METHOD TO DETERMINE AVAILABILITY OR UNAVAILABILITY OF VOLTAGE IN OPERATING POWER PLANT Russian patent published in 2014 - IPC G01R19/155 

FIELD: electricity.

SUBSTANCE: method suggests conversion of AC voltage into a signal for wireless transfer, which carries a certain code word and transmitted into a receiving device, in which the received code word is compared to the reference code word, and voltage availability is recorded. At the same time conversion of AC voltage into signals for wireless transfer is carried out automatically and simultaneously on N current-conducting parts of the power plant, N code words are transmitted into the receiving device, in which N received code words are compared with N reference code words, and they fix availability of voltage on each of N current-conducting parts of the power plant. Each current-conducting part of the power plant may be equipped with a stationary transmitting device, which is equipped with a modulator, at the same time the receiving device is equipped with a filter of code words, and also N light diodes and/or a sound emitter, and voltage availability is fixed only when the specified code words match.

EFFECT: higher efficiency and manufacturability of the method.

4 cl, 2 dwg