Method for protecting an electric power system and digital prote

Details Method for protecting an electric power system and digital prote Method for protecting an electric power system and digital prote

1979-12-21

1982-06-01

Wise, Edward J.

Boots, shoes, and leggings

364483, 361 80, H02H 342

Patent

active

043331513

ABSTRACT:
In a method and a system for protecting an electric power system, a signal useful for the protection is produced through operation on a digital data q.sub.m indicative of an instantaneous value at a first time point of an AC electrical quantity and another digital data given by 1/2{axq.sub.m-n -(2-a)xq.sub.m-n+l } where q.sub.m-n and q.sub.m-n+l represent data indicative of instantaneous values of an AC electrical quantity, at a time point in advance of the first time point by an angle of .alpha..degree. (0.ltoreq..alpha..ltoreq.180), and at a time point lagging behind the first time point by an angle of (180-.alpha.).degree., respectively, and a equals to .alpha./90.

REFERENCES:
patent: 3599044 (1971-08-01), Takemura et al.
patent: 3885199 (1975-05-01), Nohara et al.
patent: 3931502 (1976-01-01), Kohlas
patent: 3984737 (1976-10-01), Okamura et al.

Affiliated with

Also associated with

Rating

Method for protecting an electric power system and digital prote does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for protecting an electric power system and digital prote, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for protecting an electric power system and digital prote will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1852556