Patent Invention of Intelligent Combination Power Capacitor iti-ngaohiko mana tauhohenga aunoa utu integrated whakaatu pūmana tenenga patent Iti-ngaohiko mohio pahekohia mana tauhohenga parepare tenenga Patent Invention of sub-compensation iti-ngaohiko atamai whakakotahi mana kapeneheihana