Direct Transfer Trip; Compensated Over- And Undervoltage Protection Couvgapc; Sudden Change In Current Variation Sccvptoc - ABB RED670 Product Manual

Line differential protection RED670 2.1 IEC
Product version: 2.1

Direct transfer trip

Table 83. 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 to 0.8
x P
set
Independent time delay to operate for low power factor at 1.2 to 0.8
x PF
set
Critical impulse time, low active power
Impulse margin time, low active power
Table 84. 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 to
0.8 x U
set
Independent time delay for overvoltage functionality at 0.8 to 1.2
x U
set
Table 85. Sudden change in current variation SCCVPTOC
Function
Operate value, overcurrent
Hold time for operate signal at 0 to 2 x Iset
Table 86. Carrier receive logic LCCRPTRC
Function
Operation mode
Independent time delay
90
Range or value
(2.0-100.0)% of SBase
<105%
0.00-1.00
(0.000-60.000) s
(0.000-60.000) s
10 ms typically at 1.2 to 0.8 x P
10 ms typically
Range or value
(1-100)% of UBase
(0.00–50.0)% of UBase
10 ms typically at 1.2 to 0.8x U
15 ms typically
(1-200)% of UBase
10 ms typically at 0.8 to 1.2 x U
15 ms typically
(0.000-60.000) s
(0.000-60.000) s
Range or value
(5-100)% of IBase
(0.000-60.000) s
Range or value
1 Out Of 2
2 Out Of 2
(0.000-60.000) s
1MRK 505 346-BEN -
Accuracy
±1.0% of S
r
-
±0.02
±0.2% or ±40 ms whichever is
greater
±0.2% or ±40 ms whichever is
greater
-
set
-
Accuracy
±0,5% of U
r
±0.5% of U at U ≤ U
r
±0.5% of U at U > U
-
set
-
±0.5% of U at U≤U
r
± 0.5% of U at U>U
-
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
r
r
r
r
ABB