MEASURES, LOGIC STATES AND COUNTERS
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NV10B - Manual - 04 - 2022
5 MEASURES, LOGIC STATES AND COUNTERS 5 MEASURES, LOGIC STATES AND COUNTERS
Measures
Direct
• Frequency (f )
• Phase voltages RMS value of fundamental component (U
L1
, U
L2
, U
L3
)
• Residual voltage RMS value of fundamental component (U
E
)
Calculated
• Maximum voltage between U
L1
-U
L2
-U
L3
(U
Lmax
)
• Average voltage between U
L1
-U
L2
-U
L3
(U
L
)
• Calculated residual voltage
(U
EC
)
• Negative sequence voltage (U
2
)
• Third harmonic of residual voltage (U
E-3rd
)
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 (Read\Internal states):
• Reset LEDs ON/OFF
• Profile selection ON/OFF
• Fault trigger 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
• 74VT ext. ON/OFF
Relays
For every output relay, the output operating state and diagnostic are available (Read \Relays menu):
• K1 State ON/OFF
• K1 Diagnostic OK/NOT OK
• K2 State ON/OFF
• K2 Diagnostic OK/NOT OK
• ......
• K6 State ON/OFF
• K6 Diagnostic OK/NOT OK
Counters
For every element two set of counters are available (Partial counters and Total counters); the partial
counters can be cleared by the user level, while the Total counter reset can be achieved with pass-
word (Session Level 1).
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 partial
counters command must be issued (Commands \ Reset submenu).
• 27 - Counters
• 59 - Counters
• 59N - Counters
• 74TCS - Counters
• CB - Counters
• BF - Counters
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