (skin effect); Overheating in neutral conductors; Decreased efficiency and lifespan of equipment; Circuit breakers can trip • Benefit of measuring: Identify the source of harmonics in the electrical system; Increase operational safety and efficiency • Capacitors destroyed due to harmonics www.messungelectricalengineering.com

  12. SAGS AND SWELLS • Voltage Sag is a decrease in rms voltage less than 0.9 pufor a duration less than 1 minute • Voltage Swell is a increase in rms voltage greater than 1.1 pufor a duration less than 1 minute • Causes – Heavy energy loads turning on or off (inside) or network faults (outside) • Consequences – Damage to machines and equipment; Loss of use; Short interruptions can be catastrophic for sensitive applications • Benefit of measuring – Avoid damage and costly downtime www.messungelectricalengineering.com

  13. TRANSIENTS • Transients are high frequency energy packets which superimpose on fundamental frequency wave and severely affect the high impedance circuit • Causes: Switching operation (arcing), lightning strike or malfunction • Consequences: Fast change in voltage, current or load; Can lead to insulation breakdown; Breaker trips and damage to equipment • Benefit of measuring: Avoid costly downtime and damage to equipment www.messungelectricalengineering.com

  14. UNBALANCE • Deviation in voltage or current waveform from perfect sinusoidal, in terms of magnitude or phase shift is called unbalance in a system. • Causes: Asymmetry of loads like single phase loads, phase-to-phase loads or unbalanced three phase loads (e.g. welding equipment) • Consequences: Reduced efficiency; Excess heat and overheating; Device failure and damage to equipment; Reduced lifespan of equipment • Benefit of measuring: Increase lifespan; Avoid overheating; Reduce unwanted downtime www.messungelectricalengineering.com

  15. FLICKER • Voltage variations cause light density changes in lamps, which can result in visual perceptions referred to as flicker • Causes: Load variations (furnaces, welding machines, generators, VFDs, large motors); Wind generators • Consequences: Visible fluctuations in brightness of a lamp; Possible health problems • Benefit of measuring: Find out what equipment within the electrical distribution is causing Flicker www.messungelectricalengineering.com

  16. RESIDUAL CURRENT MONITORING • RCM plays important role in high availability supply systems such as Data Centres and Hospitals • Rapid & direct identification of faults and insulation problems • Avoids fire risks and increases system availability • Extra safety in areas in which no RCDs can be used due to operational reasons • Preventive maintenance = higher productivity & uptime • TN-S system (5-conductor network) – Basic precondition for the safe operation of IT equipment, machinery • and networked systems including residual current monitoring www.messungelectricalengineering.com

  17. POWER QUALITY MONITORING (PQM) • Power Quality Monitoring (PQM) is the process of gathering, analyzing and interpreting raw measurement data into useful information • PQM is often done to improve system-wide power quality performance • Power Quality Monitoring includes: • Power Quality metering, monitoring and onsite measurements • Temporary and Permanentpower quality monitoring to facilitate problem solutions • Documenting and trending system performance to increase system reliability www.messungelectricalengineering.com

  18. BENEFITS OF POWER QUALITY MONITORING (DIN EN 50160) Secure, highly-availability power supply Assured quality of the electrical energy through continuous monitoring and analysis Avoidance of production stoppages Avoidance of overload situations Maximisation ofoperating times Ensuring product quality/stable processes Production-related quality assurance by monitoring the local power quality Optimisation of the maintenance costs www.messungelectricalengineering.com

  19. ONE SYSTEM THREE BENEFITS • Energy Management • ISO 5001 • Reduces energy costs • Improves energy efficiency • Power Quality • EN50160 • Reduces downtime • Optimizes maintenance • Residual Current • Monitoring • Identifies insulation faults faster • Improves supply reliability www.messungelectricalengineering.com

  20. LEVELS OF MONITORING www.messungelectricalengineering.com

  21. PORTFOLIO OF DEVICES • On its capabilities UMG103 -CBM UMG801 MOD-800 UMG96RM UMG96RM-E UMG96PA UMG604 UMG512PRO UMG804 UMG96RM-EL UMG96RM - CBM UMG96PA -MID UMG605 EC-1 EC-2 EC-3 UMG509 UMG804 BCPM UMG96RM-M UMG96RM-P EI-1 ED-1 UMG96PA -MODULES UMG96S2 UMG96RM-PN RCM202 RCM201 www.messungelectricalengineering.com

  22. www.messungelectricalengineering.com

  23. JANITZA UMG 512-PRO • Power Quality Analyzer, Class A according toIEC 61000-4-30 • High Accuracy: Active Energy Class 0.2S Voltage 0.1%, Current 0.1% • Modbus Master / Gateway & Modbus RS485 • Modbus TCP, FTP, SMTP, SNMP, Bacnet, Profibus • All communication protocols are working simultaneously • NTP and PTP time synchronisation • Jasic PLC Programming • Memory 256 MB • Digital I/O, (2 In & 2 Out), Temperature Input • 2 Analogue Inputs for RCM Measurement or Temperature Measurement • Logging of currents and voltages (15 – 440 Hz) • Recording of over 2,000 measurement values www.messungelectricalengineering.com

  24. JANITZA SOFTWARE • GridVis software • Visualisation software for energy management systems and for power quality monitoring. www.messungelectricalengineering.com

  25. JANITZA APPS – APPLICATION SOFTWARE • WITH KNOW-HOW • APPs can be called up via the measurement device homepage • Web-based data display and configuration • No software installation required • Data can also be displayed directly in the browser on mobile devices such as an iPad • Extremely cost-effective and convenient solution • User-defined settings enable a low data volume www.messungelectricalengineering.com

  26. APP Mini EnMs www.messungelectricalengineering.com

  27. THANK YOU Contact us MESSUNG SYSTEMS PVT. LTD. 501, 502 & 503 Lunkad Sky Vista, Viman Nagar, Pune, India - 411 014. +91 20 6649 2800 | info@messung.com www.messungelectricalengineering.com

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