GE Grid Solutions D25User's ManualGE Information 994-0081-3.00-21 91Testing Hardware I/O Points, ContinuedAC Voltage andCurrent InputTestTesting AC Analog Inputs: Changes are displayed in WESMAINT.Procedure: TestAC Voltage andCurrent InputTo conduct this test, the code and configuration file must be downloaded tothe D25’s FLASH memory.Note: The actual point descriptions displayed in WESMAINT depend onthe circuit configuration (i.e., line-to-line or line-to-neutral, etc.) andany changes made to the point descriptions in the runningconfiguration file.To verify that the correct AC voltage and current values are displayed inWESMAINT:Step Action1 Navigate to the WESMAINT II+ System Data Menu.2 On the System Data Menu, type 3 — Analog Input Display.PT input test3 Press the down arrow key to scroll to the point named RMSVoltage Phase A Circuit 1. (see Note: above)4 Apply nominal voltage to the first AC voltage input terminationpoints.5 Verify that the measured counts are close to their nominal value.6 Go back to Step 3 and repeat for other points on the AC voltage(PT) input termination.CT input test7 When voltage input tests are complete, press the down arrow keyto scroll to the point named RMS Current Phase A Circuit 18 Apply nominal current to the first AC current input terminationpoints.9 Verify that the measured counts are close to their nominal value.10 Go back to Step 7 and repeat for other points on the AC current(CT) input termination.
