ABB Relion 670 series - Technical data; Overfrequency protection SAPTOF (81)

9.1.6 Technical data
Table 288: SAPTUF (81) technical data
Function Range or value Accuracy
Operate value, pickup function (35.00-75.00) Hz ± 2.0 mHz
Operate time, pickup function 100 ms typically -
Reset time, pickup function 100 ms typically -
Operate time, definite time function (0.000-60.000)s ± 0.5% ± 10 ms
Reset time, definite time function (0.000-60.000)s ± 0.5% ± 10 ms
Voltage dependent time delay
( )
_ _ _
Exponent
V VMin
t t MaxTripDelay t MinTripDelay t MinTripDelay
VNom VMin
-
= × - +
-
é ù ê ú ë û
EQUATION1559 V1 EN (Equation 148)
V=V
measured
Settings:
VNom=(50-150)% of V
base
VMin=(50-150)% of V
base
Exponent=0.0-5.0
t_MaxTripDelay=(0.000-60.000
)s
t_MinTripDelay=(0.000-60.000)
s
5% + 200 ms
9.2 Overfrequency protection SAPTOF (81)
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Overfrequency protection SAPTOF
f >
SYMBOL-O V1 EN
81
1MRK505222-UUS C Section 9
Frequency protection
557
Technical reference manual