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electrical engineering · three-phase systems · power circuits

Three-Phase Star and Delta Load Comparison

Type Circuit schematicStandard IEEE Std 315 / ANSI Y32.2Engine schematex-circuitUpdated 9/7/2026
Three-Phase Star and Delta Load Comparison
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The scenario

A tutorial schematic used to compare how line and phase voltages and currents relate in star and delta connected three-phase load banks.

What is in this drawing

Read the decisions behind it.

01

Used a grounded three-phase AC source to feed both star and delta resistor banks in parallel

02

Represented star load as three resistors from each line to a common floating star point

03

Added delta resistors between each pair of lines to show line-to-line connection

Reuse for educational diagrams, motor starter wiring comparisons, or any three-phase load connection overview.

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