Power Quality & Utilization Guide
By Hans De Keulenaer / Published on Tue, 2008-04-15 16:31An electronic version of Leonardo ENERGY's flagship publication.
Table of contents:- Introduction
- Introduction to Power Quality
- Electrical power as article of trade
- Reliability of the supply and resilience of the technological proces
- What do we mean by “power quality”?
- Power Quality - the problem of supplier and user
- Power blackouts and voltage dips
- Power blackouts - supplier’s and consumer’s points of view
- Reliability - minimising of causes of power cuts
- Harmonics -origin and responsibility
- Transients - the next PQ problem
- Ensure “good enough” power quality
- Power Quality Self-assessment Guide
- Typical problems
- Computer lockups
- Flickering screens
- Flickering lights
- Overheating of transformers at moderate load
- Induction motors
- Overheating of conductors due to skin effect
- Correct functioning of process control equipment
- Data network congestion
- Problems with power factor correction equipment
- Problems with specific (long) lines or when switching heavy loads
- Overloaded neutrals
- Nuisance tripping of protective devices
- Utility claims resulting from harmonics affecting supply
- Solutions
- Surge protection
- UPS (un-interruptible power supply)
- Back-up generator
- True RMS measurement
- Transformer derating
- Motor derating
- Dedicated circuit
- Multiple cables for harmonic loads
- Complete rewiring of the installation
- Zoning of electrical loads
- Meshed earth
- Passive filters
- Active conditioners
- TN-S rewiring
- Neutral upsizing
- Conclusion
- Typical problems
- Energy Efficiency in Hospitals
- Energy Efficiency in Hotels
- Energy Efficiency in Offices
- Energy Efficiency in Schools
- Energy Efficiency in the Food and Beverages Industry
- Energy Efficiency in the Plastics Industry
- Power Quality for Healthcare Facilities
- Power Quality in Continuous Manufacturing
- Introduction to Power Quality
- Costs
- Distributed Generation & Renewables
- Earthing & EMC
- Energy Efficiency
- Energy management: self assessment
- Compressed Air
- Dielectric Heating
- Energy efficiency in buildings demystified
- Induction Heating
- Industrial Cooling
- Industrial Heat Pumps
- Infrared Heating
- Lighting
- Motors and Variable Speed Drives
- Passive Filters
- Saving energy with high efficiency motors
- 1 Room for improvement
- 2 Energy-efficient motors have been around for a long time
- 3 State regulation? No thanks
- 4 Classification scheme
- 5 Other ways to save
- 6 Measuring techniques
- 7 Environmental payback
- 8 Turning to efficiency: copper rotors
- 9 But a variable-frequency drive saves more energy than a better motor…
- 10 Summary
- Harmonics
- Resilience & Reliability
- Voltage Disturbances
- About LPQI (Leonardo Power Quality Initiative)
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