Showing papers on "Electricity meter published in 1973"
Patent•
05 Dec 1973
TL;DR: In this paper, an electricity meter for an accumulator battery, operative in a forward direction (adding) or in a reverse direction (deducting) corresponding to the discharging and charging phases of the battery, is described.
Abstract: The present invention relates to an electricity meter, especially for an accumulator battery, operative in a forward direction (adding) or in the reverse direction (deducting) corresponding to the discharging and charging phases of the battery. The meter comprises an amplification circuit, an impulse generator having a frequency proportional to the intensity of the discharge or charging current passing through a shunt, and a device for counting and indicating the impulses. The meter further includes threshold devices and logic units permitting the counting of the impulses in a first direction only when the discharge current has an absolute value greater than a first pre-determined threshold value, and permitting the counting of the the impulses in the opposite direction only when the charging current has an absolute value greater than a second pre-determined threshold value.
18 citations
TL;DR: In this paper, a new method was developed for measuring the power on high-voltage lines, which involves determining the power directly on the highvoltage line and transmitting the measured values to the ground potential side by the aid of infrared light pulses.
Abstract: A new method has been developed for measuring the power on high-voltage lines. It involves determining the power directly on the high-voltage line and transmitting the measured values to the ground potential side by the aid of infrared light pulses. Two electromechanical counters at ground side, one for each direction of energy flow, record the transported electrical energy. The measuring error of the device is of the order of 0.2 percent. The small number of active electronic components should result in satisfactory reliability.
10 citations
Patent•
14 Sep 1973
TL;DR: In this article, a stepping motor for use in a remote register, such as is used for the remote reading of electricity meters, is arranged to be advanced by current pulses of known constant polarity.
Abstract: A stepping motor for use in a remote register, such as is used for the remote reading of electricity meters, is arranged to be advanced by current pulses of known constant polarity. The motor includes magnetic biasing means which effect further rotation of the rotor of the stepping motor in the same given direction each time that an input current pulse ends. The motor can therefore be controlled by a simple ON/OFF switch in the electricity meter circuit with a rectifier being provided in the remote register. The magnetic biasing means may consist of one or more cylindrical magnets co-axial with the rotor, or a straight or arcuate bar magnet adjacent to the periphery of the rotor.
3 citations