3.1.3.1.1.3 Phase resistance
For a three-phase motor with star winding configuration, the phase resistance represents the resistance
between motor terminals and the motor neutral point. If only phase to phase resistance is available in the
motor datasheet, the value for phase resistance is half of the value phase to phase resistance in the motor
datasheet:
Attention
Phase resistance = Phase to phase resistance
3.1.3.1.1.3.1 Phase resistance of delta winding motors
The software assumes that the motor windings are in a star configuration. For a “delta” winding configuration,
the values which should be entered in the configuration must be converted to the equivalent star winding
configuration.
If the value for phase resistance is available in the motor datasheet, the motor phase resistance for the
equivalent star configuration equals to:
Phase resistance = Phase resistance
equivalent star configuration motor datasheet
3.1.3.1.1.3.2 Phase to phase resistance of delta winding motors
If the value for phase to phase resistance (also designated as terminal to terminal resistance or line to
line resistance) is available in the motor datasheet, the motor phase resistance for the equivalent star
configuration equals to:
Phase resistance = Phase to phase resistance
equivalent star configuration motor datasheet
3.1.3.1.1.4 Phase inductance
For a three-phase motor with a star winding configuration, the phase inductance represents the inductance
between the motor terminals and the motor’s neutral point. If only phase to phase inductance is available in the
motor datasheet, the value for phase inductance is half of the phase to phase inductance value in the motor
datasheet.
Attention
Phase inductance = Phase to phase inductance
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