Apparatus for power measuring and calculating Fourier components

Details Apparatus for power measuring and calculating Fourier components Apparatus for power measuring and calculating Fourier components

1986-03-20

1988-02-02

Krass, Errol A.

Boots, shoes, and leggings

340539, 340657, 34087017, 364576, H02J 1300, G06F 1556

Patent

active

047232200

ABSTRACT:
Self contained radio transmitting state estimator modules are mounted on power conductors on both sides of power transformers in electrical substations and on power conductors at various places along electrical transmission lines. They are electrically isolated from ground and all other conductors. These modules are capable of measuring current, voltage, frequency and power factor (or the fourier components thereof) the temperature of the conductor, and the temperature of the ambient air. The modules transmit these parameters to local receivers. The receivers are connected by an appropriate data transmission link, to a power control center which allows determination of the state of the power system. The module measures the Fourier components of voltage and current over a number of cycles and transmits the components to the local receiver.

REFERENCES:
patent: 3931502 (1976-01-01), Kohlas
patent: 4158810 (1979-06-01), Leskovar
patent: 4261038 (1981-04-01), Johns et al.
patent: 4384289 (1983-05-01), Stillwell et al.
patent: 4420752 (1983-12-01), Davis et al.

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