Siemens siprotec 7SJ63 - Measured Values

Operators Tools
7-16 7SJ63 Manual
C53000-G1140-C120-1
7.1.3.1 Measured Values
Readout of
Measured Values
In a fully configured 7SJ63 device, the following measured values are available:
• Ia, Ib, Ic, In: phase currents and ground current, primary in A and kA, secondary in
A and in % of the device nominal current.
• I
Ns
: ground current, primary in A and kA, secondary in A and in % of the device nom-
inal current, only for devices with the sensitive ground current measurement input.
• I
1
, I
2
: positive and negative sequence components of the currents, primary in A and
kA, secondary in A and in % of the device nominal current.
• Va, Vb, Vc: phase-to-ground voltages, primary in kV, secondary in V and in % of
V
Nom
/√3, assuming that the phase-to-ground voltages are connected.
• Va-b, Vb-c, Vc-a: phase-to-phase voltages, primary in kV, secondary in V and in %
of V
Nom
.
• 3V
0
or Ve-n: displacement voltage, either directly measured or calculated as
3V
0
=(Va + Vb + Vc), primary in kV, secondary in V and in % of V
Nom
/√3, provided
that phase-to-ground voltages are connected.
• V
1
, V
2
: positive and negative sequence components of the voltages, primary in kV,
secondary in V and in % of V
Nom
/√3.
V
A
, V
B
, V
C
,
V
0
, V
1
, V
2
V
φg SEC.
V
A-B
, V
B-C
, V
C-A
V
φφ SEC.
V
N
V
N SEC.
P, Q, S no secondary values
Tabelle 7-1 Convertion formula between secondary values and primary/percentage values
Measured
Value
Second
ary
Primary %
9QRP35,0$5<
9QRP6(&21'$5<
--------------------------------------------------
V
φg SEC.
⋅
V
prim.
935,0$5<23 3()⁄
---------------------------------------------------------------
9QRP35,0$5<
9QRP6(&21'$5<
--------------------------------------------------
V
φφ SEC.
⋅
V
prim.
935,0$5<23
-----------------------------------------------
9SK 9GHOWD⁄
9QRP35,0$5<
9QRP6(&21'$5<
--------------------------------------------------
V
N SEC.
⋅⋅
V
prim.
3 935,0$5<23⋅
------------------------------------------------------------------
Power
prim.
3
935,0$5<23 ,35,0$5<23 ⋅⋅
-----------------------------------------------------------------------------------------------------------------------------
Settings Address Settings Address
9QRP35,0$5< 202 &71&73K 207
9QRP6(&21'$5< 203 &71V&73K 208
&735,0$5< 204 935,0$5<23 1101
&76(&21'$5< 205 ,35,0$5<23 1102
9SK9GHOWD 206
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