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Slope = 0.8
Slope = 1
Operation
area
I
MinOp
99000068.vsd
phase
ref
|
å
I
| - | I
|
phase
ref
|
å
I
| + | I
|
IEC99000068 V1 EN
Figure 88:
Operate characteristics
Due to the formulas for the axis compared, |
S
Iphase | - |I ref | and |
S
I phase
| + | I ref | respectively, the slope can not be above 2.
9.1.7
Technical data
Table 154:
CCSRDIF (87) technical data
Function
Range or value
Accuracy
Operate current
(5-200)% of I
n
±
10.0% of I
n
at I
£
I
n
±
10.0% of I at I > I
n
Block current
(5-500)% of I
n
±
5.0% of I
n
at I
£
I
n
±
5.0% of I at I > I
n
9.2
Fuse failure supervision SDDRFUF
9.2.1
Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Fuse failure supervision
SDDRFUF
-
-
Section 9
1MRK 511 287-UUS A
Secondary system supervision
206
Technical manual
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