Mtengo wa TNSmndandanda magawo atatu mkulu mwatsatanetsatane zodziwikiratu voteji regulator pamodzi ndi TND (SVC) single gawo mkulu precisiorautomatic voteji chowongolera, magawo atatu kusintha payekha kutsimikizira azikhazikika otetezeka voteji pa gawo, The ukubwera powerof maukonde ndi magawo atatu mawaya dongosolo, starlike (Y) kugwirizana, mphamvu linanena bungwe likhoza kupangidwa mu magawo atatu mawaya anayi oithreth mawaya mawaya ampiritsi panopa, mawaya atatu ampere kuchepetsa kuchuluka kwa vollage pagawo lililonse ndi aswitch & kusintha kwa mita yamagetsi.