Thytronic XMR-T - Phase Overcurrent - 50;51 Side (H, L, T); Thermal Image for Line;Transformer Protection - 49 (H, L, T)

TECHNICAL DATA
23
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Definite time
First threshold definite time (I
21
>
def
) 0.10...1.00 I
n
(step 0.01 I
n
)
I
2
/ I
1
> within CLP ((I
21CLP
>
def
0.10...1.00 I
n
(step 0.01 I
n
)
Operating time (t
21
>
def
) 0.04...15000 s
0.04...9.99 s (step 0.01 s)
1...15000 s (step 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 ± 1% with I
2
and I
1
≥ 0.5 I
n
Operate time accuracy 5% ± 10 ms
— Thermal image for Line/Transformer protection - 49 (H, L, T)
Common configuration:
Initial thermal image
D q
IN
(Dth
IN
) 0.0...1.0 D q
B
(step 0.1 D q
B
)
19
Reduction factor at inrush (K
INR
) 1.0...3.0 (step 0.1)
Thermal time constant t (T ) 1...200 min (step 1 min)
CLP operating mode (Dth
CLP
Mode) OFF/ON-Element blocking/ON-Change setting
CLP activation time (t
DthCLP
) 0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
DthAL1 Element
First alarm threshold
(Dth
AL1
) 0.3...1.0 D q
B
(step 0.1 D q
B
)
DthAL2 Element
Second alarm threshold
(Dth
AL2
) 0.5...1.2 D q
B
(step 0.1 D q
B
)
Dth> Element
Trip threshold (Dth
>) 1.100...1.300 D q
B
(step 0.001 D q
B
)
Dropout ratio 0.95...0.98
Dropout time ≤ 0.05 s
Overshoot time 0.04 s
Pickup accuracy ± 0.5% with 0.1 I
n
± 0.2% with 1 I
n
Operate time accuracy 5% ± 10 ms
— Phase overcurrent - 50/51 side (H, L, T)
I
(H, L, T)
> Element
I
(H, L, T)
> Curve type (I
(H, L, T)
>
Curve
) DEFINITE,
IEC/BS A, B, C, LIT, ANSI/IEEE MI, VI, EI
RECTIFIER, I
2
t or EM
CLP operating mode (I
(H, L, T)CLP>
Mode) OFF/ON-Element blocking/ON-Change setting
CLP activation time (t
(H, L, T)CLP>
) 0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Reset time delay (t
(H, L, T)
>
RES
) 0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Definite time
First threshold definite time (I
(H, L, T)
>
def
) 0.100...40.0 I
nH, L, T
0.100...0.999 I
n
(step 0.001 I
nH, L, T
)
1.00...9.99 I
n
(step 0.01 I
nH, L, T
)
10.0...40.0 I
n
(step 0.1 I
nH, L, T
)
First threshold within CLP (I
(H, L, T)CLP>def
) 0.100...40.0 I
nH, L, T
0.100...0.999 I
n
(step 0.001 I
nH, L, T
)
1.00...9.99 I
n
(step 0.01 I
nH, L, T
)
10.0...40.0 I
n
(step 0.1 I
nH, L, T
)
Operating time (t
(H, L, T)
>
def
) 0.04...200.00 s
0.04...9.99 s (step 0.01 s)
10.0...99.9 s (step 0.1 s)
100...200 s (step 1 s)
Inverse time
9
First threshold inverse time (I
(H, L, T)
>
inv
) 0.100...20.00 I
nH, L, T
0.100...0.999 I
n
(step 0.001 I
nH, L, T
)
1.00...20.00 I
n
(step 0.01 I
nH, L, T
)
First threshold
within CLP (I
(H, L, T)CLP>inv
) 0.100...20.00 I
nH, L, T
0.100...0.999 I
n
(step 0.001 I
nH, L, T
)
1.00...20.00 I
n
(step 0.01 I
nH, L, T
)
Operating time (t
(H, L, T)
>
inv
) 0.02...60.0 s
0.02...9.99 s (step 0.01 s)
XMR-T EQUIPMENT MANUAL
Ed. 2.9 - 02/2021