4 Technical Data
338
7UM61 Manual
C53000-G1176-C127-3
4.24 Auxiliary Functions
Operational Measured Values
Operational Measured Values for Currents I
L1
, I
L2
, I
L3
in A (kA) primary and in A secondary or in % of I
N
3I
0
in A (kA) primary and in A secondary
Range 10 % to 200 % I
N
Tolerance 0.2 % of measured value, or ±10 mA ±1 digit
Operational Measured Values for Currents I
Ns
Range 0 mA to 1600 mA
Tolerance 0.2 % of measured value, or ±10 mA ±1 digit
Positive sequence I
1
in A (kA) primary and in A
secondary or in % I
N
Negative sequence I
2
in A (kA) primary and in A
secondary or in % I
N
Operational Measured Values for Voltages
(Phase–Ground)
U
L1
, U
L2
, U
L3
in kV primary, in V secondary or in % of U
N
U
L1–L2
, U
L2–L3
, U
L3–L1
in kV primary, in V secondary or in % of U
N
U
E
or 3U
0
in kV primary, in V secondary or in % of U
N
Positive sequence component U1 and negative
sequence component U
2
in kV primary, in V secondary or in % of U
N
Range 10 % to 120 % of U
N
Tolerance 0.2 % of measured value, or ±0.2 mA ±1 digit
Operating Measured Values for Impedanc-
es
R, X
in Ω primary and secondary
Tole r ance 1 %
Operational Measured Values for Powers S, apparent power
in kVAr (MVAr or GVAr) primary and in % of S
N
P, active power (with sign)
in kVAr (MVAr or GVAr) primary and in % of S
N
Q, reactive power (with sign)
in kVAr (MVAr or GVAr) primary and in % of S
N
Range 0 % to 120 % S
N
Tole r ance 1 % ± 0,25 % S
N
with SN = √3 · U
N
· I
N
Operating Measured Value for Power
Factor
cos Ï•
Range -1 to +1
Tole r ance 1 % ± 1 Digit
Power Angle Ï•
Range –90° to +90°
Tole r ance 0.1 °
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