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POWER QUALITY BASICS: VOLTAGE NOTCHING | Power Quality In Electrical Systems
http://www.powerqualityworld.com/2012/01/voltage-notching-power-quality-basics.html
Power Quality In Electrical Systems. A compilation of various power quality information, issues, applications, technologies, news and updates. POWER QUALITY BASICS: VOLTAGE NOTCHING. Sunday, January 29, 2012. In addition, voltage notching characterizes an unusual case that falls between harmonics. Voltage Notching is primarily caused by three-phase rectifiers or converters that generate continuous DC current. As mentioned, the voltage notches happen when the current commutates from one phase to anoth...
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CONSTANT VOLTAGE TRANSFORMERS (CVT) OR FERRORESONANT TRANSFORMERS (FERRO) | Power Quality In Electrical Systems
http://www.powerqualityworld.com/2011/04/constant-voltage-ferroresonant.html
Power Quality In Electrical Systems. A compilation of various power quality information, issues, applications, technologies, news and updates. CONSTANT VOLTAGE TRANSFORMERS (CVT) OR FERRORESONANT TRANSFORMERS (FERRO). Friday, April 8, 2011. Constant Voltage Transformer (CVT) or Ferroresonant Transformer (Ferro). Results in an output voltage change of only 4%. Constant Voltage Transformers (CVT) or Ferroresonant Transformers. Furthermore, constant voltage. CVT or Ferro Schematic Diagram. If properly sized...
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ANSI C84.1 ELECTRIC POWER SYSTEMS AND EQUIPMENT - VOLTAGE RANGES | Power Quality In Electrical Systems
http://www.powerqualityworld.com/2011/04/ansi-c84-1-voltage-ratings-60-hertz.html
Power Quality In Electrical Systems. A compilation of various power quality information, issues, applications, technologies, news and updates. ANSI C84.1 ELECTRIC POWER SYSTEMS AND EQUIPMENT - VOLTAGE RANGES. Saturday, April 2, 2011. Establishes the nominal voltage ratings and operating tolerances for 60-Hz electric power systems above 100 volts up to a maximum system voltage of 1200 kV (steady-state voltage levels only). However, i. ANSI C84.1 Voltage Ranges. Please take note that transient voltages (i&...
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POWER QUALITY BASICS: VOLTAGE SWELL | Power Quality In Electrical Systems
http://www.powerqualityworld.com/2011/04/voltage-swell-power-quality-basics.html
Power Quality In Electrical Systems. A compilation of various power quality information, issues, applications, technologies, news and updates. POWER QUALITY BASICS: VOLTAGE SWELL. Tuesday, April 19, 2011. Is defined by IEEE 1159 as the increase in the RMS voltage level to 110% - 180% of nominal, at the power frequency for durations of ½ cycle to one (1) minute. It. Is classified as a short duration voltage variation phenomena, which is one of the general categories of power quality problems. As an exampl...
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FERRORESONANCE PREVENTION TUTORIALS | Power Quality In Electrical Systems
http://www.powerqualityworld.com/2012/04/ferroresonance-prevention-tutorials.html
Power Quality In Electrical Systems. A compilation of various power quality information, issues, applications, technologies, news and updates. Monday, April 30, 2012. Deal with strategies that electric utilities and end-users could implement to minimize occurrence of the power quality phenomenon. These practices are based from the fact that ferroresonance usually happens with lightly loaded three-phase transformer, having one or two phases open either intentionally or accidentally. Common strateg...Resis...
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Power Quality In Electrical Systems: June 2012
http://www.powerqualityworld.com/2012_06_01_archive.html
Power Quality In Electrical Systems. A compilation of various power quality information, issues, applications, technologies, news and updates. EFFECTS OF HARMONICS ON CAPACITORS. Sunday, June 17, 2012. The Effects of Harmonics on Capacitors. Include additional heating - and in severe cases overloading, increased dielectric or voltage stress, and unwanted losses. Also, the combination of harmonics. And capacitors in a system could lead to a more severe power quality. CLICK HERE TO READ MORE. ANSI C84....
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Power Quality In Electrical Systems: February 2012
http://www.powerqualityworld.com/2012_02_01_archive.html
Power Quality In Electrical Systems. A compilation of various power quality information, issues, applications, technologies, news and updates. POWER QUALITY BASICS: FERRORESONANCE. Wednesday, February 29, 2012. Which can mitigate power quality problems like voltage sags. CLICK HERE TO READ MORE. Subscribe to: Posts (Atom). View my complete profile. STATCOM (STATIC SYNCHRONOUS COMPENSATOR). CBEMA CURVE – THE POWER ACCEPTABILITY CURVE FOR COMPUTER BUSINESS EQUIPMENT. CBEMA Curve is one of the most frequent...
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STATCOM (STATIC SYNCHRONOUS COMPENSATOR) | Power Quality In Electrical Systems
http://www.powerqualityworld.com/2011/09/statcom-static-synchronous-compensator.html
Power Quality In Electrical Systems. A compilation of various power quality information, issues, applications, technologies, news and updates. STATCOM (STATIC SYNCHRONOUS COMPENSATOR). Monday, September 26, 2011. Or Static Synchronous Compensator. But with some advantages. The term Static Synchronous Compensator is derived from its capabilities and operating principle, which are similar to those of rotating synchronous compensators (i.e. generators), but with relatively faster operation. 1 Square-wave In...
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STATIC SYNCHRONOUS SERIES COMPENSATOR (SSSC) | Power Quality In Electrical Systems
http://www.powerqualityworld.com/2012/05/sssc-static-synchronous-series.html
Power Quality In Electrical Systems. A compilation of various power quality information, issues, applications, technologies, news and updates. STATIC SYNCHRONOUS SERIES COMPENSATOR (SSSC). Thursday, May 31, 2012. Static Synchronous Series Compensator (SSSC). Is a modern power quality. The Static Synchronous Series Compensator has three basic components:. Voltage Source Converter (VSC) – main component. Transformer – couples the SSSC to the transmission line. On the other hand, if control is limited to re...
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