3-Phase Star-Star Auto Transformer

 

 

 

Description

 

This component models a 3-phase auto transformer bank comprised of 3 single-phase banks.

 

Options are provided so that the user may choose between either a magnetizing branch (linear core), or a current injection routine to model magnetizing characteristics.  If desired, the magnetizing branch can be eliminated altogether, leaving the transformer in 'ideal' mode, where all that remains is a series leakage reactance.

 

External connections to this component are described as follows:

 

 

The following diagram shows a schematic of the connection:

 

 

This component also includes an on-load tap changing capability.

 

 

More:

The Classical Approach

On-Load Tap Changer

 

Input Parameters

Configuration

 

Winding Voltage Ratings

 

Saturation

 

Monitoring of Currents and Flux