[POLARITY , VOLTAGE RATIO & LOAD TEST ON A SINGLE PHASE TRANSFORMER. COMPLETE SET UP WITH PANEL BOARD WITH BUILT IN VARIABLE SUPPLY & LOADING ARRANGEMENT & 1KVA TRANSFORMER.] POLARITY , VOLTAGE RATIO & LOAD TEST ON A SINGLE PHASE TRANSFORMER. COMPLETE SET UP WITH PANEL BOARD WITH BUILT IN VARIABLE SUPPLY & LOADING ARRANGEMENT & 1KVA TRANSFORMER – GUPTA BRAND ( 100000002 )