FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering and can be used to reduce single-phase short circuit current and overvoltage level in electric mains. Grounding method of neutral line includes use of capacitors grounded through reactor, inductance resistance of which is selected by condition of single-phase current compensation. Resistivity of the reactor is selected based on the condition for eliminating ferro-resonance. Additional capacitors are connected to the damaged and lagging phases of the capacitors during closure.
EFFECT: method improves reliability and safety of electric mains.
1 cl, 3 dwg, 1 tbl
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