ABB Relion 670 series - Page 53

IEC14000047 -1-en.ai
IEC14000047 V1 EN-US
Figure 38: Selectivity chart
Setting example with two transformers in the protected zone (master-
slave differential operation)
IEC13000295-2-en.vsdx
A
B
C
T
B
T
A
IED
IED
IED
IEC13000295 V2 EN-US
Figure 39: Master- slave differential operation
Setting
Station A Station B Station C
PDIF L3TCPDIF
NoOfUsedCTs 3
TraAOnInpCh 2
TraBOnInpCh 3
1MRK 505 382-UEN B Section 4
Analog and binary signal transfer for line differential protection
Communication set-up 670/650 series 2.2 47
Application Guide