ABB RELION 670 Series Product Manual page 64

Bay control REC670 2.1 IEC
Voltage protection
Table 44. Two step undervoltage protection UV2PTUV
Function
Operate voltage, low and high step
Absolute hysteresis
Internal blocking level, step 1 and step 2
Inverse time characteristics for step 1 and step 2, see
table 146
Definite time delay, step 1 at 1.2 to 0 x U
Definite time delay, step 2 at 1.2 to 0 x U
Minimum operate time, inverse characteristics
Operate time, start at 2 to 0 x U
Reset time, start at 0 to 2 x U
Operate time, start at 1.2 to 0 x U
Reset time, start at 0 to 1.2 x U
Critical impulse time
Impulse margin time
64
set
set
set
set
set
set
M13290-1 v14
Range or value
UBase
(1.0–100.0)% of
UBase
(0.0–50.0)% of
UBase
(1–50)% of
-
(0.00-6000.00) s
(0.000-60.000) s
(0.000–60.000) s
Min. = 15 ms
Max. = 30 ms
Min. = 15 ms
Max. = 30 ms
Min. = 5 ms
Max. = 25 ms
Min. = 15 ms
Max. = 35 ms
5 ms typically at 1.2 to 0 x U
15 ms typically
1MRK 511 361-BEN D
Accuracy
±0.5% of U
r
±0.5% of U
r
±0.5% of U
r
See table 146
±0.2% or ±40ms whichever is
greater
±0.2% or ±40ms whichever is
greater
±0.5% or ±40ms whichever is
greater
-
-
-
-
-
set
-
ABB