METHOD FOR MEASURING ELECTRIC ENERGY IN TWO-CABLE NETWORKS WITH PROTECTION FROM THEFT AND DEVICE FOR REALIZATION OF SAID METHOD Russian patent published in 2006 - IPC G01R11/24 

FIELD: measuring equipment engineering, possible use for preventing theft of electric energy in two-cable electric networks.

SUBSTANCE: for achieving technical effect, modulating code is generated, containing code of consumer, amount of consumed electric energy, type and time of theft, harmonic oscillation is phase-manipulated in accordance to modulating code. Power of complete complex signal is amplified, and then broadcasted. At control station, signal search is performed within given frequency range by readjusting heterodyne frequency. Received signal is transformed by frequency, its phase is doubled, spectrum width of received signal is measured at main and doubled intermediate frequencies, these are then compared to one another and in case of significant difference, fact of detection of complex phase-manipulated signal is established.

EFFECT: increased reliability.

2 cl, 1 dwg