Load source simulator

Details Load source simulator Load source simulator

1977-08-18

1979-06-19

Demeo, Palmer C.

Electricity: measuring and testing

Testing and calibrating electric meters

323121, G01R 3500, G05F 300

Patent

active

041588088

ABSTRACT:
A high power source load simulator presents itself to a power meter as a conventional electrical load, but in fact is highly portable and dissipates relatively little power and heat. A current source generates a selectively variable current signal which is characterized by a relatively low, constant voltage. A voltage source generates a selectively variable voltage signal which is phase locked with the current signal and is characterized by a relatively low, constant current. The phase angle between the two signals is selectively variable by means of a phase shift network interposed mediate the voltage and current sources. The current and voltage signals are impressed upon the current and voltage sensing inputs of a power monitor via jumper cables. An AGC circuit is also interposed between the voltage and current sources to insure the amplitude independence of their respective signals.

REFERENCES:
patent: 1587841 (1926-06-01), Knopp
patent: 2769928 (1956-11-01), Emker

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