Underfrequency Protection Saptuf; Overfrequency Protection Saptof - ABB REC670 Product Manual

Bay control version 2.2
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Bay control REC670 2.2
Product version: 2.2.1
Frequency protection
Table 56. Underfrequency protection SAPTUF
Function
Operate value, start function, at symmetrical three
phase voltage
Operate time, start at f
+ 0.02 Hz to f
set
Reset time, start at f
- 0.02 Hz to f
set
Operate time, definite time function at f
to f
- 0.02 Hz
set
Reset time, definite time function at f
f
+ 0.02 Hz
set
Voltage dependent time delay
Exponent
é
-
ù
U UMin
(
=
×
t
tMax tMin
ê
ú
ë
-
û
UNom UMin
EQUATION1182 V1 EN-US
U=U
measured
Table 57. Overfrequency protection SAPTOF
Function
Operate value, start function at symmetrical three-phase voltage
Operate time, start at f
-0.02 Hz to f
set
Reset time, start at f
+0.02 Hz to f
set
Operate time, definite time function at f
Reset time, definite time function at f
74
Range or value
(35.00-75.00) Hz
- 0.02 Hz
set
fn = 50 Hz
fn = 60 Hz
+ 0.02 Hz
Min. = 15 ms
set
Max. = 30 ms
+ 0.02 Hz
(0.000-60.000)s
set
- 0.02 Hz to
(0.000-60.000)s
set
Settings:
UNom=(50-150)% of U
UMin=(50-150)% of U
Exponent=0.0-5.0
tMax=(0.010–60.000)s
tMin=(0.010–60.000)s
)
-
+
tMin
+0.02 Hz
set
-0.02 Hz
set
-0.02 Hz to f
+0.02 Hz
set
set
+0.02 Hz to f
-0.02 Hz
set
set
M13360-1 v15
Accuracy
±2.0 mHz
Min. = 80 ms
Max. = 95 ms
Min. = 65 ms
Max. = 80 ms
±0.2% or ±100 ms whichever is greater
±0.2% or ±120 ms whichever is greater
±1.0% or ±100 ms whichever is greater
base
base
M14964-1 v12
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
1MRK 511 404-BEN A
-
-
(Equation 3)
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
ABB

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