Enable forcing by using LHMI................................................ 77
Enable forcing using TESTMODE function block...................78
How to change binary input/output signals using forcing............ 78
Forcing by using LHMI........................................................... 78
Forcing by using PCM600...................................................... 80
How to undo forcing changes and return the IED to normal
operation......................................................................................82
Undo forcing by using TestMode component.........................82
Undo forcing by using LHMI................................................... 82
Undo forcing by using PCM600..............................................82
Section 10 Testing functionality by secondary injection...................85
Testing disturbance report................................................................85
Introduction..................................................................................85
Disturbance report settings..........................................................85
Disturbance recorder (DR).......................................................... 85
Event recorder (ER) and Event list (EL)...................................... 86
Identifying the function to test in the technical reference manual ....87
Differential protection........................................................................87
High impedance differential protection HZPDIF ......................... 87
Verifying the settings.............................................................. 87
Completing the test................................................................ 88
Additional security logic for differential protection LDRGFC .......88
Verifying the settings.............................................................. 88
Completing the test................................................................ 90
Impedance protection....................................................................... 90
Distance protection zones, quadrilateral characteristic
ZMQPDIS.................................................................................... 90
Measuring the operating limit of set values............................ 93
Measuring the operating time of distance protection zones... 94
Completing the test................................................................ 94
Phase selection with load encroachment, quadrilateral
characteristic FDPSPDIS ........................................................... 94
Measuring the operating limit of set values............................ 97
Completing the test................................................................ 97
Full scheme distance protection, mho characteristic ZMHPDIS..97
Phase-to-phase faults............................................................ 98
Phase-to-earth faults.............................................................. 99
Faulty phase identification with load encroachment
FMPSPDIS ............................................................................... 100
Distance protection zones, quadrilateral characteristic,
separate settings ZMRPDIS...................................................... 100
Measuring the operating limit of set values.......................... 103
Measuring the operating time of distance protection zones. 104
Table of contents
Line distance protection REL670 2.1 IEC 3
Commissioning manual
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