MEASURES, LOGIC STATES AND COUNTERS
283
NVA100X-D - Manual - 02 - 2016
Relays
KC1-2 Diagnostic
OK/NOT OK
KS1-1 State
ON/OFF
KS1-2 Diagnostic
OK/NOT OK
...
KS1-16 State
ON/OFF
KS1-16 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).:
21 Counters
27 Counters
27V1 Counters
32P Counters
37 Counters
37P Counters
40 Counters
46G Counters
46M Counters
47 Counters
49MG Counters
50/51 side H Counters
50/51 side L Counters
51LR(48)/14 Counters
51V Counters
50N.1/51N.1 Counters
50N.2/51N.2 Counters
50N(Comp)/51N(Comp) Counters
55 Counters
59 Counters
59N Counters
59V2 Counters
66 Counters
67N Counters
67N(Comp) Counters
81O Counters
81U Counters
87G-87M-87T Counters
2ndh-REST Counters
74TCS Counters
CB Counters
74VT Counters
74CT side H Counters
74CT side L Counters
BF Counters
Partial counters
xx Start partial counter (xx = I>, I>>,...)
0...9999
xx Trip partial counter (xx = I>, I>>,...)
0...9999
xx Block1 partial counter (xx = I>, I>>,...)
0...9999
xx Block2 partial counter (xx = I>, I>>,...)
0...9999
Total counters
xx Start total counter (xx = I>, I>>,...)
0...9999
xx Trip total counter (xx = I>, I>>,...)
0...9999
xx Block1 total counter (xx = I>, I>>,...)
0...9999
xx Block2 total counter (xx = I>, I>>,...)
0...9999
Self test
Proper management (programming and remote monitoring) of the self-diagnosis function ensures
the fast detection of most of the protection system failures and signifi cantly reduces the need for
periodic testing.
Following anomalies (MINOR) are not relevant (the protective elements continue to work):
Oscillography run-time
OK/NOT OK
Data Bus minor
OK/NOT OK
Protection I/O assigned run-time minor
OK/NOT
OK
PLC I/O not-matching run-time minor
OK/NOT OK
Lower level diagnostic (MINOR) can be output or ignored; for this purpose the
MINOR Fail alarm
parameter can be set
ON
or
OFF
inside the
Set \ Self test relay
submenu.
All remaining anomalies
disables all protective functions
[1]
The self test information are:
Protection and controls
ON SERVICE/OUT OF SERVICE
Note
1 The relays are being switched in rest position (ON if set with Energized logic - OFF if set with De-energized logic)
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