Single-Phase Connection to Three-Phase

For single-phase items that are connected to a three-phase bus, you can select from AN, BN, CN, AB, BC, or CA (where A, B, and C represent the phase, and N represents neutral). EasyPower automatically adjusts the calculations and base kV based on your selection. When you change phases on a phase connection, EasyPower attempts to match the phase on connected items and warns you if there are any issues.

Figure 1: Phase Selection

Note: Your phase descriptions may be different than described here if they have been customized in Tools > Options > Terminology.

The first time you connect single-phase equipment to a three-phase bus, a phase connector symbol is displayed at the connection point. The phase connector appears as two diagonal slash marks below the connection point. .

Figure 2: Phase Connector Symbol

You can double-click on the phase connector symbol to open the phase connection dialog box to select the phase connection.

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