The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 12, 1982

Filed:

Dec. 03, 1980
Applicant:
Inventors:

Harold M Keener, Ashland, OH (US);

Michael J Sciarini, Dover, OH (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B / ;
U.S. Cl.
CPC ...
307 35 ; 307 39 ;
Abstract

System, method and apparatus for carrying out the shedding of electrical loads on a predetermined priority basis. A sensor network (32) detects a demand load at a power input (10) and develops a signal representative thereof. This signal is introduced to a series of controllers (36-39) along with a signal from an allowable load control circuit (48) which represents a predetermined maximum allowable load value. The controllers respond when the demand load is higher than the allowable load, a priority delay network (108) in each having a time-out interval corresponding with the relative priority basis assigned each load. Simultaneously, with the shedding of a load at the termination of the priority delay, a fictitious load feedback signal (102) is summed (96) with the demand load signal of the sensor. A reset control (90) responds in conjunction with a predetermined review interval timing function (144) to re-evaluate the priorities of shed loads in the event of a drop in demand load.


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