ELECTRICITY METER Russian patent published in 2001 - IPC

FIELD: electric measurement technology, electron (static) electricity meters. SUBSTANCE: proposed electricity meter includes case 1 housing N ( N is number of phase of network ) current-sensitive elements 10 connected with their outputs to information processing and indication unit 3, N+1 leads-in of voltage circuits 2 for connection of information processing and indication unit to voltage of network. In contrast to prototype case has N or (N+1) through conduits 9 connecting two walls of case and used for passage of i- th wire of load circuit 5 through i-th conduit of case ( i is number of phase ) and for its connection with i-th wire of network 6. Each conduit 9 is capable of magnetic coupling of i-th wire of load circuit 5 to i-th current-sensitive element. Execution of case with through conduits provides for possibility of detection of any attempt of misappropriation of electric energy by way of deliberate change of order of connection of wires of network and load (phasing-in of current and voltage circuit ) with simultaneous simplification of design. EFFECT: simplified design and increased operational reliability of electricity meter. 8 cl, 2 dwg