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Frequency
f > StartFrequency
Voltage
pickup
TRIP
V < IntBlockLevel
block
BLOCK
OR
Definite timer
tReset
tDelay
ANSI16000042-1-en.vsdx
trip
PICKUP
BLKDMAGN
BLKTRIP
AND
Pickup
&
Trip
output
logic
ANSI16000042 V1 EN-US
Figure 108:
Simplified logic diagram for SAPTOF (81)
10.2.7
Technical data
M14964-1 v12
Table 171:
SAPTOF (81) technical data
Function
Range or value
Accuracy
Trip value, pickup function at
symmetrical three-phase voltage
(35.00-90.00) Hz
±2.0 mHz
Trip time, pickup 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, pickup at f
set
+0.02
Hz to f
set
-0.02 Hz
Min. = 15 ms
Max. = 30 ms
-
Trip 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
10.3
Rate-of-change of frequency protection SAPFRC (81)
IP15748-1 v4
Section 10
1MRK 511 408-UUS A
Frequency protection
312
Phasor measurement unit RES670 2.2 ANSI
Technical manual
Содержание Relion RES670
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