ABB REQ650 - Page 72

Table 42. Loss of voltage check LOVPTUV
Function Range or value Accuracy
Operate voltage (0–100)% of UBase ± 0.5% of U
r
Reset ratio <105% -
Pulse timer (0.050–60.000) s ± 0.5% ± 25 ms
Timers (0.000–60.000) s ± 0.5% ± 25 ms
Frequency protection
Table 43. Under frequency protection SAPTUF
Function Range or value Accuracy
Operate value, start function (35.00-75.00) Hz ± 2.0 mHz
Operate value, restore frequency (45 - 65) Hz ± 2.0 mHz
Reset ratio <1.001 -
Operate time, start function At 50 Hz: 200 ms typically at f
set
+0.5 Hz to
f
set
-0.5 Hz
At 60 Hz: 170 ms typically at f
set
+0.5 Hz to
f
set
-0.5 Hz
-
Reset time, start function At 50 Hz: 60 ms typically at f
set
-0.5 Hz to f
set
+0.5 Hz
At 60 Hz: 50 ms typically at f
set
-0.5 Hz to f
set
+0.5 Hz
-
Operate time delay (0.000-60.000)s <250 ms
Restore time delay (0.000-60.000)s <150 ms
Table 44. Overfrequency protection SAPTOF
Function
Range or value Accuracy
Operate value, start function (35.00-75.00) Hz ± 2.0 mHz at
symmetrical three-
phase voltage
Reset ratio >0.999 -
Operate time, start function At 50 Hz: 200 ms typically at f
set
-0.5 Hz to
f
set
+0.5 Hz
At 60 Hz: 170 ms typically at f
set
-0.5 Hz to
f
set
+0.5 Hz
-
Reset time, start function At 50 and 60 Hz: 55 ms typically at f
set
+0.5
Hz to f
set
-0.5 Hz
-
Timer (0.000-60.000)s <250 ms
Breaker protection REQ650 1MRK 505 283-BEN -
Product version: 1.2
72 ABB