Design and implementation of distribution transformer economic operation control system

RU Wei-kang， CHEN Yu， ZHANG Ping， MA Tao-tao， ZHANG Hong-yan
（Qingpu Power Supply Company， Shanghai Municipal Electric Power Company， Shanghai 201700，China）

Abstract： Aiming at reducing power loss of distribution transformer，based on the research of the existing methods and application status of distribution transformer economic operation，the economic operation of power distribution transformers was further explored. In the principle of economic operation，several different working situations of distribution transformers were discussed. Furthermore，a distribution transformer economic operation control system（EOCS）was designed and realized. Combined with theory and experience of distribution transformer economic operation, the lower power loss of distribution transformers was achieved. Testing result shows power loss can reduce by 50% or above with EOCS.
Key words： distribution transformer economic operation control system（EOCS）；power loss；power system automation；control system