ABB REG670 - Technical Data

Voltage
START
START
TRIP
Start
&
Trip
Output
Logic
Time integrator
Definite Time Delay
tDelay
tReset
Comparator
MinValFreqMeas
BLOCK
IEC05000735-2-en.vsdx
Frequency Comparator
f > StartFrequency
TRIP
BLKDMAGN
BLOCK
OR
BLKTRIP
IEC05000735 V2 EN
Figure 266: Simplified logic diagram for SAPTOF
10.2.8 Technical data
Table 314: SAPTOF technical data
Function
Range or value Accuracy
Operate value, start function
at symmetrical three-phase
voltage
(35.00-90.00) Hz
± 2.0 mHz
Operate time, start at f
set
-
0.02 Hz to f
set
+ 0.02 Hz
fn = 50Hz
Min. = 80 ms
Max. = 95 ms
-
fn = 60 Hz
Min. = 65 ms
Max. = 80 ms
Reset time, start at f
set
+ 0.02
Hz to f
set
- 0.02 Hz
Min. = 15 ms
Max. = 30 ms
-
Operate time, definite time
function at f
set
-0.02 Hz to f
set
+ 0.02 Hz
(0.000-60.000)s
± 0.2% ± 100 ms
whichever is greater
Reset time, definite time
function at f
set
+ 0.02 Hz to f
set
- 0.02 Hz
(0.000-60.000)s
± 0.2% ± 120 ms,
whichever is greater
Section 10 1MRK502052-UEN B
Frequency protection
552
Technical manual