GE Industrial Solutions Entellisys 4.0 System Test Kit User Manual - Manual (Page 62)

System Test Kit 62
OverCurrent Test
Pre-Defined Overcurrent Test-
Short Time
/Instantaneous/Ground Fault
feature grayed out in Test
Selection in pre-defined tests Protection elements not optioned
and/or enabled for the circuit
breaker selected. Verify that the Protection enabled
for that circuit breaker in system
based on Table 1-4.
Incorrect Switchgear Configuration
used? Check if settings downloaded were
same as in HMI.
Observed trip time reads zero Test cable not connected to either
the test kit or the EntelliGuard
Messenger. Verify the test kit connector is
attached to the desired circuit
breaker.
User-Defined Mode—Trip module
displays as No trip Verify that the fault current entered
is greater than any of the LT/ST/IOC
Pickups.
User-Defined
Overcurrent—% Test Results
button grayed out Test has not been run yet.
Test was aborted.
Pre-Defined Overcurrent
Protection—Test Summary is
grayed out Test has not been run yet.
Test was aborted.
Pre-Define Overcurrent
Protection test failed
unexpectedly Gear is operating in a different
topology than what the test kit
expects Download settings from the HMI
again and repeat
Automatic Trip Time
Curve—Ground Fault curve
feature grayed out in select curve
type Ground fault is not enabled for the
selected circuit breaker.
% Error is displayed as 100 Verify that the System Test Kit cable
is connected to the selected circuit
breaker on which the test is
performed and that observed trip
time is not zero.
% Error is displayed as ___ Verify that the point tested is IOC
trip and that trip time is less than
50/60 ms.
Table 1-20 Troubleshooting
Error Potential Cause Suggested Fix