ABB RELION REL670, Руководство по эксплуатации продукта

Страница: 86 / 150

Table 68. Voltage differential protection VDCPTOV
Function Range or value Accuracy
Voltage difference for alarm and trip (2.0–100.0) % of
UBase
±0.5% of U
r
Under voltage level (1.0–100.0) % of
UBase
±0.5% of U
r
Independent time delay for voltage differential
alarm at 0.8 x UDAlarm to 1.2 x UDAlarm (0.000–60.000)s ±0.2% or ±40 ms whichever is greater
Independent time delay for voltage differential
trip at 0.8 x UDTrip to 1.2 x UDTrip (0.000–60.000)s ±0.2% or ±40 ms whichever is greater
Independent time delay for voltage differential
reset at 1.2 x UDTrip to 0.8 x UDTrip (0.000–60.000)s ±0.2% or ±40 ms whichever is greater
Table 69. Loss of voltage check LOVPTUV
Function Range or value Accuracy
Operate voltage (1–100)% of UBase ±0.5% of U
r
Pulse timer when disconnecting
all three phases (0.050–60.000) s ±0.2% or ±15 ms whichever is greater
Time delay for enabling the
functions after restoration (0.000–60.000) s ±0.2% or ±35 ms whichever is greater
Operate time delay when
disconnecting all three phases (0.000–60.000) s ±0.2% or ±35 ms whichever is greater
Time delay to block when all three
phase voltages are not low (0.000–60.000) s ±0.2% or ±35 ms whichever is greater
Table 70. Radial feeder protection PAPGAPC
Function Range or value Accuracy
Residual current detection (10 - 150)% of IBase ±1.0% of Ir at I ≤ Ir
±1.0% of I at I > Ir
Reset ratio >95% at (50 - 150)% of IBase -
Operate time, residual current detection at 0 to 2
x I
set
Min. = 15 ms -
Max. = 30 ms
Independent time delay to operate, residual
current detection at 0 to 2 x I
set
(0.000 - 60.000) s ±0.2% or ±40 ms whichever is greater
Voltage based phase selection (30 - 100)% of UBase ±1.0% of U
r
Reset ratio <115% -
Operate time, voltage-based phase selection at
1.2 x U
set
to 0.8 x U
set
Min. = 15 ms -
Max. = 30 ms
Independent time delay to operate, voltage-
based phase selection at 1.2 x U
set
to 0.8 x U
set
(0.000 – 60.000) s ±0.2% or ±40 ms whichever is greater
1MRK 506 372-BEN -
Line distance protection REL670 2.2
Product version: 2.2
86 ABB