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. 

Inline Transformer Diagram (Balanced Model)

​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