ABB REL670 User Manual

11.7 LED Test
Main menu/Test/LED test
The Test LEDs menu enables the operator to activate LEDs manually. LEDs that do
not light up are defective. Defective LEDs are also logged in Disturbance records
under Monitoring.
11.8
Line differential test
Main menu/Test/Line differential test/LineDiffLogic
Settings used during test of line differential protection including test mode setting.
With the line differential protection in test mode, it can be tested locally without
causing unwanted operation in the remote end.
Main menu/Test/Line differential test/LDCMX
The scale factor for current sent to remote end IED to be echoed back to local IED
during test is set here.
Section 11 1MRK506276-UUS B
Test the IED
94
Operator's manual

ABB REL670 Specifications

General

Brand	ABB
Model	REL670
Category	Protection Device
Language	English