Electronic meter for measuring active and reactive energies in a

Details Electronic meter for measuring active and reactive energies in a Electronic meter for measuring active and reactive energies in a

1983-10-19

1986-06-17

Chin, Gary

Boots, shoes, and leggings

324107, 324142, G01R 2106

Patent

active

045959889

ABSTRACT:
A plurality of single-phase energy sensors each having a first input connected to a current converter and a second input connected to voltage converter supply pulses to a calculating device. The number of pulses over time represents the energy detected by the single-phase sensor. The calculating device is based on a microprocessor and comprises accumulators controlled by the pulses delivered by the energy sensors for supplying the active and reactive power measurements sought. In the case of a four-wire network, it is not necessary to use voltage transformers for the interphase network voltages, and the energy sensors supply pulses which represent the active and reactive energy of each phase.

REFERENCES:
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"Quantum SQ400" Energy Meter, published by Sangamo Company, 1983.
H. Kohler and G. Steinmuller, Solid State High-Precision kWh and kVArh Meter in a 19" Plug-in Case, Siemens Review, vol. 44, No. 11 (1977), pp. 508-513.

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