Siemens siprotec 7SA6, Manual

Page: 531 / 876

Control During Operation
7-17
7SA6 Manual
C53000-G1176-C156-2
If the device is provided with analog outputs allocated to certain measured values dur-
ing the configuration according to Section 5.1, they can be read out in the display (e.g.
analog instrument).
Except for the current measured values the user can also read out the minimum, max-
imum and long-term measured values. The interval range for the calculation of the av-
erage value was set in Subsection 6.23.4.
The following average values are available:
•
I
L1
dmd, I
L2
dmd, I
L3
dmd, I
1
dmd: the measured values of the phase currents and
positive sequence system;
•
Pdmd, Pdmd Forw, Pdmd Rev: the active power as a whole and separately accord-
ing to Demand Forward and Demand Reverse;
•
Qdmd, QdmdForw, QdmdRev: the reactive power as a whole and separately ac-
cording to Demand Forward and Demand Reverse;
•
Sdmd: the apparent power.
For the following values both the minimum and the maximum values are available:
•
I
L1
, I
L2
, I
L3
, I
1
: phase currents and the positive sequence current;
•
I
L1
d, I
L2
d, I
L3
d, I
1
d: average values of the phase currents and the positive sequence
current;
•
U
L1–E
, U
L2–E
, U
L3–E
, U
1
: phase-earth voltages and positive sequence voltage;
•
U
L1–L2
, U
L2–L3
, U
L3–L1
, 3U
0
: phase-phase voltages and zero sequence voltage;
•
PForw, PRev, QForw, QRev, S: active and reactive power separately according to
Demand Forward and Demand Reverse as well as apparent power;
•
Pd, Qd, Sd: average values of active, reactive and apparent power;
Tabelle 7-2 Operating measured values transmitted from the other end via protection data
interface in comparison with the local operating measured values
Data
prim. value
Geräte ADR device address of the remote device (absolute)
I
L1
, I
L2
, I
L3
remote phase currents of the remote device operating nominal current
1
)
I
L1
, I
L2
, I
L3
local phase currents of the local device operating nominal current
1
)
ϕ
(I
L1
),
ϕ
(I
L2
),
ϕ
(I
L3
) phase angles between remote and
local phase currents °
U
L1
, U
L2
, U
L3
remote voltages of remote device operating nominal voltage
/
√
3
2
)
U
L1
, U
L2
, U
L3
local voltages of local device operating nominal voltage
/
√
3
2
)
ϕ
(U
L1
),
ϕ
(U
L2
),
ϕ
(U
L3
) phase angles between remote and
local voltages
°
1
) for lines acc. to address
1104
(refer to Subsection 6.1.3),
2
) acc. to address
1103
(refer to Subsection 6.1.3)