PTC-12 series voltage transformer hand trolley(hereinafter called PT hand trolley)is product designed by our company for power system of rated voltage 1.2kv and below,AV,50hz.It is a product matched with GZS1(KYN28A-12),with property in compliance with GB11022-89"General Technological Conditions of High Pressure switch equipment",GB1207-86"voltage transformer"and the relevant requirements of standard IEC.It has reliable position display function,with high technological performance,simple structure ,easy for installation and debugging etc.Various hand trolleys 1PT-3PT can be manufactured.