Thytronic NC20 User Manual

23
NC2 0 - Manual - 01 - 2015
TECHNICAL DATA
3.8 CONTROL AND MONITORING
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...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)
CT supervision - 74CT
74CT Threshold (S<) 0.10...0.95 (step 0.01)
74CT Overcurrent threshold (I
*
) 0.10...1.00 I
n
(step 0.01 I
n
)
S< Operating time delay (t
S
<) 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
*
pickup 0.95...0.98
Dropout time ≤ 0.05 s
Pickup accuracy S< ± 1% with 0.1 I
n
, ± 0.5% with 1 I
n
Pickup accuracy I
*
± 0.5% with 0.1 I
n
, ± 0.2% with 1 I
n
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)
Oscillography (DFR)
[1]
Format COMTRADE
Recording mode
circular
Sampling rate
> 1 kHz
Trigger setup:
Pre-trigger time
0.05...1.00 s (step 0.01 s)
Post-trigger time
0.05...60.00 s (step 0.05 s)
Set sample channels
i
L1
, u
L1
, i
L2
, u
L2
, i
L3
, u
L3
, i
N
Set analog channels
Analog 1...Analog 12 Frequency, I
L1
, I
L2
, I
L3
, I
EC
, I
N
, I
NC
,
I
L1rms
, I
L2rms
, I
L3rms
, U
L1
, U
L2
, U
L3
,
φ
N
(Phi
N
), φ
NC
(Phi
NC
), T1...T8
[2]
Set digital channels:
Digital 1...Digital 12 K1... K6, K7...K10,
IN1, IN2, IN3...IN42
[3]
Note 1 For the DFR function a licence is required; call Thytronic for purchasing.
Note 2 The measures of temperature are available only when the MPT module on Thybus is enabled (eigth Pt100 inputs)
Note 3 Output relay K7...K10 and binary input IN3...IN42 states are available only when the concerning I/O circuits are implemented (MRI and MID16
modules on Thybus)
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Thytronic NC20 Specifications

General

Brand	Thytronic
Model	NC20
Category	Power distribution unit
Language	English