ABB Relion 670 series - Document Symbols and Conventions

10.2 Activating the test mode............................................................................................................ 83
10.3 Preparing the connection to the test equipment........................................................................83
10.4 Connecting the test equipment to the IED.................................................................................84
10.5 Releasing the function to be tested........................................................................................... 85
10.6 Verifying analog primary and secondary measurement............................................................ 86
10.7 Testing the protection functionality............................................................................................ 87
10.8 Forcing of binary input/output signals for testing.......................................................................87
10.8.1 Forcing concept.......................................................................................................................87
10.8.2 How to enable forcing..............................................................................................................88
10.8.2.1 Enable forcing by using LHMI............................................................................................ 88
10.8.2.2 Enable forcing using TESTMODE function block...............................................................88
10.8.3 How to change binary input/output signals using forcing........................................................ 88
10.8.3.1 Forcing by using LHMI....................................................................................................... 89
10.8.3.2 Forcing by using PCM600..................................................................................................90
10.8.4 How to undo forcing changes and return the IED to normal operation................................... 92
10.8.4.1 Undo forcing by using TESTMODE component.................................................................92
10.8.4.2 Undo forcing by using LHMI...............................................................................................92
10.8.4.3 Undo forcing by using PCM600..........................................................................................92
Section 11 Testing functionality by secondary injection................................................. 95
11.1 Testing disturbance report.........................................................................................................95
11.1.1 Introduction..............................................................................................................................95
11.1.2 Disturbance report settings..................................................................................................... 95
11.1.3 Disturbance recorder (DR)...................................................................................................... 95
11.1.4 Event recorder (ER) and Event list (EL)..................................................................................96
11.2 Identifying the function to test in the technical reference manual .............................................96
11.3 Differential protection.................................................................................................................96
11.3.1 Transformer differential protection T2WPDIF and T3WPDIF(87T)......................................... 96
11.3.1.1 Verifying the settings.......................................................................................................... 97
11.3.1.2 Completing the test............................................................................................................ 97
11.3.2 High impedance differential protection HZPDIF (87)...............................................................97
11.3.2.1 Verifying the settings.......................................................................................................... 98
11.3.2.2 Completing the test............................................................................................................ 98
11.3.3 Restricted earth fault protection, low impedance REFPDIF (87N).......................................... 98
11.3.3.1 Function revision history.....................................................................................................98
11.3.3.2 Verifying the settings.......................................................................................................... 99
11.3.3.3 Completing the test............................................................................................................ 99
11.3.4 Additional security logic for differential protection LDRGFC (11)............................................ 99
11.3.4.1 Verifying the settings.......................................................................................................... 99
11.3.4.2 Completing the test.......................................................................................................... 101
11.3.5 Self-adaptive differential protection for two-winding power transformers PSTPDIF (87T).... 101
11.3.5.1 Preparing the function for testing..................................................................................... 101
11.3.5.2 Verifying the zero-sequence current reduction from the winding one side.......................102
1MRK 504 165-UUS Rev. J Table of contents
Transformer protection RET670 3
Commissioning manual
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