- General Electric Computer Accessories User Manual

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• Chapter 4 Wizards Innovation Series Medium Voltage GP Type - G Drives GEH-6385
Motor Nameplate
and Equivalent
Circuit Data
Flux Curve
Data
Drive Commissioning: Motor Data Sheet -
Equivalent Circuit Data
The motor data sheet is available from the motor supplier. It is a useful source of
motor operating parameters that may not be listed on the motor nameplate. The
motor data sheet is also a good way to verify motor nameplate data.
The Motor Data Sheet should contain hot resistance values for Stator(R1), Rotor
(R2), and the 'Hot' temperature at which they were measured.
The Motor Data Sheet may contain cold resistance values for Stator (R1) and Rotor
(R2).
The Motor Data Sheet should contain values for Stator(X1) and Rotor(X2) Leakage
Reactance and Magnetizing (Xm) and Starting Reactance (Xst).
Leave unknown entries blank (not zero). Entries can be returned to blank (<No
Value>) by highlighting the entered value and pressing delete.
Below is an example of a motor data sheet:
Motor Nameplate
and Equivalent
Circuit Data
Flux Curve
Data
On this motor data sheet, the synchronous speed of the motor is listed as RPM. The
rated full load speed of the motor is listed as FLS and is the speed that should be
entered for Motor rated rpm.
Motor winding cfg: On some motor data sheets, the winding will simply be listed as
wye or delta. In the example above, the line-neutral voltage (E-LN) is the same as
the line-line voltage (E-PH). Hence the motor has a delta winding configuration. For
a wye winding configuration the line-line voltage will be less than the line-neutral
voltage by E-PH = E-LN ÷ √3.