BLOCK-COMPLETE TRANSFORMER SUBSTATION Russian patent published in 2023 - IPC H02B7/01 H02B5/06 

FIELD: electrical engineering.

SUBSTANCE: invention relates to transformer substations for distribution electrical networks; it can be used in construction of high-voltage (hereinafter – HV) transformer substations from 110 kV to 330 kV, especially in conditions of a limited building area. A block-complete transformer substation contains a case, electrically interconnected power transformer, HV and low-voltage distribution devices, and protection means. A complete gas-insulated distribution device (hereinafter – HV CGDD) is used as HV distribution device. The transformer substation additionally contains a medium-voltage (hereinafter – MV) distribution device electrically connected to the power transformer, HV and MV diagnostics system, a capacitor installation with automatic regulation on MV side, a combined MV neutral grounding installation. A complete distribution device of two-sided service is used as MV distribution device. The substation case is made in the form of separate block buildings: a building of HV closed distribution device (hereinafter – HV CDD) and a power unit building. HV CDD building contains HV CGDD cells, linear outputs, which are made of cast HV conductor and placed along long sides of the specified building. The power unit building contains MV and lower voltage distribution devices.

EFFECT: creation of an optimal layout of a block-complete transformer substation with the possibility of implementation of different principal electrical circuits in conditions of a limited building area, with simultaneous increase in its reliability, efficiency, and safety during operation.

4 cl, 1 dwg