Optoelectronic Electricity Meter for High-Voltage Lines

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.