Technical Data - ABB REL650 series Technical Manual

Section 10
Secondary system supervision
10.1.7
10.2
10.2.1
332
| åI
| - | I |
phase ref
I
MinOp
IEC99000068 V1 EN
Figure 156: Operate characteristics
Due to the formulas for the axis compared, |SIphase | - |I ref | and |S I phase
| + | I ref | respectively, the slope can not be above 2.

Technical data

Table 226: CCSRDIF (87) technical data
Function
Operate current
Block current
Fuse failure supervision SDDRFUF
Identification
Function description
Fuse failure supervision
Slope = 1
Slope = 0.8
| åI
Range or value
(5-200)% of I
n
(5-500)% of I
n
IEC 61850 IEC 60617
identification identification
SDDRFUF -
1MRK 506 335-UUS A
Operation
area
| + | I |
phase ref
99000068.vsd
Accuracy
± 10.0% of I at I £ I
n n
± 10.0% of I at I > I
n
± 5.0% of I at I £ I
n n
± 5.0% of I at I > I
n
ANSI/IEEE C37.2
device number
-
Technical manual