Thanks Glavizh & Hamid for your recommendations. The 3 VTs are single phase and connected in wye-earthed / wye earthed configuration. If the primary side & secondary side VT star point earthing is remove as per your recommendation, what are the consequences on the protection & metering fuctions provided by Numerial Protection relay 50/51, 50N/51N, 46, 50BF, 27D, 27R, 27, 59, 59N , 47, 81H/81L , 25 and V, A, kW, kWH.