Information List - Siemens SIPROTEC 7UT613 series Manual

Differential protection
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Table 2-15
Thermal Measured Values
Measured values
θ
; θ
;
Thermal value of each phase, referred to
L1
OFF
L2
OFF
θ
1)
the tripping value
L3
OFF
θ/θ
1)
Thermal resultant value, referred to the
Trip
tripping value
2) 3)
Ag.rate
Relative ageing rate L
2)3)
Res Warn
Load reserve to hot-spot/ageing alarm
(stage 1)
2) 3)
Res Alarm
Load reserve to hot-spot tripping (stage
1)
θ leg L1; θ leg L2; θ
Hot-spot temperature for each phase (Y
2) 3)
leg L3
winding or Z winding)
θ leg L12; θ leg L23;
Hot-spot temperature for each phase (D
θ leg L31
2) 3)
winding)
θ RTD 1... θ RTD 12
Temperature measured at the
3)
Temperature detectors 1 to 12
1)
only for overload protection with thermal replica (IEC 60255-8): Address 142 THERM. OVERLOAD = th repl w. sens
2)
only for overload protection with hot-spot calculation (IEC 60354): Address 142 THERM. OVERLOAD = IEC354
3)
only if RTD box(es) available
4)
only for CFC and serial interfaces

2.22.3.2 Information List

No.
Information
044.2611 Θ/Θtrip =
044.2612 Θ/ΘtripL1=
044.2613 Θ/ΘtripL2=
044.2614 Θ/ΘtripL3=
044.2615 Θ leg L1=
044.2616 Θ leg L2=
044.2617 Θ leg L3=
044.2618 Θ leg L12=
044.2619 Θ leg L23=
044.2620 Θ leg L31=
044.2621 Ag.Rate=
044.2622 ResWARN=
044.2623 ResALARM=
204.2611 2Θ/Θtrip =
7UT613/63x Manual
C53000-G1176-C160-2
phase concatenation (D windings). For standard vector groups, this information corre-
spond to the ends of the windings. In more unusual vector groups (which are created
by phase swapping), the phase assignment in the vector group is not always clear.
The thermal values are referred to the tripping temperature rise. For degrees of tem-
perature there are no referred values. However, since further processing of such
values (in CFC or when transmitted through serial interfaces) requires values without
dimension, arbitrary references have been chosen, which are contained in Table 2-15
in the column „% conversion".
Type of In-
formation
MV
MV
MV
MV
MV
MV
MV
MV
MV
MV
MV
MV
MV
MV
Dimension
%
%
p.u.
%
%
°C or °F
°C or °F
°C or °F
Comments
Temperat. rise for warning and trip
Temperature rise for phase L1
Temperature rise for phase L2
Temperature rise for phase L3
Hot spot temperature of leg L1
Hot spot temperature of leg L2
Hot spot temperature of leg L3
Hot spot temperature of leg L12
Hot spot temperature of leg L23
Hot spot temperature of leg L31
Aging Rate
Load Reserve to warning level
Load Reserve to alarm level
O/L2 Temperat. rise for warning and trip
2.22 Additional Functions
4)
% Conversion
0 °C = 0 %
500 °C = 100 %
0 °F = 0 %
1000 °F = 100 %
311

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