ABB Relion RES670 Product Manual page 54

Phasor measurement unit RES670 2.1 IEC
Frequency protection
Table 35. Underfrequency protection SAPTUF
Function
Operate value, start function, at symmetrical
three phase voltage
Operate time, start at f + 0.02 Hz to f
set
Hz
Reset time, start at f - 0.02 Hz to f
set
Operate time, definite time function at f
0.02 Hz to f - 0.02 Hz
set
Reset time, definite time function at f
Hz to 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 36. 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
54
Range or value
(35.00-75.00) Hz
- 0.02
set
fn = 50 Hz
fn = 60 Hz
+ 0.02 Hz Min. = 15 ms
set
Max. = 30 ms
+ (0.000-60.000)s
set
- 0.02 (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
set set
+0.02 Hz to f -0.02 Hz
set set
M13360-1 v13
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 ±120 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
+0.02 Hz (0.000-60.000)s
(0.000-60.000)s
1MRK 511 367-BEN D
-
-
(Equation 2)
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