Auxiliary Functions
Operational Measured Values
Currents
Ι
A
; Ι
B
; Ι
C
Positive sequence component Ι
1
Negative sequence component Ι
2
Ι
N
or 3Ι0
in A (kA) primary and in A secondary or in % Ι
Nom
Range
Tolerance
1)
10 % to 150 % Ι
Nom
1.5 % of measured value or 1 % Ι
Nom
and between 151 % and 200 % INom 3 % of measured value
Voltages (phase-to-ground)
V
A-N
, V
B-N
, V
C-N
Voltages (phase-to-phase)
V
A-B
, V
B-C
, V
C-A
, V
SYN
V
N
, V
ph-N
, V
x
or V
0
Positive sequence component V
1
Negative sequence component V
2
in kV primary, in V secondary or in % V
Nom
Range
Tolerance
1)
10 % to 120 % of V
Nom
1.5 % of measured value or 0.5 % V
Nom
S, apparent power in kVAr (MVAR or GVAR) primary and in % S
Nom
Range
Tolerance
1)
0 % to 120 % S
Nom
1.5 % of S
Nom
for V/V
Nom
and Ι/Ι
Nom
= 50 to 120 %
P, Active power with sign, total and phase-segregated in kW (MW or GW)
primary and in % S
Nom
Range
Tolerance
1)
0 % to 120 % S
Nom
2 % of S
Nom
for V/V
Nom
and Ι/Ι
Nom
= 50 to 120 % and | cos φ | = 0.707 to 1
with S
Nom
=√
3 · V
Nom
· Ι
Nom
Q, reactive power with sign, total and phase-segregated in kVAr (MVAr or GVAr)
primary and in % S
Nom
Range
Tolerance
1)
0 % to 120 % S
Nom
2 % of S
Nom
for V/V
Nom
and Ι/Ι
Nom
= 50 to 120 % und | sin φ | = 0.707 to 1
with S
Nom
= √
3· V
Nom
· Ι
Nom
cos φ, power factor total and phase-segregated
Range
Tolerance
1)
–1 to +1
2 % for | cos φ | ≥ 0.707
Frequencies f in Hz
Range
Tolerance
1)
f
Nom
± 5 Hz
20 mHz
Temperature overload protection
Θ /Θ
Trip
in %
4.23
Technical Data
4.23 Auxiliary Functions
416 SIPROTEC 4, 7SJ80, Manual
E50417-G1140-C343-A8, Edition 12.2017
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