GE 2300 V Manuel D’Utilisation
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Chapter 3 Paramters/Functions
Innovation Series Medium Voltage GP Type - G Drives GEH-6385
Motor service factor
Parameter Motor service factor specifies the ratio of the actual maximum power of
the motor to its nameplate rated power.
the motor to its nameplate rated power.
Units
Motor service factor is a unitless number.
Motor winding cfg
Parameter Motor winding cfg specifies the winding configuration of the motor.
The following values are available for Motor winding cfg:
•
Wye E-LN=Sqrt3*E-PH: Wye configuration.
•
Delta E-LN = E-PH: Delta configuration.
The motor data sheet often lists the motor line voltage and phase voltage in place of
the winding configuration. If the motor data sheet specifies E-LN for the line voltage
and E-PH for the phase voltage, then the winding configuration can be determined
using the following relationships:
the winding configuration. If the motor data sheet specifies E-LN for the line voltage
and E-PH for the phase voltage, then the winding configuration can be determined
using the following relationships:
Wye configuration: E-LN = 3 x E-PH
Delta configuration: E-LN = E-PH
Preflux Forcing
Parameter Preflux Forcing specifies the amount of peak current use to pre-flux the
motor. The dimension is in per unit of motor nameplate amps. It is recommended to
use 1.0 per unit field-forcing; however, in cases where motor rating is higher than
inverter rating, the field-forcing Amps may have to be reduced to avoid inverter
thermal overload during pre-fluxing. In general, using higher field-forcing Amps can
reduce pre-flux duration.
motor. The dimension is in per unit of motor nameplate amps. It is recommended to
use 1.0 per unit field-forcing; however, in cases where motor rating is higher than
inverter rating, the field-forcing Amps may have to be reduced to avoid inverter
thermal overload during pre-fluxing. In general, using higher field-forcing Amps can
reduce pre-flux duration.