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For an Induction Machine with Saturation, a JSON file is required to define the saturation characteristics of the machine. The file must contain the following information:


Parameter (JSON key)

Value typeUnitDescriptionExample

NoLoadStatorCurrent

double[]Arms

One dimensional array of root-mean-square stator current values measured under no-load test conditions.

This array must be the same size as NoLoadLineToLineVoltage, and its values must be arranged in ascending order.

"NoLoadStatorCurrent": [
    5.0,
    10.0,
    17.0
],
NoLoadLineToLineVoltagedouble[]Vrms

One dimensional array of root-mean-square, line-to-line voltage values measured under no-load test conditions.

This array must be the same size as NoLoadStatorCurrent, and its values must be arranged in ascending order.

"NoLoadLineToLineVoltage":  [
    120.0,
    230.0,
    300.0
],

NoLoadFrequency

doubleHertzFrequency used during the no-load test.  This value cannot be zero.
"NoLoadFrequency": 60,

NomicalStatorLeakageInductance

doubleHenry

Nominal value of the stator leakage inductance calculated using the locked-root test.

If this value is zero, the resulting magnetizing inductance is calculated ignoring the voltage drop in the stator leakage inductance.

"NominalStatorLeakageInductance": 0.0008,

NominalStatorResistance

doubleOhm

Nominal value of the stator resistance calculated using the locked-root test.

If this value is zero, the resulting magnetizing inductance is calculated ignoring the voltage drop in the stator resistance.

"NominalStatorResistance": 0.09

...