MEASURES, LOGIC STATES AND COUNTERS
130
NA30 - Manual - 04 - 2022
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 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
Measures
Direct
• Frequency
(
f
)
• RMS value of fundamental component for phase currents (
I
L1
,
I
L2
,
I
L3
)
• RMS value of fundamental component for residual current (
I
E
)
• RMS value of fundamental component for residual voltage (
U
E
)
Calculated
• Thermal image
(
DTheta
)
• 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
)
Phase
• Displacement angle of
U
E
respect to
I
E
(
PhiE
)
Sequence
• Positive sequence current
(
I
1
)
• Negative sequence current
(
I
2
)
• Negative sequence current/positive sequence current ratio (
I
2
/
I
1
)
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
(
I
E-3rd
)
• Third harmonic of residual voltage
(
U
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 fixed 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
• IN3
ON/OFF
• IN4
ON/OFF
• IN5
ON/OFF
Internal states
The state of the functions assigned to binary inputs are available:
• Reset LEDs
ON/OFF
• Profile 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