Technical Data - ABB RES670 Technical Manual

Section 10
Frequency protection
BLOCK
V < IntBlockLevel
Voltage
Frequency
f > StartFrequency
BLKTRIP
ANSI16000042 V1 EN-US
Figure 108: Simplified logic diagram for SAPTOF (81)
10.2.7
10.3
312
Definite timer
tReset
tDelay

Technical data

Table 171: SAPTOF (81) technical data
Function
Trip value, pickup function at
symmetrical three-phase voltage
Trip time, pickup at f -0.02 Hz
set
to f +0.02 Hz
set
Reset time, pickup at f +0.02
set
Hz to f -0.02 Hz
set
Trip time, definite time function at
f -0.02 Hz to f +0.02 Hz
set set
Reset time, definite time function
at f +0.02 Hz to f -0.02 Hz
set set
Rate-of-change of frequency protection SAPFRC (81)
block
OR
Pickup
pickup
output
logic
trip
AND
Range or value
(35.00-90.00) Hz
fn = 50Hz
fn = 60 Hz
Min. = 15 ms
Max. = 30 ms
(0.000-60.000)s
(0.000-60.000)s
Phasor measurement unit RES670 2.2 ANSI
1MRK 511 408-UUS A
BLKDMAGN
PICKUP
&
Trip
ANSI16000042-1-en.vsdx
Accuracy
±2.0 mHz
Min. = 80 ms -
Max. = 95 ms
Min. = 65 ms
Max. = 80 ms
-
±0.2% ±100 ms
whichever is greater
±0.2% ±120 ms,
whichever is greater
Technical manual
TRIP
M14964-1 v12
IP15748-1 v4