ABB REC650 ANSI, Техническое руководство

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Function Range or value Accuracy
Relay open angle ROA (0-90) degrees
±
2.0 degrees
Operate time, non-directional
residual over current
60 ms typically at 0 to 2 x I
set
60 ms typically at 0 to 2 x 1
set
Reset time, non-directional
residual over current
65 ms typically at 2 to 0 x I
set
65 ms typically at 2 to 0 x 1
set
Operate time, non-directional
residual overvoltage
45 ms typically at 0.8 to 1.5 x U
set
45 ms typically at 0.8 to 1.5 x U
set
Reset time, non-directional
residual overvoltage
85 ms typically at 1.2 to 0.8 x U
set
85 ms typically at 1.2 to 0.8 x U
set
Operate time, directional
residual over current
140 ms typically at 0.5 to 2 x I
set
-
Reset time, directional
residual over current
85 ms typically at 2 to 0.5 x I
set
-
Critical impulse time non-
directional residual over
current
35 ms typically at 0 to 2 x I
set
-
Impulse margin time non-
directional residual over
current
25 ms typically -
6.6 Thermal overload protection, one time constant
Fahrenheit/Celsius LFPTTR/LCPTTR (26)
6.6.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Thermal overload protection, one time
constant, Fahrenheit
LFPTTR 26
Thermal overload protection, one time
constant, Celsius
LCPTTR 26
6.6.2 Functionality
The increasing utilizing of the power system closer to the thermal limits has generated a
need of a thermal overload protection also for power lines.
Section 6
1MRK 511 287-UUS A
Current protection
128
Technical manual