Demand controller

Details Demand controller Demand controller

1974-10-18

1976-07-20

Schaefer, Robert K.

Electrical transmission or interconnection systems

Plural load circuit systems

Control of current or power

200 38B, 318472, H02J 300

Patent

active

039708616

ABSTRACT:
A peak load control and power-distributing system for residential or small commercial/industrial use in which some loads are uncontrolled and others are controlled. Current transformers in the main feeder for all loads supply current to a thermal switch to detect when the power demand exceeds a predetermined value. The thermal switch starts a small synchronous motor having gears driving a shaft with cams operating microswitches for the controlled loads. One cam switch enables the motor to operate through a preprogrammed cycle, and to turn off at the end of a cycle whenever the thermal switch indicates the power demand has dropped below the predetermined value.

REFERENCES:
patent: 2878436 (1959-03-01), Mundt
patent: 3291998 (1966-12-01), Wildi
patent: 3578950 (1971-05-01), Moratz

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