A new compensation strategy for an AC contactor under voltage-sag events

Hung, Chih-Yu; Chi, Chieh-Tsung

doi:10.1109/ramech.2010.5513215

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“…Since they have low energy consumption, no conduction direction limitation and are cheapness [4,5]. However, their unpredictable trips under voltage sag result in the interruption of the production process, causing serious economic loss to users [6][7][8][9]. To promote the research of sag mitigation measures and reduce economic losses, it is necessary to reveal its response mechanism to multi-dimensional sag characteristics.…”

Section: Introductionmentioning

confidence: 99%

Analytical model of AC contactors for studying response mechanism to multi‐dimensional voltage sag characteristics and its novel applications

Xiao

Wang

2019

IET Generation, Transmission & Distribution

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Section: Introductionmentioning

confidence: 99%

Analytical model of AC contactors for studying response mechanism to multi‐dimensional voltage sag characteristics and its novel applications

Xiao

Wang

2019

IET Generation, Transmission & Distribution

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A New Technique to Improve AC Coil Contactor Switching in Presence of Voltage Sags

Akolkar¹

2013

JEEE

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Total complaints related to voltage sags are about 80 % of all the complaints due to power quality transients. AC Contactors are designed to disconnect the load or circuit they control when the main power supply is intentionally interrupted. The sensitivity of AC coil contactors to the applied voltage is thus a potentially weak link in industrial processes. This paper shows the test results obtained from extensive laboratory testing carried out on AC coil contactors to voltage sags with variation in value of point on wave angle of voltage sags. The testing was carried out considering various sag magnitudes, durations and point on wave initiation angles of supply voltage waveform. Voltage tolerance curves for AC contactor have been plotted which gives an idea about equipment malfunction for different sag events. This kind of typical equipment sensitivity data might be useful for the future sag assessment methods. Line to line transformer is also suggested for improving AC coil contactor behavior during voltage sags

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A new compensation strategy for an AC contactor under voltage-sag events

Cited by 2 publications

References 11 publications

Analytical model of AC contactors for studying response mechanism to multi‐dimensional voltage sag characteristics and its novel applications

Analytical model of AC contactors for studying response mechanism to multi‐dimensional voltage sag characteristics and its novel applications

A New Technique to Improve AC Coil Contactor Switching in Presence of Voltage Sags

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