This paper presents the results from an
American Waterworks Association Research Foundation (AwwaRF) project that evaluated power quality (PQ) and its
effect on ultraviolet (UV) disinfection. The main objective of this research was to determine the prevalence of PQ problems that may contribute
to off-specification by gathering existing data previously compiled by the power industry and assessing
PQ at several water treatment plants (WTPs). In addition, the range of power conditioning equipment was investigated to
determine the appropriate power conditioning equipment based on the severity of the PQ problem. The
specific objectives of the power quality research were as follows: compile PQ data available from power utilities and the Electric Power Research Institute
(EPRI);
monitor PQ and determine the range of PQ problems observed at a wide range of WTPs;
determine the type and cost of power conditioning equipment that is available to address PQ
problems; and,
determine the PQ problems that trigger the need for different levels of power conditioning
equipment. PQ monitoring at water utilities was completed as part of this research for short-term and long-term
durations. The purpose of the short-term monitoring was to determine if there were any PQ problems due
to WTP equipment interference (e.g., engaging a motor); the short-term duration monitoring will
obviously not assess the long-term PQ events. The purpose of the long-term PQ monitoring was to
determine if there were PQ problems from the power grid or within the WTP, and the long-term
monitoring was completed over a minimum of five months. Includes 10 references, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 1.6 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 20 |
| Published : | 06/17/2005 |
