Siemens siprotec 7SD5, Руководство пользователя

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2 Functions
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7SD5 Manual
C53000-G1176-C169-1
2.24.6 Remote Measured Values
2.24.6.1 Functional Description
During communication, the data of the other ends of the protected object can also be
read out. For each of the devices, the currents and voltages involved as well as phase
shifts between the local and transfer measured quantities can be displayed. This is es-
pecially helpful for checking the correct and coherent phase allocation at the different
line ends. Furthermore, the device addresses of the other devices are transmitted so
that all important data of all ends are available in the substation. All possible data are
listed in Table 2-22.
Table 2-22 Operational measured values transmitted from the other ends and compared
with the local values
1)
for lines according to address 1104
2)
according to address 1103
The information overviews below show you which information is available for each
device.
Data Primary value
Device ADR Device address of the remote
device (absolute)
I
L1
; I
L2
; I
L3
remote Phase currents of the remote
device Nominal operational current
1)
I
L1
, I
L2
, I
L3
local Phase currents of the local device Nominal operational current
1)
ϕ
( I
L1
),
ϕ
( I
L2
),
ϕ
( I
L3
) Phase angles between the remote
and the local phase currents
°
U
L1
, U
L2
, U
L3
remote Voltages of the remote device Nominal operational voltage /
√
3
2)
U
L1
, U
L2
, U
L3
local Voltages of the local device Nominal operational voltage /
√
3 2)
ϕ
(U
L1
),
ϕ
(U
L2
)
ϕ
(U
L3
) Phase angles between the remote
and the local voltages
°
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