TECHNICAL DATA
19
NVA100X-D - Manual - 02 - 2016
Thermometric probes - 26
[1]
Alarm ThAL1...8:
Alarm threshold (Th
AL1...8
) 0...200 °C
Operate time (tTh
AL1...8
) 0....100 s
Trip Th>1...8:
Trip threshold (Th>
1...8
) 0...200 °C
Operate time (tTh>
1...8
) 0....100 s
Undervoltage - 27
Common confi guration:
Voltage measurement type (Utype27)
[2]
U
ph-ph
/U
ph-n
Operating logic (Logic27) AND/OR
U< Element
Curve type (U<
Curve
) DEFINITE/INVERSE
[3]
Defi nite time
First threshold defi nite time (
U
<
def
) 0.05...1.10 U
n
/E
n
(step 0.01 U
n
/E
n
)
Operating time (t
U
<
def
) 0.03...100.0 s
0.03...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Inverse time
First threshold inverse time (
U
<
inv
) 0.05...1.10 U
n
/E
n
(step 0.01 U
n
/E
n
)
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)
U<< Element
Defi nite time
Second threshold defi nite time (
U
<<
def
) 0.05...1.10 U
n
/E
n
(step 0.01 U
n
/E
n
)
Operating time (t
U
<<
def
) 0.03...100.0 s
0.03...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 ≤ 0.05 s
Overshoot time 0.04 s
Pickup accuracy ± 0.5% with U
n
/E
n -
± 0.2% with 1U
n
/E
n
Operate time accuracy 5% or ± 10 ms
Positive sequence undervoltage - 27V1
U
1
< Element
Defi nite time
First threshold defi nite time (U
1
<
def
) 0.05...1.10 E
n
(step 0.01 E
n
)
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 ≤ 0.05 s
Overshoot time 0.04 s
Pickup accuracy ± 4% with 0.01U
n
, ± 0.3% with 0.15U
n
Operate time accuracy 5% or ± 10 ms
Directional active overpower 32P
P
1> Element
Setpoints
Tripping direction (P
1
>
DIR
)
P Forward/P Reverse/P Forward-Reverse
Reset time delay (t
P1
>
RES
)
0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Defi nite time
First threshold defi nite time (
P
1>
def
) 0.01...1.50 P
n
Operating time (t
P1
>
def
) 0.07...100.0 s
P
2> Element
Setpoints
Tripping direction (P
2
>
DIR
)
P Forward/P Reverse/P Forward-Reverse
Reset time delay (t
P2
>
RES
)
0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Nota 1 Optional function
Note 2 With U
ph-ph
setting all thresholds are in p.u. U
n
, with U
ph-n
setting all thresholds are in p.u E
n
Note 3 The mathematical formula for INVERSE curve is: t= (0.75 ∙ t
U
<
inv
) / [1 - (U/U<
inv
)], where:
t : operating time (in seconds), t
U
<
inv
: operating time setting (referred to U/U<
inv
= 0.25 ), U : input voltage, U<
inv
: threshold setting
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