Transformer In-line Topology
The in-line topology style for a transformer requires the transformer to be spatially coincident with an end point of every conductor feature that is connected to either of its terminals. Transformer types that use this topology style belong to the E: Transformer - In-line network category.
The in-line transformer does not require a separate junction feature, or tap, to serve as the branching point from the primary conductor. This means that the in-line transformer cannot be connected to an interior point along the length of a conductor line feature. If a user places an in-line type transformer at a location somewhere along the length of a conductor feature, and not at one of the conductor’s two endpoints, then the conductor feature must be split to form two conductor features that meet at the precise location of the transformer feature.
An in-line transformer type is commonly used to model substation transformers, where the GIS representation may resemble a schematic diagram with busbar lines and some accompanying devices like fuses or switches. Step transformers are also usually represented by an in-line transformer type.
Required Configuration
-
The in-line transformer must always be spatially coincident with an endpoint of every conductor, primary or secondary, that is connected to the transformer.
Performance Consideration
-
The requirement to split conductor line features at transformer locations leads to a greater number of conductor features, each with its own complement of contained ConductorInfo units (if using the conductor info records with conductor). This adversely impacts the performance of tracing and subnetwork functions (e.g. Update Subnetwork and Export Subnetwork).
Inline Transformer Diagram: Single Primary/ Single Secondary Conductor Pattern
This pattern is often used for a step transformer or for a substation transformer (in which case both the primary and secondary conductors might be busbar line features).
Inline Transformer Diagram: Single Primary / Multiple Secondary Conductor Pattern
Inline Transformer Diagram: Multiple Primary / Multiple Secondary Pattern
Inline Transformer Multiple Primary/Multiple Secondary Usage Example: Segmented Conductor Branch
