Siemens siprotec 7SA6, Manual

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Technical Data
10-44
7SA6 Manual
C53000-G1176-C156
10.21 Supplementary Functions
Measured Value
Processing Operational measured values of currents I
L1
; I
L2
; I
L3
; 3I
0
; I
1
; I
2
; I
Y
; I
P
in A primary and secondary and in % I
N
– Tolerance 0.5 % of measured value or 0.5 % of I
N
Operational measured values of voltages U
L1–E
; U
L2–E
; U
L3–E
; U
X
in kV primary and V second. and % U
N
/
√
3
– Tolerance 0.5 % of measured value or 0.5 % of U
N
Operational measured values of voltages 3U
0
in kV primary and
V secondary and % U
N
·
√
3
– Tolerance 0.5 % of measured value or 0.5 % of U
N
Operational measured values of voltages U
L1–L2
; U
L2–L3
; U
L3–L1
; U
1
; U
2
; U
x
in kV primary and V secondary and % U
N
– Tolerance 0.5 % of measured value or 0.5 % of U
N
Operational measured values of
impedances
R
L1–E
; R
L2–E
; R
L3–E
; R
L1–L2
; R
L2–L3
;
R
L3–L1
; X
L1–E
; X
L2–E
; X
L3–E
; X
L1–L2
;
X
L2–L3
; X
L3–L1
in
Ω
primary and secondary
Operational measured values of power S; P; Q (apparent, active and
reactive power)
in MVA; MW; Mvar primary and % S
N
(operational nominal power) =
√
3 · U
N
· I
N
– Tolerance 1 % of S
N
for I/I
N
and U/U
N
in the range from 50 to 120 %
1 % of P
N
for I/I
N
and U/U
N
in the range from 50 to 120 % and
ABS(cos
ϕ
) in the range from 0.7 to 1
1 % of Q
N
for I/I
N
and U/U
N
in the range from 50 to 120 % and
ABS(sin
ϕ
) in the range from 0.7 to 1
Operational measured values
of power factor
cos
ϕ
– Tolerance 0.02
Counter Values for Energy
– Wp, Wq (real and reactive energy)
in kWh (MWh or GWh) and in kVARh
(MVARh or GVARh)
- Tolerance*) 5% for I > 0.5 I
Nom
, V> 0.5 V
Nom
and
|cos
ϕ
|
≥
0.707
*) at f = f
N
Operational measured value
of frequency
f
in Hz and % f
N
– Range 96 % to 104 % of f
N
– Tolerance 10 mHz or 0.2 %