Frequency protection
Table 37. 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
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 38. 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
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 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
Bay control REC650
1MRK 511 249-BEN -
Product version: 1.1
Issued: February 2011
ABB
61
Summary of Contents for REC650 ANSI
Page 1: ...Relion 650 series Bay control REC650 Product Guide...
Page 81: ...81...
