Function Range or value Accuracy
Operate level for non-directional residual
overvoltage
(1.00-200.00)% of UBase
±0.5% of U
r
at U £ U
r
±0.5% of U at U > U
r
Residual release current for all directional
modes
(0.25-200.00)% of IBase
±1.0% of I
r
at I £ I
r
±1.0% of I at I > I
r
Residual release voltage for all directional
modes
(1.00-300.00)% of UBase
±0.5% of U
r
at U £ U
r
±0.5% of U at U > U
r
Operate time for non-directional residual
overcurrent at 0 to 2 x I
set
Min. = 40 ms
Max. = 65 ms
Reset time for non-directional residual
overcurrent at 2 x I
set
to 0
Min. = 40 ms
Max. = 65 ms
Operate time for directional residual
overcurrent at 0 to 2 x I
set
Min. = 110 ms
Max. = 160 ms
Reset time for directional residual
overcurrent at 2 x I
set
to 0
Min. = 20 ms
Max. = 60 ms
Independent time delay for non-directional
residual overvoltage at 0.8 x U
set
to 1.2 x
U
set
(0.000 – 60.000) s ±0.2% or ± 75 ms
whichever is greater
Independent time delay for non-directional
residual overcurrent at 0 to 2 x I
set
(0.000 – 60.000) s ±0.2% or ± 75 ms
whichever is greater
Independent time delay for directional
residual overcurrent at 0 to 2 x I
set
(0.000 – 60.000) s ±0.2% or ± 170 ms
whichever is greater
Inverse characteristics, see table 677,
Table 678 and Table 679
16 curve types See Table 677,
Table 678 and Table
679
Relay characteristic angle (RCADir)
(-179 to 180) degrees ±2.0 degrees
Relay operate angle (ROADir) (0 to 90) degrees ±2.0 degrees
7.7 Thermal overload protection, one time constant,
Celsius/Fahrenheit LCPTTR/LFPTTR
IP14512-1 v7
7.7.1 Identification
M17106-1 v7
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Thermal overload protection, one time
constant, Celsius
LCPTTR 26
Thermal overload protection, one time
constant, Fahrenheit
LFPTTR 26
Section 7 1MRK 506 382-UEN A
Current protection
230 Line distance protection REL650 2.2 IEC
Technical manual
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