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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