Table 184:
FTAQFVR (81A) technical data
Function
Range or value
Accuracy
Trip value, frequency high limit
level at symmetrical three phase
voltage
(35.00 – 90.00) Hz
±2.0 mHz
Trip value, frequency low limit
level at symmetrical three phase
voltage
(30.00 – 85.00) Hz
±2.0 mHz
Trip value, voltage high and low
limit for voltage band limit check
(0.0 – 200.0)% of VBase
±0.5% of V
n
at V ≤ V
n
±0.5% of V at V > V
n
Trip value, current pickup level
(5.0 – 100.0)% of IBase
±1.0% of I
r
or 0.01 A at I≤I
n
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 ±200 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 ±200 ms whichever is
greater
1MRK 511 365-UUS A
Section 10
Frequency protection
Phasor measurement unit RES670 2.1 ANSI
319
Technical manual
Содержание Relion 670 Series RES670
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