Thytronic XMR-D - Directional Phase Overcurrent - 67; High Impedance Restricted Earth Fault - 64 REF; Maximum Number of Startings (Restart Inhibition) - 66; Negative Sequence Overvoltage - 59 V2

38
TECHNICAL DATA
Pickup accuracy with calculated residual voltage(U
EC
) ± 1% with 0.01U
ECn
± 0.5% with 0.1U
ECn
Operate time accuracy 5% ± 10 ms
— Negative sequence overvoltage - 59V2
U
2
> Element
Definite time
First threshold definite time (U
2
>
def
) 0.01...0.50 E
n
(step 0.01 E
n
)
Operating time (t
U2
>
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 0.95...0.98
Dropout time ≤ 0.05 s
Overshoot time 0.04 s
Pickup accuracy ± 5% with 0.01 U
n
± 0.3% with 0.15 U
n
Operate time accuracy 5% ± 10 ms
— Rotor earth fault (64F)
R
FAL
< Element
First threshold definite time (R
FAL
<
def
) 0.50...5.00 kW (step 0.01 kW )
Operating time (t
RF
<
def
) 0.07...100.0 s
0.07...0.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
R
FAL
<< Element
Second threshold definite time (R
FAL
<<
def
) 0.50...5.00 kW (step 0.01 kW )
Operating time (t
RF
<<
def
) 0.07...100.0 s
0.07...0.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Pickup time ≤ 0.06 s
Dropout ratio 1.02...1.05 with resistive load
1.01...1.03 with parallel C=2 mF
Reset time ≤ 0.04 s
Overshoot time 0.03 s
Reference values rest: R=∞
trip: 2/3 R
FAL
<, 2/3 R
F
<<
Pickup accuracy ± 3% ± 20 W with resistive load
± 5% with parallel C=2 mF
Operate time accuracy 5% or ± 10 ms
— High impedance restricted earth fault - 64REF
Minimum threshold 64REF (I
REF
>) 0.05...2.00 I
En1
(step 0.01 I
En1
)
Intentional delay 64REF (t
REF
>) 0.03...60.00 s (step 0.01 s)
— Maximum number of startings (Restart inhibition) - 66
Type of control for 66 (Type66)
30
NST-TST
Control window (t
C
) 1...60 min (step 1 min)
N
ST
(Starts inside t
C
) 1...30 (step 1)
T
ST
(Cumulative start time inside t
C
) 1...600 s (step 1 s)
Inhibition time (t
IN
) 0...60 min (step 1 min)
— Directional phase overcurrent - 67
Common configuration
Operating mode (Mode67
) I /I ∙cos
Operating logic (Logic
67) 1/3 / 2/3
Operating from 74VT internal (74VTint67) OFF/Block/Not directional
Operating from 74VT external (74VText67) OFF/Block/Not directional
Angular half sector (Beta67) 0...90 gr (step 1 gr)
I
PD
> Element
ICurve type (I
PD
>Curve) DEFINITE
IEC/BS A, B, C, LIT,
ANSI/IEEE MI, VI, EI
RECTIFIER, I
2
t or EM
CLP operating mode (I
PDCLP
> Mode) OFF/ON-Element blocking/ON-Change setting
CLP activation time (t
PDCLP>
) 0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Note 30 With NST setting the number of starting is computed; with TST setting the cumulative time of starting is computed
XMR-D EQUIPMENT MANUAL
Ed. 2.9 - 02/2021