ABB RET670 - Locating and using the single line diagram

Table 128. Differential functions
Function Function
identification
Ordering no Positi
on
Available
qty
Selected
qty
Notes and
rules
Transformer differential protection, two winding T2WPDIF 1MRK005904-FA 5 0-2 Note: One,
and only
one PDIF
must be
ordered.
Transformer differential protection, three winding T3WPDIF 1MRK005904-GA 6 0-2
1Ph High impedance differential protection HZPDIF 1MRK005904-HA 7 0-6
Restricted earth fault protection, low impedance REFPDIF 1MRK005904-LA 9 0-3
Additional security logic for differential protection LDRGFC 1MRK005904-TA 14 0-1
Table 129. Impedance protection
Po
siti
on
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
B 0 0 0 0
Transformer protection RET670 2.0
1MRK 504 141-BEN C
Product version: 2.0
ABB 105