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 SO OUR SYSTEM IS 70V/12,470V GRD WYE AND ON OUR WYEDELTA BANKS WE USE 12KV LIGHTNING ARRESTORS I CLOSE THE 1 TRANSFORMER WITH THE GROUNDED NEUTRAL FIRST,THEN THE OTHER TWO THEN AT THE END OF MY 8' SHOTGUN (AKA GRABALL) REMOVE THE GROUND JUMPER FROM THE FLOATER ON THE HIGH SIDE THEN REMOVEIn our 1/8 Wye secondary, each transformer output must match the services phase to ground voltage, 1 volts Each transformer will have its secondary coils connected in parallel inside the transformer for an output of 1 volts When the transformers are banked Step 1 Determine the loads' VA ratings Step 2 Put onethird of the 3phase load on Phase A, onethird on Phase B, and onethird on Phase C Step 3 Put onehalf of the singlephase, 8V load on Phase A and Phase B, or Phase B and Phase C, or Phase A and Phase C Fig 4 In this example, note that the line and phase power and current are the same, since each line conductor from a wye 1 Wye wye transformer bank 120 208