Hitachi Relion 670 Series Applications Manual page 21

1MRK506375-UEN Rev. N
21.8.2 Setting guidelines............................................................................................................403
21.9 Signal matrix for mA inputs SMMI..................................................................................... 403
21.9.1 Application.......................................................................................................................403
21.9.2 Setting guidelines............................................................................................................403
21.10 Test mode functionality TESTMODE.................................................................................403
21.10.1 Application ......................................................................................................................403
21.10.1.1
21.10.2 Setting guidelines............................................................................................................405
21.11 Time synchronization TIMESYNCHGEN...........................................................................405
21.11.1 Application.......................................................................................................................405
21.11.2 Setting guidelines............................................................................................................406
21.11.2.1
21.11.2.2
21.11.2.3
Section 22 Requirements.............................................................................................409
22.1 Current transformer requirements..................................................................................... 409
22.1.1 Current transformer basic classification and requirements............................................. 409
22.1.2 Conditions....................................................................................................................... 410
22.1.3 Fault current.................................................................................................................... 411
22.1.4 Secondary wire resistance and additional load............................................................... 411
22.1.5 General current transformer requirements...................................................................... 411
22.1.6 Rated equivalent secondary e.m.f. requirements............................................................412
22.1.6.1
22.1.6.2
22.1.6.3
22.1.6.4
22.1.6.5
22.1.6.6
22.1.6.7
22.1.7 Current transformer requirements for CTs according to other standards........................ 418
22.1.7.1
22.1.7.2
22.1.7.3
22.2 Voltage transformer requirements..................................................................................... 419
22.3 SNTP server requirements................................................................................................420
22.4 PTP requirements............................................................................................................. 420
22.5 Sample specification of communication requirements for the protection and control
terminals in digital telecommunication networks............................................................... 420
22.6 IEC/UCA 61850-9-2LE Merging unit requirements .......................................................... 421
Section 23 Glossary..................................................................................................... 423
Railway application RER670
Application manual
IEC 61850 protocol test mode....................................................................................403
System time............................................................................................................... 406
Synchronization..........................................................................................................406
Process bus IEC/UCA 61850-9-2LE synchronization................................................ 407
Transformer differential protection............................................................................. 412
Distance protection.................................................................................................... 413
Breaker failure protection........................................................................................... 414
Non-directional instantaneous and definitive time, phase and residual
overcurrent protection................................................................................................ 414
Non-directional inverse time delayed phase and residual overcurrent protection......414
Directional phase and residual overcurrent protection...............................................415
Restricted earth fault protection (low impedance differential).................................... 416
Current transformers according to IEC 61869-2, class P, PR.................................... 418
Current transformers according to IEC 61869-2, class PX, PXR (and old IEC
60044-6, class TPS and old British Standard, class X)..............................................418
Current transformers according to ANSI/IEEE...........................................................419
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