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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-US
Figure 128:
Trip 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 1.
13.1.7
Technical data
M12358-1 v10
Table 204:
CCSSPVC(87) technical data
Function
Range or value
Accuracy
Trip current
(10-200)% of IBase
±10.0% of I
n
at I ≤ I
n
±10.0% of I at I > I
n
Reset ratio, Trip current
>90%
Block current
(20-500)% of IBase
±5.0% of I
n
at I ≤ I
n
±5.0% of I at I > I
n
Reset ratio, Block current
>90% at (50-500)% of IBase
13.2
Fuse failure supervision FUFSPVC
IP14556-1 v3
Section 13
1MRK 511 408-UUS A
Secondary system supervision
366
Phasor measurement unit RES670 2.2 ANSI
Technical manual
Summary of Contents for Relion RES670
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