Information to a Control Centre
If the device has a serial system interface, stored information may additionally be transferred via this interface
to a centralised control and storage device. Transmission is possible via different transmission protocols.
Measurement
A series of measured values and the values derived from them are constantly available for call up on site, or
for data transfer (see
).
Functional Description
Display of Measured Values of the Voltage Inputs:
The operational measured values of the voltages at the 6 voltage inputs are displayed as secondary values.
Primary and percentage values are not displayed.
Table 2-8
Operational Measured Values
Measured
Values
secondary
primary
%
U
a
,
U
b
,
U
c
,
U
d,
U
e
,
U
f,
U
sec.
no primary values
no percentage values
f
a
,
f
b
,
f
c
,
f
d
,
f
e
,
f
f
f in Hz
—
—
Synchronization Measured Values
The measured values derived from the synchronization function (see
) can be read out in secondary,
primary or percentage values. Such measured values can only be displayed if a group has been selected. A
prerequisite for a correct display of primary and percentage values is the complete and correct input of the
nominal values of the transformers.
shows the formulas which form the basis for the conversion
from secondary values into primary values and percentages.
Table 2-9
Conversion formulae between secondary values and primary/percentage values of the
synchronizing function
Measured
values
secon-
dary
primary
%
U1
U1
sek.
U2
U2
sek.
2.14.2
2.14.2.1
Functions
2.14 Auxiliary Functions
122
SIPROTEC 4, 7VE61 and 7VE63, Manual
C53000-G1176-C163-3, Edition 10.2017
Summary of Contents for SIPROTEC 4 7VE61
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