Distribution transformer 11kV ,15kV,22kV,33kV up to 25000kVA
1.1 IEC 60076 power transformer
1.2 GB1094.3,5-2003 power transformer ower transformer
1.3 GB/T6457-1999 3-phase oil immersed power transformer technical parameters and requirement.
220kv on-load-tap-changing 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.