GE Industrial Solutions EntelliPro ES - Manual (Page 213)

EP OS MOTOR MANAGEMENT SY STEM – INSTRUCTION MANUAL
CHAPTER 5: WinESG
5.1 7
Illustration D shows the ground fault function. Three phase currents are added to calculate the RMS value of the
ground fault current. Ground fault is only activated, when the mean value of the three phases currents is within the
range of 0.
5 to 3 times the rated motor current.
Trip current: set from 0.2 to 0.8 times the rated motor current in steps of 0.1
Trip delay: set from 100 to 1000 ms. in steps of 100 ms
Illustration E shows the analog parameters.
Analog value interval: time interval between RMS analog data capture. The data is
displayed in the analog data capture window. Settable from 1s to 60
seconds.
Analog trigger: mode to trigger the RMS analog data capture.
Disable: disables the RMS analog capture
Trip: any fault triggers the RMS analog capture
Warning: any warning triggers the RMS analog capture
Switch ON: start command triggers the RMS analog capture
Switch OFF: stop command triggers the RMS analog capture
Manual:
press start recording in the analog capture
window
Pre-Post trigger:
indicate the number of pre and post trigger data.
Illustration F shows the current threshold. Four current thresholds can be parameterized in the range of 0.2 to 8 times
the rated motor current. These values are compared to the average motor load current.