M14976-1 v9
Table 76. Rate-of-change of frequency protection SAPFRC
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
GUID-E8D0EE7C-D7B8-46C3-9C0D-363FFC75DE93 v5
Table 77. Frequency accumulation protection FTAQFVR
Function
Range or value
Accuracy
Operate value, frequency high limit level at
symmetrical three phase voltage
(35.00 – 90.00) Hz
±2.0 mHz
Operatevalue, frequency low limit level at
symmetrical three phase voltage
(30.00 – 85.00) Hz
±2.0 mHz
Operate value, voltage high and low limit
for voltage band limit check
(0.0 – 200.0)% of UBase
±0.5% of U
r
at U ≤ U
r
±0.5% of U at U > U
r
Operate value, current start level
(5.0 – 100.0)% of IBase
±1.0% of I
r
or 0.01 A at I≤I
r
Independent time delay for the continuous
time limit at f
set
+0.02 Hz to f
set
-0.02 Hz
(0.0 – 6000.0) s
±0.2% or ±250 ms whichever is
greater
Independent time delay for the
accumulation time limit at f
set
+0.02 Hz to
f
set
-0.02 Hz
(10.0 – 90000.0) s
±0.2% or ±250 ms whichever is
greater
1MRK 502 074-BEN A
Generator protection REG670 2.2 and Injection equipment REX060,
REX061, REX062
Product version: 2.2.1
ABB
85
