FIELD: protection of electric power lines. SUBSTANCE: in case of single- phase short-circuit in electric power line having four-ray reactors injured phase is disconnected from sides of line, then injured phase is switched on from both sides after pause automatically, value of coefficient of compensation for interphase capacitance is determined and power of shunting reactors connected to power line is controlled during single-phase automatic reclosing pause. Power is increased if coefficient of compensation for interphase capacitance is less than one and is decreased if this coefficient is greater than one. This is conducted till coefficient of interphase capacitance will equal one. Power of controlled reactors is so controlled during pause of single-phase automatic reclosing that it provides for total compensation for interphase capacitance and minimal level of make-up currents independent of consumed power of shunting reactors under starting conditions. EFFECT: improved efficiency of automatic reclosing of superhigh-voltage power lines. 1 dwg
Authors
Dates
1994-06-15—Published
1991-11-05—Filed