Thytronic NC20 User Manual

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NC2 0 - Manual - 01 - 2015
MEASURES, LOGIC STATES AND COUNTERS
5 M E A S U R E S , L O G I C S T A T E S A N D C O U N T E R S
5 MEASURES, LOGIC STATES AND COUNTERS
Measures
Direct
Frequency (f )
RMS value of fundamental component for phase currents (I
L1
, I
L2
, I
L3
)
RMS phase currents (I
L1RMS
, I
L2RMS
, I
L3RMS
)
RMS value of fundamental component for input voltages (U
L1
, U
L2
, U
L3
)
RMS value of fundamental component for unbalance neutral current (I
N
)
Calculated
Thermal image (DTheta)
Displacement angle of I
N
with respect to I
L1
(Phi
N
)
RMS value of fundamental component for compensated neutral current (I
NC
= I
N
- I
C
)
Displacement angle of I
NC
with respect to I
L1
(Phi
NC
)
RMS value of fundamental component for calculated residual current (I
EC
)
Maximum RMS current between I
L1RMS
-I
L2RMS
-I
L3RMS
(I
LMAX-RMS
)
Minimum RMS current between I
L1RMS
-I
L2RMS
-I
L3RMS
(I
LMIN-RMS
)
Average RMS current between I
L1RMS
-I
L2RMS
-I
L3RMS
[I
L-RMS
= (I
L1RMS
+I
L2RMS
+I
L3RMS
)/3]
Maximum RMS voltage of fundamental component between U
L1
-U
L2
-U
L3
(U
LMAX
)
Average RMS voltage of fundamental component between U
L1
-U
L2
-U
L3
[U
L
= (U
L1
+U
L2
+U
L3
)/3]
Harmonic distortion factor for phase currents THD
L1
-THD
L2
-THD
L3
[THD
L1
% = 100∙√(I
L1
2
+...+I
L1-11th
2
)/I
L1
] = 100∙I
L1RMS
/I
L1
[THD
L2
% = 100∙√(I
L2
2
+...+I
L2-11th
2
)/I
L2
] = 100∙I
L2RMS
/I
L1
[THD
L3
% = 100∙√(I
L2
2
+...+I
L3-11th
2
)/I
L3
] = 100∙I
L3RMS
/I
L1
RMS value of fundamental component for unbalance phase current (I
2
)
Demand phase
RMS phase currents fi xed demand (I
L1FIX
, I
L2FIX
, I
L3FIX
)
RMS phase currents rolling demand (I
L1ROL
, I
L2ROL
, I
L3ROL
)
RMS phase currents peak demand (I
L1MAX
, I
L2MAX
, I
L3MAX
)
RMS phase currents minimum demand (I
L1MIN
, I
L2MIN
, I
L3MIN
)
Protection
For each protection threshold, the following data are available:
Start ON/OFF
Trip ON/OFF
Logic block (Block1) ON/OFF
Selective block (Block2) ON/OFF
Cold Load Pickup ON/OFF
Delayed inputs
The binary input states, acquired downstream the delay timers are available:
IN1 ON/OFF
IN2 ON/OFF
Internal states
The state of the functions assigned to binary inputs are available:
Reset LEDs ON/OFF
Profi le selection ON/OFF
Fault trigger ON/OFF
IE /IPh Block2 ON/OFF
IPh Block2 ON/OFF
IE Block2 ON/OFF
Block1 ON/OFF
Tcs1 ON/OFF
Tcs2 ON/OFF
Trip External protections ON/OFF
Reset partial counters ON/OFF
Reset CB monitoring data ON/OFF
52a ON/OFF
52b ON/OFF
Open CB ON/OFF
Close CB ON/OFF
Thermal image presetting ON/OFF
Remote trip ON/OFF
MCB VT OPEN ON/OFF
Reset TDcnt counter ON/OFF
Reset discharge timer tD ON/OFF
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Thytronic NC20 Specifications

General

Brand	Thytronic
Model	NC20
Category	Power distribution unit
Language	English