Automatic load control system and method for a power distributio

Details Automatic load control system and method for a power distributio Automatic load control system and method for a power distributio

1977-10-03

1979-05-01

Truhe, J. V.

Electrical transmission or interconnection systems

Superimposed unlike currents

Different frequencies or phase

307140, 340310A, H02J 300

Patent

active

041526058

ABSTRACT:
A system and method for regulating power demand in a power distribution system by means of time-of-day metering or remote control of energy-consuming appliances. The system provides means for producing control signals which can be reliably sent to numerous customers over a power distribution system from a central location. Means located at each electric power meter or controlled appliance monitors the signal on the power line to detect an incoming control signal. When a signal reaches the customer, a switch is operated either changing the metering rate or controlling the electricity supply to an appliance. Steps in the preferred method include modulating the line frequency by means of at least one signal frequency. The incoming power signal is continuously monitored at the customer load or meter and any control signals detected serve to actuate a load control switch or the like.

REFERENCES:
patent: 706575 (1902-08-01), Lunt
patent: 2206702 (1940-07-01), La Pierre
patent: 2587213 (1952-02-01), Polin
patent: 3003122 (1961-10-01), Gerhard
patent: 3283316 (1966-11-01), Beardmore et al.
patent: 3460121 (1969-08-01), Wattenburg
patent: 3903508 (1975-09-01), Taketa
patent: 4027171 (1977-05-01), Browder et al.

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