Latest Contributions by JohnAlsup

Is this high voltage or medium voltage?   In Distribution, a circuit breaker does not typically connect to two downstream circuits.  But then, the term Circuit has a lot of different meanings to different people.  Could you provide a diagram or screenshot? ... View more

Our Electric Foundation model includes structure assets for modeling Duct Banks from Manhole to Manhole or vault.  You can trace from location to location, and limit paths to available ducts, which could be by specific sizes, or percent free.   ... View more

Reducing the number of feature classes in the UN was done for performance reasons.  The UN uses a pair of attributes to define what the asset is, Asset Group and Asset Type.  Asset Group in the Electric model follows ANSI C84 standard for equipment (HV, MV, LV).  These are Asset Groups.  If you look at the editor map, you will notice that some fields are aliased differently by asset group (which is a subtype). Also attribute domains are assigned at the Asset Group (subtype) level and the HV uses a different domain for Nominal Voltage (which is line to line voltage) that MV or LV. The key is too look at the attributes using the editor map. ... View more

Then I would export to Asset Package and import that packing using the Apply Asset Package.  In my opinion, that is the safest, fastest path. ... View more

Personally I would use the Apply Asset Package tool for creating and loading the initial data in to your Target UN.  The tool is RDBMS agnostic. I would also start with one of the esri foundation UN models. Once your UN database is setup and loaded, the foundation documentation walks you through the process of enabling, versioning, publishing, etc.   The foundation solutions are found on the Esri Solutions site solutions.esri.com ... View more

Here is a link or the IEC ElectroTechnical vocabulary site: IEC 60050 - International Electrotechnical Vocabulary - Welcome (electropedia.org) Here is a link to NEMA's standards for Electric Power Standards (nema.org) As for symbology, or symbology is loosely based on IEC Standards.  The  IEC Standards are not all that great for cartography, so we took some liberties.  ... View more

That is expected behaviour.   ... View more

Hi Clayton.  I would be glad to discuss how Generation and Transmission can be modeled using the Electric UN model.  My email address is [email protected] if you would like to setup a call. ... View more

Then you would just make the HV to MV transformer a subnetwork controller in the Distribution tier, call it Sub1 or some other name, and keep you the other subnetwork controllers at the circuit breakers in the distribution tier. ... View more

In this case you would not need the subtransmission tier.  Subtranmission is just like transmission, just a lower voltage, so subtransmission runs between stations, just like transmission.  I think you are trying to build a tier inside the substation for the equipment between the transformer and the breakers, is that correct? ... View more

Adding new Asset Groups or Asset Types means adding rules, so it would be more complicated than just renaming an existing asset type.  Perhaps you can send me you source schema.  If you wish you can email it to me at [email protected] ... View more