GE Industrial Solutions Entellisys System Test Kit - Manual (Page 22)

Test Menu 23
1.6.1.2 Test methods
There are three test methods:
•
Pre-Defined Test – Uses pre-defined fault levels for the test selected.
•
User-Defined – Allows the operator to set fault levels for the test selected.
•
Automatic Trip time Curve Test – Automatic Trip Time Curve will automatically compute the
expected trip time curve for the circuit breaker under test depending on Protection elements
enabled, Rating Switch, and CT rating of the circuit breaker connected. This will then
automatically inject low voltage levels at different test points and graph the curve with
expected and observed tested points.
The test kit requires the actual circuit breaker settings to compute the required fault levels and
expected trip time for the selected protection test. The circuit breaker settings are read by the
test kit during the Switchgear Configuration Download process described in
Download
switchgear configuration on page 16 .
1.6.1.3 Pre-Defined Overcurrent Protection Test
Tests the various Overcurrent Protection functions using pre-defined fault levels for ease of use.
Figure 1-12 Pre-Defined Over Current Protection Test