OMICRON 157
Off-service diagnostic methods
The following figure shows an example of the Motor Current test graphical results.
Figure 17-13: Example of the Motor Current test graphical results
To display the numerical measurement results, click the Table tab in the Measurements area.
Table 17-29: Motor characteristics
Data Description
Inrush current Maximum current drawn by the motor
On a DC motor, the inrush current is usually reached during the startup
phase.
Charging time Time the motor needs to charge the spring
The spring is used to store the energy for a trip or close operation.
Charging current Average charging current of the motor (see Charging current settings in
Table 17-28: "Advanced settings of the Motor Current test" on page 156)
Minimum voltage Minimum motor supply voltage during the charging operation of the motor
Assessment Measurement assessment
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