METHOD FOR ADJUSTING COMPENSATION OF CAPACITIVE GROUNDING CURRENTS IN ELECTRIC NETWORKS

• Main Authors: SOLOV'EV IGOR' VALER'EVICH, PETROV MIKHAIL IVANOVICH, IL'IN VLADIMIR FEDOROVICH
• Format: Patent
• Language: English; Russian
• Published: 27.03.2008
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SYSTEMS FOR STORING ELECTRIC ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

FIELD: electric engineering, possible use for automatic compensation of capacitive grounding currents in 6-35 kV electric networks by influencing inductivity of ground-fault neutralizer. ^ SUBSTANCE: in accordance to the method, to determine parameters of contour of zero series of network, free component of transient process is used, which component contains full information about its frequency and quality of contour, which is extracted from neutral shift voltage, and to generate supporting current impulse in network contour supply is used in high porosity mode, which has low installed capacity. Claimed method ensures required precision of adjustment to any given compensation mode in whole spectrum of adjustment of ground-fault neutralizer inductivity, including the networks with combined grounding of the neutral. The method does not impose limits on the type of used ground-fault neutralizer. ^ EFFECT: increased precision of adjustment and reduced installed capacity of electric equipment. ^ 2 cl, 1 dwg