Siemens SIPROTEC 7SD610, Руководство пользователя

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Functions
2.17 Additional Functions
SIPROTEC, 7SD610, Manual
C53000-G1176-C145-6, Release date 02.2011
251
Table 2-11 Operational measured values of the local device
1)
according to address 1104
2)
according to address 1103
3)
considering factor 221 I4/Iph CT
Measured Values Primary Second-
ary
% Referred to
I
L1
; I
L2
; I
L3
Phase currents A A Nominal operational current
1)
3 I
0
Earth current A A Nominal operational current
1)
ϕ
( I
L1
-I
L2
),
ϕ
( I
L2
- I
L3
),
ϕ
(
I
L3
-
I
L1
)
Phase angle of the phase currents
towards each other ° – –
I
1
,
I
2
Positive and negative sequence cur-
rents A A Nominal operational current
1)
I
Y
Transformer starpoint current A A Nominal operational current
1)3)
U
L1-L2
, U
L2-L3
, U
L3-L1
Phase-to-phase voltages kV V Nominal operational voltage
2)
U
L1-E
, U
L2-E
, U
L3-E
Phase-earth voltage kV V Rated operational voltage /
√
3
2)
3U
0
Displacement Voltage kV V Rated operational voltage /
√
3
2)
ϕ
(U
L1
-U
L2
),
ϕ
(U
L2
-U
L3
),
ϕ
(U
L3
-U
L1
)
Phase angle of the phase voltages
towards each other ° – –
ϕ
(U
L1
-
I
L1
),
ϕ
(U
L2
-
I
L2
),
ϕ
(U
L3
- I
L3
)
Phase angle of the phase voltages
towards the phase currents ° – –
U
1
, U
2
Positive and negative sequence com-
ponent of the voltages kV V Rated operational voltage /
√
3
2)
U
X
, U
EN
Voltage at measuring input U
4
– V –
U
1compound
Positive sequence component of volt-
ages at the remote end (if compound-
ing is active in voltage protection) kV V Operational rated voltage /
√
3
2)
S, P, Q Apparent, active and reactive power MVA,
MW,
MVAR
–
√
3·U
N
·
I
N
Nominal operational
quantities
1)2)
cos
ϕ
Power factor (abs) (abs) –
f Frequency (constellation frequency) Hz Hz Nominal Frequency
Θ
L1
/
Θ
TRIP
,
Θ
L2
/
Θ
TRIP
,
Θ
L3
/
Θ
TRIP
Thermal value of each phase,
referred to the tripping value % – Trip overtemperature
Θ
/
Θ
TRIP
Resulting thermal value,
referred to the tripping value, calculat-
ed according to the set method % – Trip overtemperature