Thytronic NA011 - Measures, Logic States and Counters; Measures; Circuit Breaker; Binary Inputs

MEASURES, LOGIC STATES AND COUNTERS
46
NA011 - Manual - 05 - 2022
5 MEASURES, LOGIC STATES AND COUNTERS 5 MEASURES, LOGIC STATES AND COUNTERS
Measures
• 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
)
Circuit breaker
The CB and 79 states are provided
• Position Open - Closed - Unknown
Binary inputs
The input states are provided
• IN1 input ON/OFF
• IN2 input ON/OFF
• IN3 input ON/OFF
Counters
For every protective element and control function several counters are available; the partial coun-
ters can be cleared by the user.
Every partial counter is reset to zero when ten thousand count is passed.
All partial counters can be cleared by means a single command; for this purpose the Reset coun-
ters command must be issued available inside the Reset menu.
• Counter ST I> (start I> element)
• Counter ST I>> (start I>> element)
• Counter ST I>>> (start I>>> element)
• Counter ST IE> (start IE> element)
• Counter ST IE>> (start IE>> element)
• Counter TR I> (trip I> element)
• Counter TR I>> (trip I>> element)
• Counter TR I>>> (trip I>>> element)
• Counter TR IE> (trip IE> element)
• Counter TR IE>> (trip IE>> element)
• Counter TR EXT (Remote trip)
• Counter 79 RR (Rapid reclosures)
• Counter 79 SR (Slow reclosures)
• Counter 79 DR (Delayed reclosures)
• Counter 79 FR P (Failed reclosures from 50/51 trip)
• Counter 79 FR E (Failed reclosures from 50N/51N trip)
• Counter 79 FR X (Failed reclosures from external trigger)
Fault recording - SFR
Recording
[1]
is triggered by:
• Relay activation (OFF-ON)
• External trigger (binary input) programmed as Fault trigger
• Element start or trip
Twenty faults are recorded into a circular FIFO (First In, First Out) buffer.
[2]
Following information are stored in every record:
Read \ Faults \ Info menu
• Faults stored
[3]
• Last fault
Read \ Faults \ Fault menu
• Fault number (F-Number)
• Fault Cause (F-Cause)
• Fault Phases (F-Phases)
• Phase currents (F-IL1, F-IL2, F-IL3)
• Residual current I
Er
F-IE)
• Date and time (F-Year)
• Date and time (F-Year)
• Date and time (F-Month)
• ...
• Date and time (F-Millisecond)
The fault log may be erased by means of the command available inside the Read \ Faults \ Reset
menu.
Event recording - Events
Recording is triggered by:
• Power up and/or Power down.
• Element start or trip.
• Binary input switch (OFF-ON or ON-OFF).
• Setting modify.
Note 1 Data concerning the twenty events are stored into non volatile memory; they are held in spite of power down
Note 2 Fault 0 is the newest event, while the Fault 19 is the oldest event
Note 3 Counter is updated at any new record; it may be cleared by means ThyVisor