Electronic energy and power monitoring apparatus

Details Electronic energy and power monitoring apparatus Electronic energy and power monitoring apparatus

G - Physics

01

R

324/59

G01R 21/133 (2006.01) G01R 22/00 (2006.01) H01H 9/20 (2006.01)

Patent

CA 1238364

-32- ELECTRONIC ENERGY AND POWER MONITORING APPARATUS ABSTRACT OF THE DISCLOSURE An assembly for monitoring or metering a plurality of electrical energy and power parameters wherein six current and six voltage stepped down transformers are associted with a drawout cradle in conjunction with a series of functional printed board circuit to achieve a conservation of components and a high degree of compactness in packaging. Accessibility for calibration and similar maintenance procedures is provided at the panel front of the apparatus and simple access to test outputs is provided at the front thereof. A connection plug arrangement is used to provide make before break switching with monitored power paths and for the purpose of providing additional calibration inputs at the forward portion of theassembly without resort to involved housing removal procedures. In one embodi- ment, a summing circuit is used in conjunction with Q and watt multiplier circuits to provide an analog var output in conjunction with pulse characterized watthour and Qhour outputs.

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