ABB RET670 Commissioning Manual page 9

9.8.2.2 Enable forcing using TESTMODE function block..................................................................... 70
9.8.3 How to change binary input/output signals using forcing.......................................................70
9.8.3.1 Forcing by using LHMI....................................................................................................................71
9.8.3.2 Forcing by using PCM600..............................................................................................................72
9.8.4 How to undo forcing changes and return the IED to normal operation................................. 74
9.8.4.1 Undo forcing by using TestMode component.......................................................................... 74
9.8.4.2 Undo forcing by using LHMI......................................................................................................... 74
9.8.4.3 Undo forcing by using PCM600................................................................................................... 74
Section 10 Testing functionality by secondary injection.....................................................77
10.1 Testing disturbance report...................................................................................................................77
10.1.1 Introduction.........................................................................................................................................77
10.1.2 Disturbance report settings.............................................................................................................77
10.1.3 Disturbance recorder (DR)................................................................................................................77
10.1.4 Event recorder (ER) and Event list (EL).......................................................................................... 78
10.2 Identifying the function to test in the technical reference manual .............................................78
10.3 Differential protection...........................................................................................................................79
10.3.1 Transformer differential protection T2WPDIF and T3WPDIF(87T).......................................... 79
10.3.1.1 Verifying the settings.....................................................................................................................79
10.3.1.2 Completing the test.......................................................................................................................80
10.3.2 High impedance differential protection HZPDIF (87)................................................................ 80
10.3.2.1 Verifying the settings.................................................................................................................... 80
10.3.2.2 Completing the test.......................................................................................................................80
10.3.3 Restricted earth-fault protection, low impedance REFPDIF (87N)...........................................81
10.3.3.1 Verifying the settings.....................................................................................................................81
10.3.3.2 Completing the test....................................................................................................................... 81
10.3.4 Additional security logic for differential protection LDRGFC (11)............................................81
10.3.4.1 Verifying the settings.....................................................................................................................81
10.3.4.2 Completing the test....................................................................................................................... 83
10.4 Impedance protection........................................................................................................................... 83
10.4.1 Distance protection zones, quadrilateral characteristic ZMQPDIS (21)..................................83
10.4.1.1 Measuring the operating limit of set values............................................................................. 86
10.4.1.2 Measuring the operating time of distance protection zones................................................87
10.4.1.3 Completing the test....................................................................................................................... 87
10.4.2 Phase selection with load encroachment, quadrilateral characteristic FDPSPDIS (21)....... 87
10.4.2.1 Measuring the operating limit of set values............................................................................. 90
10.4.2.2 Completing the test.......................................................................................................................90
10.4.3 Full scheme distance protection, mho characteristic ZMHPDIS (21)...................................... 90
10.4.3.1 Phase-to-phase faults.................................................................................................................... 91
10.4.3.2 Phase-to-ground faults..................................................................................................................91
10.4.4 Faulty phase identification with load encroachment FMPSPDIS (21)......................................92
10.4.5 Distance protection zones, quadrilateral characteristic, separate settings ZMRPDIS
(21).........................................................................................................................................................92
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