SINGLE-WIRE DISTRIBUTION NETWORK Russian patent published in 2010 - IPC H02J3/04 

FIELD: electricity.

SUBSTANCE: in single-wire distribution network containing power supply, three-wire network connected to it, on branch of three-wire network line there additionally installed is the following: unit for determination of live phase, intermediate transformer having connection of primary windings as per delta circuit, and secondary windings as per open delta circuit in which one of the windings is opposite connected in relation to two other windings; at that, one of outputs of open delta is grounded, and the other one through single-wire line is connected to one of outputs of reducing single-phase transformer the second output of which is grounded; to outputs of single-phase transformer there connected is converter of single-phase voltage to three-phase.

EFFECT: simplifying the network arrangement at following the reliability requirements of electric power supply of users both in normal and in abnormal operating modes of network.

2 dwg