ZV on load tap changer is composite structure, it combines the functions of diverter switch and tap selector and form into selector switch, both bear the selection of taps and switching of load current, then establish the overall insertion type structure. The tap changer is installed on the transformer tank cover by the tap changer head. The technical function of ZV on load tap changer meets to the requirement of GB10230.1-2007 <Tap Changer Part 1: Performance Requirements and Test Methods>
hese operating instructions apply to the tap changer of all following models: Three phase tap changer: ZVIII350Y,ZVIII500Y ZVIII350D,ZVIII500D
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