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4 Technical Data
4.24
Additional Functions
Measured Values
Operational measured values for currents
Tolerance
Phase angles of currents
Tolerance
Operational measured values for voltages
Tolerance
Operational measured values for voltages
Tolerance
Operational measured values for voltages
Tolerance
Phase angle of voltages
Tolerance
Phase angle for voltages and currents
Tolerance
Operational measured values of impedances
Operational measured values for power
Tolerance for S
Tolerance for P
Tolerance for Q
Operating measured value for power factor
Tolerance
Counter values for energy
Tolerance at nominal frequency
Operational measured values for frequency
Range
Tolerance
Measured values of the differential protection
Thermal measured values
Operational measured values of synchro check
574
I
; I
; I
; 3I
; I
; I
; I
; I
I
L1
L2
L3
0
1
2
Y
P;
in A primary and secondary and in % I
0.5 % of measured value or 0.5 % of I
ϕ(I
); ϕ(I
); ϕ(I
-I
-I
-I
L1
L2
L2
L3
L3
L1
1° at nominal current
U
, U
, U
; 3U
; U
; U
L1-E
L2-E
L3-E
0
0
in kV primary, in V secondary or in % U
0,5 % of measured value or 0,5 % of U
U
; U
EN
X
in V secondary
0.5 % of measured value, or 0.5 % of U
U
, U
, U
L1-L2
L2-L3
L3-L1
in kV primary, in V secondary or in % U
0.5 % of measured value or 0.5 % of U
ϕ(U
); ϕ(U
); ϕ(U
-U
-U
L1
L2
L2
L3
L3
1 ° at nominal voltage
ϕ(U
); ϕ(U
); ϕ(U
-I
-I
-I
L1
L1
L2
L2
L3
1° at nominal voltage and nominal current
R
, R
, R
, R
, R
L1-L2
L2-L3
L3-L1
L1-E
X
, X
, X
, X
, X
L1-L2
L2-L3
L3-L1
L1-E
in Ω primary and secondary
S; P; Q (apparent, active and reactive power)
in MVA; MW; Mvar primary and % S
(operational nominal power) = √3 · U
1 % of S
at I/I
and U/U
in range 50 to 120 %
N
N
N
1 % of S
at I/I
and U/U
in the range from 50 to 120 % and
N
N
N
ABS(cos ϕ) in the range ≥ 0,7
1 % of S
at I/I
and U/U
in the range from 50 to 120 % and
N
N
N
ABS(cos ϕ) in the range ≤ 0,7
cos ϕ
0.02
W
+, W
+; W
-; W
- (active and reactive energy)
p
q
p
q
in kWh (MWh or GWh) and
in kVARh (MVARh or GVARh)
5 % for I > 0.5 I
, U > 0.5 U
N
f in Hz and % f
N
10 Hz to 75 Hz
± 10 % at nominal values
20 mHz in range f
N
I
; I
; I
;
DIFFL1
DIFFL2
DIFFL3
I
; I
; I
;
RESTL1
RESTL2
RESTL3
; I
; I
;
I
CL1
CL2
CL3
I
DIFF3I0
in % I
NOperation
ΘL1/Θ
; Θ
; Θ
/Θ
/Θ
TRIP
L2
TRIP
L3
related to tripping temperature rise
U
; U
; U
in kV primary
line
sync
diff
f
, f
, f
in Hz;
line
sync
diff
ϕ
in°
diff
EE
N
N
) in °
; U
; U
1
2
1Ko
/√3
N
N
N
N
N
) in °
-U
L1
) in °
L3
, R
,
L2-E
L3-E
, X
L2-E
L3-E
N
· I
N
N
and | cosϕ | ≥ 0.707
N
; Θ/Θ
TRIP
TRIP
7SD5 Manual
C53000-G1176-C169-1
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