Thytronic XMR-D - Thermometric Probes - 26; Undervoltage - 27

TECHNICAL DATA
23
(U/f)> Element
Setpoints
Curve type ((U/f )>
Curve
) DEFINITE, IEC/BS A, B, C
Reset time delay (t
P2
>
RES
) 0.00...1000 s
0.00...9.99 s (step 0.01 s)
10.0...99.9 s (step 0.1 s)
100...1000 s (step 1 s)
Definite time
First threshold definite time (U/f )>
def
0.50...2.00 U
n
/f
n
(step 0.01 U
n
/f
n
)
Operating time (t
(U/f)
>
def
) 0.10...100.0 s
0.10...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Inverse time
First threshold inverse time (U/f )>
inv
0.50...2.00 U
n
/f
n
(step 0.01 U
n
/f
n
)
Operating time (t
(U/f)
>
def
) 0.10...60.0 s
11
0.10...9.99 s (step 0.01 s)
10.0...60.0 s (step 0.1 s)
(U/f)>> Element
Definite time
First threshold definite time (U/f )>>
def
0.50...2.00 U
n
/f
n
(step 0.01 U
n
/f
n
)
Operating time (t
(U/f)
>>
def
) 0.10...100.0 s
0.10...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Pickup time ≤ 0.04 s
Dropout ratio 0.95...0.98
Dropout time ≤ 0.05 s
Overshoot time 0.04 s
Pickup accuracy ± 0.5% on voltage measures
± 5 mHz on frequency measures
Operate time accuracy 5% ± 10 ms
— Thermometric probes - 26
12
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 configuration:
Voltage measurement type (Utype27)
13
U
ph-ph
/U
ph-n
Operating logic (Logic27) AND/OR
U< Element
Curve type (U<
Curve
) DEFINITE/INVERSE
14
Definite time
First threshold definite 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
Definite time
Second threshold definite 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
Nota 12 Optional function
Note 13 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 14 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 (referred to U/U<
inv
= 0.25 )
U : input voltage
U<
inv
: threshold setting
XMR-D EQUIPMENT MANUAL
Ed. 2.9 - 02/2021