Title :
Affect of voltage sags on electro-magnetic contactor
Author :
Iyoda, Isao ; HIRATA, Masaya ; Shigei, Nobuyuki ; Pounyakhet, Sompathana ; OTA, Kenji ; Ise, Toshifumi
Author_Institution :
Osaka Prefectural Coll. of Technol., Osaka
Abstract :
Sensitivity of electro-magnetic contactors for voltage sag is studied by experimental approach. An experimental circuit with semiconductor fault switch that controls the interval and occurring time (phase angle) of voltage sags is developed. The operating characteristics of the contactor is evaluated in various conditions. Shallow sags may cause faster trip of contactor comparing to deep sags (100% sag) in some cases.
Keywords :
contactors; electromagnetic devices; power supply quality; semiconductor switches; electro-magnetic contactor; semiconductor fault switch; voltage sags; Circuits; Coils; Contacts; Magnetic cores; Magnetic devices; Magnetic flux; Power quality; Switches; Thyristors; Voltage fluctuations; magnetic contactor; voltage sensitivity; votage sag;
Conference_Titel :
Electrical Power Quality and Utilisation, 2007. EPQU 2007. 9th International Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-84-690-9441-9
Electronic_ISBN :
978-84-690-9441-9
DOI :
10.1109/EPQU.2007.4424239
