Siemens siprotec 7SA6 - Supplementary Functions

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%ofP
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%ofQ
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>0.5V
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 %