52 CT1 16.67 MVA 89 BT1 52 BT1 89 BS2 89 BT4 22.5 MVA 52 B1 18.67 MVA 89 BS1 52 B4 89 B4 89 B1-1 89 B1-2 89 AT3 89 A-T 89 A 52 A 89 BT2-2 89 B2 52 B2 52 B3 89 B3 89 BS3 89 BS4 89 BT1-2 52 BT2 52 CT1 52 BT1 52 CT2 52 BT2 89 BS1 89 B1-1 89 B1-2 89 B2-1 89 B2-2 15-25 MVA 15-25 MVA 52 CE1 52 CE2 220/15 KV 130/160 MVA 52104 11.5/0.4 kV 12MVA 220/115 kV 100MVA 52G2 52G1 52C