Thytronic NV10P - Underfrequency (81 U); Overfrequency (81 O)

21
NV10P - Manual - 01 - 2015
TECHNICAL DATA
Underfrequency (81U)
f< Element
Defi nite time
81U First threshold defi nite time (f<
def
) 0.800...1.000 f
n
(step 0.001 f
n
)
f<
def
Operating time (t
f
<
def
) 0.05...100.0 s
0.05...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Voltage control
f< Control enable (f<&) ON/OFF
f< Controlled by U
E
>> start (f<&UE>>) ON/OFF
f< Controlled by digital input (f<&DIGIN) ON/OFF
f< Controlled by U
1
< start (f<&27V1) ON/OFF
f< Controlled by U
2
> start (f<&59V2) ON/OFF
f< Controlled by U< start (f<&U<) ON/OFF
f< Controlled by 61850 network no link (f<&rete61850-KO) ON/OFF
f<& Reset time delay (f<&res)
0.00...200.0 s
0.00...9.99 s (step 0.01 s)
10.0...200.0 s (step 0.1 s)
f<< Element
Defi nite time
81U Second threshold defi nite time (f<<
def
) 0.800...1.000 f
n
(step 0.001 f
n
)
f<
def
Operating time (t
f
<
def
) 0.05...100.0 s
0.05...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
f<< Reduced Operating time
(t
cf
<<
def
) 0.07...10.00 s (step 0.01 s)
t
cf
<< Activation time (t
atcf
<<) 1...60 s (step 1 s)
f<<< Element
Defi nite time
81U Third threshold defi nite time (f<<<
def
) 0.800...1.000 f
n
(step 0.001 f
n
)
f<
def
Operating time (t
f
<
def
) 0.05...100.0 s
0.05...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
f<<<< Element
Defi nite time
81U Fourth threshold defi nite time (f<<<<
def
) 0.800...1.000 f
n
(step 0.001 f
n
)
f<
def
Operating time (t
f
<
def
) 0.05...100.0 s
0.05...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Pickup time ≤ 0.03 s
Dropout ratio ≤ 1.002
Dropout time ≤ 0.04 s
Overshoot time 0.04 s
Pickup accuracy ± 20 mHz
Operate time accuracy 1.5% ± 10 ms
[1]
Overfrequency (81O)
f> Element
Defi nite time
81O First threshold defi nite time (f>
def
) 1.000....1.200 f
n
(step 0.001 f
n
)
f>
def
Operating time (t
f
>
def
) 0.05...100.00 s
0.05...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Voltage control
f> Control enable (f>&) ON/OFF
f> Controlled by U
E
>> start (f>&UE>>) ON/OFF
f> Controlled by digital input (f>&DIGIN) ON/OFF
f> Controlled by U
1
< start (f>&27V1) ON/OFF
f> Controlled by U
2
> start (f>&59V2) ON/OFF
f> Controlled by U< start (f>&U<) ON/OFF
f> Controlled by 61850 network no link (f>&rete61850-KO) ON/OFF
f>& Reset time delay (f>&res)
0.00...200.0 s
0.00...9.99 s (step 0.01 s)
10.0...200.0 s (step 0.1 s)
f>> Element
Defi nite time
81O Second threshold defi nite time (f>>
def
) 1.000....1.200 f
n
(step 0.001 f
n
)
f>>
def
Operating time (t
f
>>
def
) 0.05...100.00 s
0.05...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Note 1: 1.5% ± 15 ms with operate time setting = 0.05 s
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