Extended Feeder Manager Overview

Feeder Manager maintains information that allows a utility manager to determine to which circuit a given component of electrical equipment belongs. It maintains information about the distribution circuit from the feeder source to the service point. Information about the feeder is stored in attribute fields on individual electrical features.

Extended Feeder Manager assumes that all electric data resides within the same geometric network.

Single tiered network

Extended Feeder Manager uses the same framework as Feeder Manager and extends the functionality to help a utility manager to identify distinct voltage levels within an electric network. Extended Feeder Manager allows the utility manager to define a set of intermediate feeder sources within electric circuits at points downstream of the ultimate power sources recognized by Feeder Manager.

Multi-tiered network that requires Extended Feeder Manager

Definitions:

Some definitions specific to Extended Feeder Manager include:

Ultimate Source: This is the most upstream source in the electric network. In Feeder Manager this is traditionally called the circuit source. An ultimate source can be identified by matching ParentCircuitSourceID and ObjectID (or GlobalID) values.
SubSource: Subsources are members of a junction feature class that indicates the source of each feeder at a given voltage level. Subsources exist immediately downstream of a transformer and are connected to it by substation bus work. Each subsource corresponds to a distinct feeder at the transformer's secondary voltage level. A transformer may be optionally considered a subsource that is one level higher than its immediate child sources.

SubSource Levels:

Extended Feeder Manager requires that each FeederLevel has no more than one subsource per feeder/circuit. This means that the FeederLevel value cannot be the same on the upstream and downstream sides of a subsource.

Feeder Manager and downstream tracing halts at any subsource that has a level less than or equal to the previous subsource encountered.

Feeder Manager and upstream tracing halts at any subsource that has a level greater than or equal to the previous subsource encountered.

Feeder Level: A feeder level consists of all connected features with the same voltage level. This voltage level is determined by the exiting voltage from a subsource. All connected downstream features with that same voltage are considered a feeder level.