PROCEDURE FOR PREVENTION OF RESONANCE OCCURENCES IN POWER SYSTEM WITH CAPACITOR-BANK ON SECONDARY SIDE OF TRANSFORMERS Hv(Mv1)/Mv

摘要

Invention merges three procedures that are mutually connected so that those accomplish a unique idea of an inventor, the final goal of which is to prevent resonance in power system with capacitor bank on the secondary side of a transformer VN(SN1)/SN, and in fit in conditions with one or two transformers in parallel performance. Procedure for approximate check of completion of conditions for resonance for harmonic 9 between net and a power condenser QCB=Snt/(81uke) at the secondary of a transformer CN(SN1)/SN, of one or two transformers in a concurrent performance, enables that to be checked by a check-out measuring so as to prove that the total harmonic distortion in the system is less than with a less power bank (by 15 -50%) obtained by switching off one section of capacitor or one concurrent capacitor group in each stage of checked-out bank. Namely, in the net with condensers, the total harmonic distortion increases at least when those condensers with reactance of the system form (fictive) resonant circuit for harmonic 9.