Abstract
Transformer substation automation, also said that the transformer substation synthesis automation, is following the computer and the large scale integrated circuit technology development appears, internationally developed the experiment system in the late-1970s. To the 90s, computer's performance has been very also formidable · stably, the price drops continually, and along with the computer communication and networking's development, the transformer substation automated system's performance is also satisfies the electrical power system movement the request. The construction and the service experience indicated that the transformer substation automated system may bring saves the electric cable, to reduce the control room area, the enhancement monitoring level, the accumulation performance data and saves aspect and so on manpower remarkable benefits, already became the newly built transformer substation first choice the monitoring pattern. This article through to the transformer substation automation's description, proposed programmable controller PLC and applies in the transformer automation and transformer substation integrated control's realization. Narrated in the second chapter the PLC programmable transformer automation screen's composition and realizes, and narrated the programmable transformer automation choice and the implementation control principle. The third chapter proposed PLC grades the hierarchical control in the transformer substation integrated control structure and the application, but also narrated to passes the design unguardedly. The fourth chapter through to the digitized transformer substation automated system's characteristic and the structure narration, proposed the transformer substation automation recent development. Through PLC in transformer substation transformer automation's realization, lets us more precise implement the control to it, reduced the manual control trouble and has avoided some nonessential loss.
key word: Transformer automation PLC automated screen PLC ladder control