CIM graphics exchange

Energy management systems employ a variety of schematic and quasi-geographic presentations in their user interfaces. These are sometimes generated automatically, but more often are hand-drawn and require considerable labor to create and maintain. Most of this labor goes into the arrangement, or `layout´ of the power system elements within the overall diagram and when network models are exchanged, as defined in the IEC 61970 part 452 and IEC 61968 part 13 standards, it is desirable to be able to exchange these layouts. This paper will discuss the CIM Graphics Exchange format that extends the standard CIM network model to include this schematic layout information and utilize existing IEC standards (61970-552) for encoding and transmission.