17
NV10P - Manual - 01 - 2015
TECHNICAL DATA
Pickup time
≤
0.04 s
Dropout
ratio
1.03...1.05
Dropout time
≤
0.04 s
Overshoot
time
0.03
s
Pickup
accuracy ±
1% ±
1%
U
n
/
E
n
Operate
time
accuracy
5%
or
±
10 ms
Undervoltage - 27 for electronic sensor versions
Common confi guration:
Voltage measurement type for 27 (
Utype
27)
U
ph-ph
/
U
ph-n
27 Operating logic (
Logic
27)
AND/OR
U< Element
U
< Curve type (
U
<
Curve
)
DEFINITE/INVERSE
[1]
Defi nite time
27 First threshold defi nite time (
U<
def
)
0.05...1.10
U
n
/
E
n
(step 0.01
U
n
/
E
n
)
U<
def
Operating time (
t
U
<
def
)
0.07...100.0
s
0.07...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Inverse time
27 First threshold inverse time (
U<
inv
)
0.05...1.10
U
n
/
E
n
(step 0.01
U
n
/
E
n
)
U<
inv
Operating time (
t
U
<
inv
)
0.10...100.0
s
0.10...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Element U<<
Defi nite time
27 Second threshold defi nite time (
U<<
def
)
0.05...1.10
U
n
/
E
n
(step 0.01
U
n
/
E
n
)
U<<
def
Operating time (
t
U
<<
def
)
0.07...100.0
s
0.07...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Pickup time
≤
0.04 s
Dropout
ratio
1.03...1.05
Dropout time
≤
0.04 s
Overshoot
time
0.03
s
Pickup
accuracy ±
1% ±
1%
U
n
/
E
n
Operate
time
accuracy
5%
or
±
10 ms
Positive sequence undervoltage - 27V1 for inductive VTs versions
U
1
< Element
Defi nite time
27V1 First threshold defi nite time (
U
1
<
def
) 0.05...1.10
U
n
(step 0.01
U
n
)
U
1
<
def
Operating time (
t
U1
<
def
)
0.07...100.0
s
0.07...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Pickup time
≤
0.04 s
Dropout
ratio
1.03...1.05
Dropout time
≤
0.04 s
Overshoot
time
0.03
s
Pickup
accuracy ±
1% ±
1%
U
n
Operate
time
accuracy
5%
o
±
10 ms
Positive sequence undervoltage - 27V1 for electronic sensor versions
U
1
< Element
Defi nite time
27V1 First threshold defi nite time (
U
1
<
def
) 0.05...1.10
E
n
(step 0.01
E
n
)
U
1
<
def
Operating time (
t
U1
<
def
)
0.07...100.0
s
0.07...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Pickup time
≤
0.04 s
Dropout
ratio
1.03...1.05
Dropout time
≤
0.04 s
Overshoot
time
0.03
s
Pickup
accuracy ±
1% ±
1%
E
n
Operate
time
accuracy
5%
o
±
10 ms
Note 1 The mathematical formula for INVERSE curve is: t= (0.75 ∙
t
U
<
inv
) / [1 - (
U
/
U
<
inv
)]
t = operating time (in seconds)
t
U
<
inv
= operating time setting (in seconds)
U = input voltage
U<
inv
= threshold setting