Thytronic NA11 User Manual

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NA11 - Manual - 02 - 2009
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
Frequency (f )
RMS value of fundamental component for phase currents (I
L1
, I
L2
, I
L3
)
RMS value of fundamental component for measured residual current (I
E
)
RMS value of fundamental component for calculated residual current (I
Ec
)
[1]
Calculated
Maximum current between I
L1
-I
L2
-I
L3
(I
Lmax
)
Minimum current between I
L1
-I
L2
-I
L3
(I
Lmin
)
Average current between I
L1
-I
L2
-I
L3
(I
L
)
2nd harmonic
Second harmonic phase currents (I
L1-2nd
, I
L2-2nd
, I
L3-2nd
)
Maximum of the second harmonic phase currents/ fundamental component percentage ratio I
-2nd
/I
L
(I
-2nd
/I
L
)
3rd harmonic
Third harmonic phase currents (I
L1-3rd
, I
L2-3rd
, I
L3-3rd
)
Third harmonic of residual current
[2]
(I
E-3rd
)
4th harmonic
Fourth harmonic phase currents (I
L1-4th
, I
L2-4th
, I
L3-4th
)
5th harmonic
Fifth harmonic phase currents (I
L1-5th
, I
L2-5th
, I
L3-5th
)
Demand phase
Phase fi xed currents demand (I
L1FIX
, I
L2FIX
, I
L3FIX
)
Phase rolling currents demand (I
L1ROL
, I
L2ROL
, I
L3ROL
)
Phase peak currents demand (I
L1MAX
, I
L2MAX
, I
L3MAX
)
Phase minimum currents 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
INx 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
Remote trip ON/OFF
Reset on demand measures ON/OFF
Auto-reclose enable ON/OFF
Block auto-reclose ON/OFF
Note 1 The computed residual current is available for NA11 protection relays equipped with LPCT sensor inputs
Note 2 The third harmonic component of the residual current is available for NA11 protection relays equipped with CT inputs
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Thytronic NA11 Specifications

General

Brand	Thytronic
Model	NA11
Category	Relays
Language	English