Thytronic Pro-N NVA100X-D

38
NVA100X-D - Manual - 02 - 2016
TECHNICAL DATA
3.8 CONTROL AND MONITORING
Second harmonic restraint - 2ndh-REST
Second harmonic restraint threshold (I
2ndh
>) 10...50 % (step 1 %)
I
2ndh
> reset time delay (t
2ndh>RES)
0...100.0 s
0.00...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 I
2ndh
> ± 1% with 0.1 I
n
, ± 0.5% with 1 I
n
Operate time accuracy 5% ± 10 ms
Trip Circuit Supervision - 74TCS
Operate time:
One binary input supervision 40 s
Two binary inputs supervision 2 s
Reset time delay:
One binary input supervision 6 s
Two binary inputs supervision 0.6 s
Selective block - BLOCK2
Selective block IN
BLIN1 Selective block operating mode (ModeBLIN1) OFF-ON IPh/IE-ON IPh-ON IE
BLIN maximum activation time for phase protections (t
B-IPh)
0.10...10.00 s (step 0.01 s)
BLIN maximum activation time for ground protections (t
B-IE)
0.10...10.00 s (step 0.01 s)
Selective block OUT
BLOUT1 Selective block operating mode (ModeBLOUT1) OFF-ON IPh/IE-ON IPh-ON IE
BLOUT Dropout time for phase protections (t
F-IPh
) 0.00...1.00 s (step 0.01 s)
BLOUT Dropout time for ground protections (t
F-IE
) 0.00...1.00 s (step 0.01 s)
BLOUT Dropout time for ground and phase protections (t
F-IPh/IE
) 0.00...1.00 s (step 0.01 s)
Internal selective block - BLOCK4
Output internal selective block dropout time for phase protections (t
FI-IPh
)
0.00...10.00 s (step 0.01 s)
Output internal selective block dropout time for ground protections (t
FI-IE
)
0.00...10.00 s (step 0.01 s)
Circuit Breaker supervision
Circuit breaker diagnostic
Number of CB trips threshold (N.Open) 0...10000 (step 1)
Cumulative CB tripping currents threshold (SumI) 0....5000 I
n
(step 1 I
n
)
Cumulative CB tripping I
2
t threshold (SumI^2t) 0....5000 (I
n
)
2
∙s (step 1 I
n
2
∙s)
Circuit Breaker opening time for I^2t calculation (t
break
) 0.05...1.00 s (step 0.01 s)
Circuit Breaker maximum allowed opening time (t
break
>) 0.05...1.00 s (step 0.01 s)
VT supervision - 74VT
74VT Negative sequence overvoltage threshold (U
2VT>
) 0.05...0.50 E
n
(step 0.01 E
n
)
74VT Negative sequence overcurrent threshold (I
2VT>
) 0.05...0.50 I
n
(step 0.01 I
n
)
74VT Phase undervoltage threshold (U
VT<
) 0.05...0.50 E
n
(step 0.01 E
n
)
74VT Minimum change of current threshold (D
IVT<
) 0.05...0.50 I
n
(step 0.01 I
n
)
74VT Alarm time delay (t
VT-AL
) 0.0...10.0 s (step 0.1 s)
Undercurrent inhibition threshold (I
VT<
) 0.100...40.0 I
n
0.100...0.999 I
n
(step 0.001 I
n
)
1.00...9.99 I
n
(step 0.01 I
n
)
10.0...40.0 I
n
(step 0.1 I
n
)
Pickup accuracy for negative sequence voltage thresholds ± 5% con 0.01 U
n
± 0.5% with 0.15 U
n
Pickup accuracy for negative sequence current thresholds ± 1% with I
2
= 0.5 I
n
± 1% with I
2
= 1 I
n
Operate time accuracy 5% or ± 10 ms
CT supervision - 74CT side H
74CT Threshold (S
(H)
<) 0.10...0.95 (step 0.01)
74CT(H) Overcurrent threshold (I
(H)*
) 0.10...1.00 I
nH
(step 0.01 I
nH
)
Operating time delay (t
S(H)
<) 0.03...200 s
0.03...9.99 s (step 0.01 s)
10.0...99.9 s (step 0.1 s)
100...200 s (step 1 s)
Dropout ratio for the I
(H)*
pickup 0.95...0.98
Dropout time ≤ 0.05 s
Pickup accuracy I
(H)*
± 0.5% with 0.1 I
nH
, ± 0.2% with 1 I
nH
Pickup accuracy I
*
± 0.5% with 0.1 I
nH
, ± 0.2% with 1 I
nH
Operate time accuracy 5% ± 10 ms
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