Electrical transmission or interconnection systems – Plural load circuit systems – Selectively connected or controlled load circuits
Patent
1975-11-25
1977-08-16
Schaefer, Robert K.
Electrical transmission or interconnection systems
Plural load circuit systems
Selectively connected or controlled load circuits
324158R, H02J 400
Patent
active
040428303
ABSTRACT:
An improved system and technique for testing power source characteristics simulating dynamic load power demand requirements using pulsating current waves. A plurality of load devices are connected in parallel across the output of a selected power source to be tested. Individual electronic switches are then inserted in series with each of a predetermined number of the loads to allow insertion of the load across the power source at selected times. Using a programmable logic control circuit, the switches are controlled to produce pulsating waves across the power source which simulate the input power demands of actual loads that may be applied to the power source during use. The logic control circuit is constructed to allow programming of plural pulsations per half cycle of an input waveform as well as variable frequency or random frequency control to allow detection of power source deficiencies under a variety of load conditions.
REFERENCES:
patent: 3150308 (1964-09-01), Kantner et al.
patent: 3383589 (1968-05-01), Dugan
patent: 3406341 (1968-10-01), Kupferberger et al.
patent: 3840810 (1974-10-01), Fritts
patent: 3848190 (1974-11-01), Houck et al.
patent: 3849726 (1974-11-01), Justice
Goodman James P.
Kellenbenz Carl W.
Rector Randall C.
Ginsburg Morris
Montanye George A.
Schaefer Robert K.
Schneider Philip
Sciascia R. S.
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