ReShape Schematic Generator


PRISM DMS and OMS support both a dynamic geographic based view of the network diagram and a schematic based view for switching, tagging etc. Both types of views can be drawn using DASmap and linked to the network model for dynamic topology colorization. However, the PRISM system also supports an automatically generated schematic view of a selected feeder using an optional application called ReShape.  The advantage of a schematic network diagram versus a geospatial diagram is that the schematic view shows at a glance the entire feeder in its simplest form.  Geographic based views are often best used for coordinating with field crews and correlating trouble calls and problems with customer locations, but are of limited value when it comes to switching.  The problem arises from the fact that due to the large geographical area covered by most feeders, a zoom level high enough to visualize the entire extent of the feeder is too high to truly “observe” the control devices in order to select the device to perform switching.  As a result, dispatchers generally prefer to perform switching from schematic one-line diagrams. 


ReShape, the PRISM real-time schematic generator, will dynamically generate a switching one-line diagram of the current real-time feeder topology by clicking on the feeder in the geographic view. The schematic view does not display non-switching devices such as load transformers.  However fuses, manual switches, reclosers, breakers, etc. are shown because each of these can alter the network topology. 


The dynamically generated schematic view shows the current feeder connectivity from the source to the end of the feeder in a single window.  The schematic view is simplified for easy comprehension by removing nonessential elements such as geographic information and distribution load transformers.  The switching devices shown are equally spaced for optimum clarity. 



Figure: Comparison of two Feeders (purple and yellow) and an Outage (white) in Schematic View (l) vs Geographic view (r).


The right geographic view in the figure shows only a portion of the feeder, whereas the diagram on the left shows the entire feeder in one-line form – yet the left diagram is easier to comprehend.  Since the schematic diagram is a fully functional SCADA display, tagging, and device remote control is completely supported.  The schematic diagram also shows topology, colorization and any open tie switches to alternate feeders. 



Device search functionality between a window showing a schematic view and a window showing a geographic view (or vice versa) is easily accomplished by cutting (double clicking) the device in one window and pasting (center click) in the other window.

More Information

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