Recently, the OSFSZ9-900MVA/230Kv OLTC auto-transformer developed and researched by TBEA Shenyang Transformer Co., Ltd. was authorized the First Technical Prize on China Industry and Science, which stands for the highest level for technical innovation in this field. At the same time, the SFP10-430MVA/220kV three phase power transformer developed by the same company at the request of Liaoning Power Plant was authorized the second prize.