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Neutral Port (Three-Phase)

Connect phases of three-phase system to electrical conserving port

  • Neutral Port (Three-Phase) block

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The Neutral Port (Three-Phase) block connects the phases of a three-phase system to an electrical conserving port.


If you do not need to connect the neutral port to other blocks, use a Floating Neutral (Three-Phase) block instead. If you want to ground the neutral port, use a Grounded Neutral (Three-Phase) block.



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Expandable composite (a,b, c) three-phase port.

Electrical conserving port associated with the neutral point


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Whether to model composite or expanded three-phase ports.

Composite three-phase ports represent three individual electrical conserving ports with a single block port. You can use composite three-phase ports to build models that correspond to single-line diagrams of three-phase electrical systems.

Expanded three-phase ports represent the individual phases of a three-phase system using three separate electrical conserving ports.

Parasitic conductance to ground. A nonzero value is required for the simulation of some circuit topologies.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced in R2013b