FIELD: electricity.
SUBSTANCE: invention is used in electrical engineering. Matching of four-wire power transmission line, namely, line and neutral wires with electrical load is achieved as a result of compliance with certain conditions involving comparison of actual (which is present in real time at the facility) and reference (determined using the specialised software) load resistance, voltages at the line end and currents supplied to the load. Source data on voltages, currents, and frequencies in the line can be obtained through interface units, or sensors made in the form of voltage and current transformers or in the form of voltage dividers and alternating current shunts, spectrum analysers and frequency meters. As a result of processing of the source the data control signals are generated for adjustment devices, which are represented by constant-voltage regulators of power transformers, without balancers, three-phase devices and single-phase devices that generate current and voltage such as capacitor banks, four-wire (without the fourth wire from the neutral of the power source or load) generalised loads consisting of step-down transformer, which primary and secondary windings are connected as delta/star, filters of higher harmonic components of currents and voltage, the active filter with "floating" condensers designed for the single-wire line.
EFFECT: decrease of losses of electric energy, increase of the line capacity and decrease of distortion of voltage and current curves.
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