TECHNICAL DATA
19
NG10 - Manual - 04 - 2022
3.8 CONTROL AND MONITORING
Trip Circuit Supervision side H and side L - 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:
• BLIN 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:
• BLOUT 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)
Circuit Breaker supervision
Circuit breaker diagnostic
Number of CB trips threshold (CB N.Open) 0...10000
(step 1)
Cumulative CB tripping currents threshold (CB SumI) 0....5000 I
n
(step 1 I
n
)
Cumulative CB tripping I
2
t threshold (CB SumI^2t) 0....5000 (I
n
)
2
∙s
(step 1 I
n
2
∙s)
Circuit Breaker opening time for I^2t calculation (CB t
break
) 0.05...1.00 s (step 0.01 s)
Circuit Breaker maximum allowed opening time (CB t
break
>) 0.05...1.00 s (step 0.01 s)
CT supervision - 74CT side H
74CT(H) Threshold (S
(H)
<) 0.10...0.95
(step 0.01)
74CT(H) Overcurrent threshold 74CT (I
(H)*
) 0.10...1.00 I
nH
(step 0.01 I
nH
)
S
(H)
< Operating time (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 S
(H)
< ± 1% with 0.1 I
nH
, ± 0.5% with 1 I
nH
Pickup accuracy I
(H)*
± 0.5% with 0.1 I
nH
, ± 0.2% with 1 I
nH
Operate time accuracy 5% or ± 10 ms
CT supervision - 74CT side L
74CT(L) Threshold (S
(L)
<) 0.10...0.95
(step 0.01)
74CT(L) Overcurrent threshold 74CT (I
(L)*
) 0.10...1.00 I
nL
(step 0.01 I
nL
)
S
(L)
< Operating time (t
S(L)
<) 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
(L)*
pickup 0.95...0.98
Dropout time ≤ 0.05 s
Pickup accuracy S
(L)
< ± 1% with 0.1 I
nL
, ± 0.5% with 1 I
nL
Pickup accuracy I
(L)*
± 0.5% with 0.1 I
nL
, ± 0.2% with 1 I
nL
Operate time accuracy 5% or ± 10 ms
Pilot wire diagnostic
• BLOUT1 Diagnostic pulse period (PulseBLOUT1) OFF-0.1-1-5-10-60-120 s
• BLIN1 Diagnostic pulse control time interval (PulseBLIN1) OFF-0.1-1-5-10-60-120 s
Demand measures
• Fix on demand period (t
FIX)
1...60 min (step 1 min)
• Rolling on demand period (t
ROL)
1...60 min (step 1 min)
• Number of cycles for rolling on demand (N.
ROL)
1...24 (step 1)
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