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Thytronic XMR-T User Manual

Thytronic XMR-T
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172
MEASURES, LOGIC STATES AND COUNTERS
Protections
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:
IN1-1 ON/OFF
IN1-2 ON/OFF
INx-x ON/OFF
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 significantly 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
System diagnostic OK/NOTOK
Device diagnostic OK/NOTOK
Program diagnostic OK/NOTOK
Data-base boot OK/NOTOK
Data-base runtime OK/NOTOK
DSP boot OK/NOTOK
DSP run-time OK/NOTOK
Memory boot OK/NOTOK
Memory run-time OK/NOTOK
Data Bus heavy OK/NOTOK
PLC boot OK/NOTOK
PLC run-time OK/NOTOK
Protection I/O assigned verify startup OK/NOTOK
Protection I/O assigned verify run-time majorOK/NOTOK
Total protection I/O assigned not-matching0
Protection I/O assigned not-matching
PLC I/O assigned not-matching OK/NOTOK
PLC I/O assigned not-matching run-time majorOK/NOTOK
Total PLC I/O assigned not-matching 0
PLC I/O assigned not-matching
When a higher level anomaly is recognized all protective functions are disabled and the output relays
switch in no-trip state:
rest state if the output relay are set in De-energizedmode (contacts as shown in the diagrams)
active state if the output relay are set in Energized mode (opposite to what is shown in the dia-
grams).
The connections of the trip and diagnostic relays must be performed according to the application:
when the output relay must be normally energized and the circuit breaker must be open in case of
failure of the protection system, the self-test function must be enabled and assigned to the normally
energized relay selected for tripping.
The diagnostic alarms can be allocated to an output relay; for this purpose the
Self-testrelaypa-
rameter can be set inside the Set \ Self-test Relay submenu.
Pilot wire diagnostic
Detailed diagnostic information about the pilot wire are available.
(Read \ Pilot wire diagnostic).
BLIN1 pilot wire breaking diagnostic state ON/OFF
Pilot wire BLIN1 shorted ON/OFF
Note 1 The relays are being switched in rest position (ON if set with Energized logic - OFF if set with De-energized logic)
XMR-T EQUIPMENT MANUAL
Ed. 2.9 - 02/2021

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Thytronic XMR-T Specifications

General IconGeneral
BrandThytronic
ModelXMR-T
CategoryProtection Device
LanguageEnglish

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