ELECTRICAL INSTALLATION OF POWER STATION UNIT Russian patent published in 2005 - IPC

FIELD: electrical and power engineering; power stations using modular power supply circuits.

SUBSTANCE: proposed electrical installation designed to reduce electric field strength on electrical equipment insulation and to limit emergency currents during phase-to-phase shorts in generator and auxiliary circuits, as well as to maintain desired voltage level across auxiliary load in the event of shorted electric circuits of generator, power station switchgear installation, and adjacent supply mains has three-phase generator, two current conductors, and modular transformer. Line leads of modular transformer secondary winding are connected to power-station switchgear installation, neutral leads are connected in star to grounded neutral. Line and neutral leads of generator stator winding and of modular transformer secondary winding are interconnected in phase-for-phase manner by first and second current conductors and form set of three electrically isolated single-phase circuits.

EFFECT: enlarged functional capabilities.

17 cl, 20 dwg