1)High short-circuit resisting ability
2) Low on-load loss&partial discharge
3)high overload capacity
4)low temperature rise

220kv power transformer is used in 230kv or 252kv power system

Feature:

  220kv on-load tap changer power transformer is made of high-quality silicon-steel sheets,and laminated by steps,it is advantageous in low loss,low noise ,low voltage partial discharge and high anti short circuit  capacity.the dynamical and thermal stability of this transformer ,of which the coils are winded by high-quality oxygen-free copper wire as well as used pre-compressing brackets processes and interior and exterior structure.the transformer tank used wave form shell.has very nice appearance ,the core is with D shape yoke and 45 angle seaming,the core and oil box are well fixed .

The technical parameter of the power transformer with OLTC high voltage  transformer as follows: