ABB RED650 - Technical Data

IEC16000040-1-en.vsdx
RESTORE
Voltage
start
START
TRIP
block
If
[StartFreqGrad<0
AND
df/dt < StartFreqGrad]
OR
[StartFreqGrad>0
AND
df/dt > StartFreqGrad]
Then
START
U < IntBlockLevel
BLKDMAGN
Rate-of-change
of Frequency
BLOCK
OR
BLKREST
>
f > RestoreFreq
tRestore
restore
AND
BLKTRIP
trip
AND
start
Start
&
Trip
output
logic
Definite timer
tReset
tDelay
Frequency
IEC16000040 V1 EN-US
Figure 132: Simplified logic diagram for SAPFRC
10.3.7 Technical data
M14976-1 v9
Table 150: SAPFRC Technical data
Function
Range or value Accuracy
Operate value, start function (-10.00-10.00) Hz/s ±10.0 mHz/s
Operate value, restore
enable frequency
(45.00-65.00) Hz ±2.0 mHz
Definite restore time delay (0.000-60.000) s ±0.2% or ±100 ms whichever is
greater
Definite time delay for
frequency gradient trip
(0.200-60.000) s ±0.2% or ±120 ms whichever is
greater
Definite reset time delay (0.000-60.000) s ±0.2% or ±250 ms whichever is
greater
1MRK 505 394-UEN A Section 10
Frequency protection
Line differential protection RED650 2.2 IEC 281
Technical manual