ELECTRIC ENERGY COST MONITOR

An electric energy cost monitor (3) includes means to determine the amount of energy being used, a keyboard (4) to enter a tariff per unit of energy and a display (2) to display the total cost of the energy which has been used. In use, the monitor (3) is connected to an appliance or plant to be moni...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	STEVE ORSON LESLIE KNIGHT
Format:	Patent
Sprache:	eng
Schlagworte:	MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
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Beschreibung
Zusammenfassung:	An electric energy cost monitor (3) includes means to determine the amount of energy being used, a keyboard (4) to enter a tariff per unit of energy and a display (2) to display the total cost of the energy which has been used. In use, the monitor (3) is connected to an appliance or plant to be monitored (not illustrated in Figure 1) and during the period of operation the monitor measures the voltage and current, and these values together with the entered tariff value and the time are processed by a microprocessor to determine the cost of running the appliance or plant; this is displayed (2) as a monetary value.