Siemens SIPROTEC 4 7UT6 Series Manual page 462

Differential protection
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Technical Data
4.22 Additional Functions
Operational values for
power
(3-phase, if voltage
connected)
Operational measured
values for power
(1–phase, with measured
or rated voltage)
Operational values for
power factor
(3-phase, if voltage
connected)
Operational measured
values for thermal value
(overload protection acc.
to IEC 60255-8)
Operational measured
values for thermal value
(overload protection acc.
to IEC 60354)
Tolerances are based on the preset matching parameters. Higher tolerances are to be expected for calculated
values dependent on the matching factors for currents and voltages.
Measured values of differ-
ential protection
Measured values of
restricted earth fault
protection
Tolerances are based on the preset matching parameters for a protected object with 2 sides and 1 measuring
location on each side. Higher tolerances are to be expected for calculated values dependent on the matching
factors for currents and the number of measuring locations.
Fault Logging
Storage of the messages of the last 8 faults
Fault Recording
Number of stored fault records
Storage period per fault record
Sampling rate at f
Sampling rate at f
Sampling rate at f
462
Active power P; reactive power Q; apparent power S in kW; MW; kVA; MVA primary
– Tolerance
S (apparent power) in kVA; MVA primary
cos φ
Θ
; Θ
; Θ
; Θ
L1
L2
L3
res
Θ
to Θ
in °C or °F relative ageing rate, load reserve
RTD1
RTD12
; Ι
; Ι
Ι
diffL1
diffL2
diffL3
in % of the operational nominal current
Tolerance (with preset values)
(for 2 sides with 1 measuring location
each)
; Ι
in % of the operational nominal current
Ι
diffREF
restREF
– Tolerance (with preset values)
(for 1 side or 1 measuring location)
= 50 Hz
N
= 60 Hz
N
= 16.7 Hz (only for 7UT613/63x)
N
1.2 % of measured value or 0.25 % S
referred to tripping temperature rise θ
; Ι
; Ι
; Ι
;
stabL1
stabL2
stabL3
2 % of measured value or 2 % Ι
(50/60 Hz)
3 % of measured value or 3 % Ι
only for 7UT613/63x)
2 % of measured value or 2 % Ι
(50/60 Hz)
3 % of measured value or 3 % Ι
only for 7UT613/63x)
with a total of max. 200 messages
max. 8
approx. 5 s per fault at 50/60 Hz,
approx. 5 s total sum
approx. 18 s per fault at 16.7 Hz,
approx. 18 s total sum (only for 7UT613/63x)
1.25 ms
1.04 ms
3.75 ms
trip
SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016
N
N
(16.7 Hz;
N
N
(16.7 Hz;
N

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