Voltage sags are short duration of voltage reduction caused by system faults, overloads and starting of large motors. Voltage sags are the main causes of trips of various sensitive equipment. In order to understand the voltage-tolerance performance of some process control equipment, this thesis presents test results of some sensitive equipment (such as computers, AC contactors, high intensity discharge lamps and programmable logic controller) and provides their voltage tolerance curves. A number of magnitudes and durations recommended by IEC 61000- 4- 11 are used to perform the tests. With the performance information in hands, power quality requirements of different types of equipment and customer, and area of vulnerability for sensitive loads could be estimated.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0728105-144150 |
| Date | 28 July 2005 |
| Creators | Chen, Zhi-Qiang |
| Contributors | YING-YI HONG, Chih-Wen Liu, Chan-Nan Lu |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0728105-144150 |
| Rights | unrestricted, Copyright information available at source archive |
Page generated in 0.0013 seconds