A set consist of the following 03 types ( a ) Bushing DIN 1/ 630A M20 PART CODE HSTN310501R0001 ( b ) Bushing DIN 3/ 630A M20 PART CODE HSTN310506R0001 and ( c ) Bushing DIN 3/ 1250A M30 PART CODE HSTN310507R0001 terminal insulator of 1216KVA MAKE ABB/ HITACHI main transformer.