Hitachi Relion 670 Series Product Manual page 130

Line differential protection RED670
Version 2.2
Direct transfer trip
Table 100. Low active power and power factor protection LAPPGAPC
Function
Operate value, low active power
Reset ratio, low active power
Operate value, low power factor
Independent time delay to operate for low
active power at 1.2 x P to 0.8 x P
set
Independent time delay to operate for low
power factor at 1.2 x PF to 0.8 x PF
set
Critical impulse time, low active power
Impulse margin time, low active power
Table 101. Compensated over- and undervoltage protection COUVGAPC
Function
Operate value, undervoltage
Absolute hysteresis
Critical impulse time, undervoltage
Impulse margin time, undervoltage
Operate value, overvoltage
Critical impulse time, overvoltage
Impulse margin time, overvoltage
Independent time delay for
undervoltage functionality at 1.2 x U
to 0.8 x U
set
Independent time delay for overvoltage
functionality at 0.8 x U to 1.2 x U
set
Table 102. Sudden change in current variation SCCVPTOC
Function
Operate value, overcurrent
Hold time for operate signal at 0 to 2 x
Iset
Table 103. Carrier receive logic LCCRPTRC
Function
Operation mode
Independent time delay
130
GUID-B5714FAE-A87D-4C2D-A167-6CB3522CE1D5 v5
Range or value
(2.0-100.0)% of SBase
<105%
0.00-1.00
(0.000-60.000) s
set
(0.000-60.000) s
set
10 ms typically at 1.2 x P
x P
set
10 ms typically
GUID-D9EADF1B-5FC7-4FDB-BF38-95BDBC4D7C3D v5
Range or value
(1-100)% of UBase
(0.00–50.0)% of UBase
10 ms typically at 1.2 x U
U
set
15 ms typically
(1-200)% of UBase
10 ms typically at 0.8 x U
U
set
15 ms typically
(0.000-60.000) s
set
(0.000-60.000) s
set
GUID-4BF21D95-4517-424E-BC23-6156EA0E253C v4
Range or value
(5-100)% of IBase
(0.000-60.000) s
GUID-C99E063D-B377-40D5-8481-9F46D4166AED v3
Range or value
1 Out Of 2
2 Out Of 2
(0.000-60.000) s
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Accuracy
±1.0% of S
r
-
±0.02
±0.2% or ±40 ms whichever is greater
±0.2% or ±40 ms whichever is greater
to 0.8 -
set
-
Accuracy
±0,5% of U
r
±0.5% of U at U ≤ U
r
±0.5% of U at U > U
to 0.8 x -
set
-
±0.5% of U at U≤U
r
± 0.5% of U at U>U
to 1.2 x -
set
-
±0.2% or ±40 ms whichever is greater
±0.2% or ±40 ms whichever is greater
Accuracy
±2.0% of I
r
±0.2% or ±15 ms whichever is greater
Accuracy
-
±0.2% or ±35 ms whichever is greater
1MRK 505 379-BEN R
r
r
r
r
Hitachi Energy