Microprocessor myths

Reliability of microprocessor-based relay protection devices - myths and reality

Malfunction of relay protection is one of the main causes of the serious failures that periodically occur in power systems all over the world. According to the North American Electric Reliability Council [1] in 74 % cases the reason for heavy failures in power systems was the incorrect actions of relay protection in trying to avoid the failure. Thus the reliability of a power system depends on ...

Reliability of Microprocessor-Based Relay Protection Devices: Myths and Reality

The article examines four basic theses about the ostensibly extremely high reliability of microprocessor-based relay protection (MP) touted by supporters of MP. Through detailed analysis based on many references it is shown that the basis of these theses are widespread myths, and actually MP reliability is lower than the reliability of electromechanical and electronic protective relays on discr...

Microprocessor standards

Now that microprocessors have been with us for three or four years, we can stand back and observe some disadvantages of our free enterprise system, as well as obviously great advantages. The disadvantages tend to fall most heavily on the shoulders of the user, not the manufacturer. The proliferation of microprocessors with incompatible instruction sets, adds unnecessary chores to learning new m...

Microprocessor Systems

Parental life satisfaction based on parenting myths

Parents' beliefs and attitudes about parenting have a significant effect on their life satisfaction. The purpose of this study was to assess the satisfaction with life in parents based on parental myths of Iranian parents. To examine the parental myths, two questionnaires of Seidi's parenting myth with 69 questions and Kansas family life satisfaction with 4 items were used. Inferential statisti...