Siemens siprotec 7SA522 User Manual page 422

Control During Operation
Table 7-1 Operational measured values
Measured values
I , I , I
L1 L2 L3
3I
0
I , I
1 2
3I0
sen
I , I
Y P
U , U , U
L1–L2 L2–L3 L3–L1
U , U , U
L1–E L2–E L3–E
3U
0
U
X
U , U
1 2
R, X
S, P, Q
ϕ
cos
f
1
) acc. to address  (refer to Sub-section 6.1.3)
3 ) with consideration of the factor  ,,SK &7 (refer to Sub-section 6.1.1)
4
) with consideration of the factor  8SK  8GHOWD (refer to Sub-section 6.1.1)
From the
Device Front
7-14
phase currents
earth currents
pos. and neg. seq. currents
sensitive earth current
transformer star point current or
earth current in the parallel line
line voltages
phase-earth voltages
displacement voltage
voltage at the measuring input U
pos. and neg. seq. voltages
operational resistance, reactance
apparent, real, and reactive power MVA, MW,
power factor
frequency
With a device ready for operation, first press the
key to select the menu item 0HDVXUHPHQW, and switch to the list of meas-
Use the
ured values using the
0$,1 0(18

$QQXQFLDWLRQ
!0HDVXUHPHQW
Figure 7-16 Selection of measured values on the front — example
The measured values are divided into the following groups:
01 2SHUDWLRQ SUL
03 ,PSHGDQFH 3ULP
11 2SHUDWLRQ VHF
13 ,PSHGDQFH 6HF
primary secondary
A A
A A
A A
A mA
A A
kV V
kV V
kV V
kV V
4
kV V
Ω Ω
—
MVAR
(abs) (abs)
Hz Hz
2
) acc. to address (refer to Sub-section 6.1.3)
key. The 0($685(0(17 selection appears. See figure 7-16.

²! 
²! 
Operating measured values, primary.
Primary operating impedance.
Operating measured values, secondary.
Secondary operating impedance;
% referred to
rated operational current
rated operational current
rated operational current
rated operational current
rated operational current
rated operational voltage
rated operational voltage
rated operational voltage
rated operational voltage
rated operational voltage
—
√3·U
·I
N
rated operational values
—
rated frequency
key. The 0$,1 0(18 appears.
MENU
0($685(0(17

!2SHUDWLRQ SUL
!2SHUDWLRQ VHF
Etc.
C53000-G1176-C119-2
1
)
1
)
1
)
1 3
) )
1 3
) )
2
)
2
/√3
)
2 4
·√3
) )
2
/√3
)
2
/√3
)
N
1 2
) )
.



7SA522 Manual