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Section 10
Testing functionality by secondary injection
10.9.3.2
10.9.4
10.9.5
96
9.1. Test the actual set value defined by SpChAlmTime.
9.2. Enable SPRCHRST input. Also activate SPRCHRD after a time greater
than set time SpChAlmTime.
9.3. At this condition, SPCHALM is activated.
10. Test of CB gas pressure indication
10.1. Test the actual set value defined bytDGasPresAlm and tDGasPresLO.
10.2. The output GPRESALM is activated after a time greater than set time of
tDGasPresAlm value if the input PRESALM is enabled.
10.3. The output GPRESLO is activated after a set time of tDGasPresLO value if
the input PRESLO is enabled.
Completing the test
1.
Continue to test another function or end the test by changing the Test mode setting
to Off.
2.
Restore connections and settings to their original values if they were changed for
testing purposes.
Event function EVENT
Prepare the IED for verification of settings as outlined in section
in this chapter.
During testing, the IED can be set when in test mode from PST. The functionality of
the event reporting during test mode is set in the Parameter Setting tool in PCM600.
•
Use event masks
•
Report no events
•
Report all events
In test mode, individual event blocks can be blocked from PCM600.
Limit counter L4UFCNT
The Limit counter function L4UFCNT can be tested by connecting a binary input to
the counter and applying pulses to the counter. The speed of the pulses must not
exceed the cycle time of the function. Normally the counter will be tested when testing
the function that the counter is connected to, such as the trip function. When the
function is configured, test it together with the function that operates it. Trig the
function and check that the counter result corresponds to the number of operations.
1MRK 504 160-UEN -
"Preparing for test"
Transformer protection RET650 2.1 IEC
Commissioning manual
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