This paper describes a simulation method for reliability assessment of electrical distribution systems. The method has been implemented in the reliability assessment tool RADPOW which now is able to perform both analytical and simulation evaluations. The implemented method is validated by comparing results from application studies made for an electrical distribution system in the Stockholm area...

Reliability investigation has always been one of the most important issues in power systems planning. The outages rate in power system reflects the fact that more attentions should be paid on reliability indices to supply consumers with uninterrupted power. Using reliability indices in economic dispatch problem may lead to the system load demand with high reliability and low probability of powe...

This paper presents the main results of a benchmarking survey for Northern Power System in Vietnam to measure the Power Quality and Reliability in regard to short and long-term interruption. The survey was conducted in 28 provinces and cities divided into four groups to compare: mountainous vs. delta areas and industrial vs. agricultural areas. The evaluation of power quality is based on reliab...

The"dysexecutive syndrome" is composed of a range of cognitive, emotional, and behavioral deficits that are difficult to evaluate using traditional neuropsychological tests. The Multiple Errands Test (MET) was originally developed to systematize the assessment of the more elusive manifestations of the dysexecutive syndrome. The aims of this study were to examining the reliability of the MET and...

BACKGROUND Performance indices provide quantitative measures for the quality of motion, and therefore, assist in analyzing and monitoring patients' progress. Measurement of performance indices requires costly devices, such as motion capture systems. Recent developments of sensors for game controllers, such as Microsoft Kinect, have motivated many researchers to develop affordable systems for pe...

OBJECTIVE This study examines the effective factors in enhancing school manager's job motivation from viewpoint of school mangers, teachers, education department managerial and staff experts in teaching, and also identifies and prioritizes each of these factors and indicators. METHOD For selecting a representative sample and increasing measurement precision, 587 people were selected using cla...

objective: this study examines the effective factors in enhancing school managers' job motivation from viewpoint of school mangers, teachers, education department managerial and staff experts in teaching, and also identifies and prioritizes each of these factors and indicators. method: for selecting a representative sample and increasing measurement precision, 587 people were selected using cla...

A distributor segment has failure rate and repair time which decide mean up time (MUT) and mean down time (MDT). Usually the reliability analysis is based on exponential failure and repair laws. Certain values of repair times are smaller which may be neglected. This is known as repair time omission. Omitted repair time may be fixed. Repair time omitted in turn will affect the basic reliability ...

Traditionally, distribution systems engineering has focused on simplified design criteria guided by individual utility practices and experience. These designs were not optimized but did satisfy specific regulatory goals for system performance. Two developments are invalidating this approach: deregulation of the industry and rapid improvements in technology. Deregulation forces utilities to more...