Allen-Bradley 1407-CGCM-DLR, Руководство пользователя, Страница: 127 / 268

Rockwell Automation Publication 1407-UM002B-EN-P - February 2019 127
CGCM-DLR Unit Startup Chapter 5
Under-frequency (81U)
Follow these steps to test that the Under-frequency function is working properly.
1. Connect a suitable load to the excitation output terminals of the
CGCM-DLR unit.
2. Enable excitation in FCR mode.
3.
Clear the
EngineIdle
tag in the controller tag database.
4. Apply simulated generator voltage signals by using the test voltage source.
5.
Adjust the simulated generator frequency below the under-frequency
setpoint.
6.
Verify that an under-frequency alarm is annunciated following the
expected delay.
Reverse Power (32R)
Follow these steps to test that the Reverse Power function is working properly.
1. Apply simulated generator voltage and current signals by using the test
current and voltage source.
2. Adjust the simulated real power until it exceeds the reverse power setting
in the negative direction.
3. Verify that a generator reverse kW alarm is annunciated following the
expected delay.
Rotating Diode Monitor
Test this function after the generator is operating.
See Diode Monitor set-up procedures on page 137 .