ABB REG670 - Page 598

Function Range or value Accuracy
Start time at 0 to 10 x
I
set
Min. = 5 ms
Max. = 20 ms
-
Reset time at 10 to 0
x I
set
Min. = 20 ms
Max. = 35 ms
-
Undercurrent:
Start time at 2 to 0 x
I
set
Min. = 15 ms
Max. = 30 ms
-
Reset time at 0 to 2 x
I
set
Min. = 15 ms
Max. = 30 ms
-
Overcurrent:
Inverse time
characteristics, see
table 959, 960 and
table
""
16 curve types
See table 959, 960 and table ""
Overcurrent:
Minimum operate
time for inverse
curves, step 1 - 2
(0.00 - 6000.00) s
±0.2% or ±35 ms whichever is
greater
Voltage level where
voltage memory
takes over
(0.0 - 5.0)% of UBase
±0.5% of U
r
Start overvoltage,
step 1 - 2
(2.0 - 200.0)% of UBase ±0.5% of U
r
at U ≤ U
r
±0.5% of U at U > U
r
Start undervoltage,
step 1 - 2
(2.0 - 150.0)% of UBase ±0.5% of U
r
at U ≤ U
r
±0.5% of U at U > U
r
Independent time
delay, overvoltage at
0.8 to 1.2 x U
set
, step
1 - 2
(0.00 - 6000.00) s
±0.2% or ±35 ms whichever is
greater
Independent time
delay, undervoltage
at 1.2 to 0.8 x U
set
,
step 1 - 2
(0.00 - 6000.00) s
±0.2% or ±35 ms whichever is
greater
Overvoltage:
Start time at 0.8 to 1.2
x U
set
Min. = 15 ms
Max. = 30 ms
-
Reset time at 1.2 to
0.8 x U
set
Min. = 15 ms
Max. = 30 ms
-
Undervoltage:
Start time at 1.2 to 0.8
x U
set
Min. = 15 ms
Max. = 30 ms
-
Reset time at 1.2 to
0.8 x U
set
Min. = 15 ms
Max. = 30 ms
-
Overvoltage:
Inverse time
characteristics, see
table 970
4 curve types
See table 970
Undervoltage:
Table continues on next page
Section 11 1MRK502052-UEN B
Multipurpose protection
592
Technical manual