... winding no-load-tap-changing power transformer: 1)low loss 2) high reliability 3)CTQC,ISO9001,ISO14001,CE ... •Main Function And Features 220kv 110kv and 66kv low-loss series transformer is our independently developed new generation of transformers ... of domestic and foreign advanced technology, which feature low local discharge, low loss, low noise, high reliability, strange protection against abrupt ...