Thytronic XMR-P 4l+4V - Circuit Breaker Supervision; CT Supervision - 74 CT; Demand Measures; Internal Selective Block - BLOCK4

48
TECHNICAL DATA
• 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
Negative sequence overvoltage threshold (U
2VT>
) 0.05...0.50 E
n
(step 0.01 E
n
)
Negative sequence overcurrent threshold (I
2VT>
) 0.05...0.50 I
n
(step 0.01 I
n
)
Phase undervoltage threshold (U
VT<
) 0.05...0.50 E
n
(step 0.01 E
n
)
Minimum change of current threshold (D
IVT<
) 0.05...0.50 I
n
(step 0.01 I
n
)
Alarm time delay (t
VT-AL
) 0.0...10.0 s (step 0.1 s)
Undercurrent inhibition for CTs input
versions
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
)
— CT supervision - 74CT
Threshold (S<) 0.10...0.95 (step 0.01)
Overcurrent threshold (I
*
) 0.10...1.00 I
n
(step 0.01 I
n
)
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 ≤ 0.04 s
Pickup accuracy I
*
± 0.5% with 0.1 I
n
± 0.2% with 1 I
n
Operate time accuracy 5% ± 10 ms
— 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)
12
Format COMTRADE
Recording mode circular
Sampling rate 32 samples / cycle
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
E
, u
E
, u
12
, u
23
,
u
31
, u
L4
Note 12 For the DFR function a licence is required; call Thytronic for purchasing.
XMR-D EQUIPMENT MANUAL
Ed. 2.9 - 02/2021