http://www.powerstandards.com/index.htm
http://www.powerstandards.com/tutor.htm dużo wiadomości - samouczki i normy na PQ różnych krajów
power quality teaching toy
- A fun and useful simulator for engineers who want to get an intuitive feel for power quality issues. FREE! (but no support)
power quality videos - Introduction to Voltage Dips/Sags: (a one minute video - 20MB)
To save the video, right-click and select “Save as”
brief power quality tutorials for engineers - Sags, dips, and swells: Introduction to the most common disturbance on AC mains
- Transient overvoltages: Introduction to capacitor-switching and high-frequency transients
- Harmonics: Introduction to voltage and current harmonics issues
- Flicker: Introduction to voltage flicker
- Voltage regulation: Introduction to voltage regulation issues
- Other disturbances: Frequency variations, noise bursts, and other less common problems
sag immunity tutorials - Tutorial #1: Common sources of voltage sags / dips
- Tutorial #2: Five ways equipment fails due to voltage sags
- Tutorial #3: Semiconductor industry voltage sag standard: SEMI F47
- Tutorial #4: Quick, inexpensive fixes that increase immunity to voltage sags
electric power standards - IEEE power quality standards
- IEC power quality standards
- Utility power quality standards
- Industry-specific power quality standards
- U.S. military power quality standards
- Other power quality standards - ANSI, CBEMA, CIGRE, country-specific, etc.
Need copies of one of these standards? Please contact us, and we will be glad to help.
( No proszę, bedą szczęśliwi, jak dostarczą kopię normy ! )
(!) Bezpłatny program - symulator z polską wersją językową (!) http://www.powerstandards.com/PQTeachingToyIndex.htm
Urządzenia do monitorowania
http://www.powerstandards.com/PQube.htm z polską wesją językową
http://www.powerstandards.com/pqrelay.htm miniaturowe (szerokość 1 modułu na szynę)
Generator do symulowania zaburzeń - http://www.powerstandards.com/saggen.htm
Create sags/dips, swells, interruptions on 100V - 480V systems, at up to 200 amps continuous
Evaluate the response of industrial equipment to power disturbances
Measure energy consumption at all stages of a process or cycle
Fully compliant with SEMI F47, IEC 61000-4-34, IEC 61000-4-11
Design and test improvements for equipment
Reengineer process flow to optimize energy use
Certify compliance with a range of industry, domestic and international standards
Microprocessor and semiconductor manufacturing
Robotics
Continuous process manufacturing (biotech, automotive, plastics…)
Elevator and other large building controls
(jest też e-sklep)
Update 30.01.2009
http://www.copper.org/applications/electrical/pq/primer.html
Przykład z USA (oprócz innych napięć i czestotliwości niektóre ich “pomysły” trzeba traktować z dystansem, ale problemy i ich źródła wspólne)
What is Power Quality
What is Electrical Grounding
Why are Grounded Systems Preferred?
Sensitive Electronic Equipment
The Switched Mode Power Supply
The Effects Of Non-Linearity On 3-Phase Systems
Techniques That Help:
Harmonics
- Double-Size Neutrals, or Separate Neutrals per Phase
(+foto ! http://www.copper.org/applications/electrical/pq/images/mc_cable.jpg )
(tak, są przewody z grubszym lub zwielokrotnionym “N” , także do falowników i także w Europie !) - Harmonic Filters
- Shielded Isolation Transformers
- K-Rated Transformers
- Harmonic-Rated Circuit Breakers and Panels
General Wiring
- Separation of Sensitive Electronic Loads From Other Equipment
- Limited Number of Outlets per Circuit
- Metal Conduit
- Voltage Drop
- Conductor Material
Grounding Considerations
- Metallic Enclosures
- Lightning
- Lightning Protection Systems
- Grounding of Lightning Systems
To główne hasła wywoławcze - reszta na w/w stronie i odnośnikach na niej.