Thytronic NV10P - Undervoltage - 27 for Electronic Sensor Versions; Positive Sequence Undervoltage - 27 V1 for Inductive Vts Versions; Positive Sequence Undervoltage - 27 V1 for Electronic Sensor Versions

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 (Utype27) U
ph-ph
/U
ph-n
27 Operating logic (Logic27) 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
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