9.4.2.2
Completing the test
SEMOD56287-118 v4
Continue to test another function or end the test by changing the
TESTMODE
setting to
Off
. Restore connections and settings to their original values, if they were
changed for testing purposes.
9.4.3
Instantaneous residual overcurrent protection EFPIOC
SEMOD52967-3 v7
Prepare the IED for verification of settings outlined in Section
.
Values of the logical signals for EFPIOC are available on the local HMI under
Main menu/Tests/Function status/Current protection/
InstResidualOverCurrent(50N,IN>>)/EFPIOC(50N;IN>>):x
, where x = 1, 2,
and 3.
The Signal Monitoring in PCM600 shows the same signals that are available on the
local HMI.
To verify the settings the following fault type should be tested:
•
Phase-to-earth fault
Ensure that the maximum continuous current, supplied from the current source
used for the test of the IED, does not exceed four times the rated current value of
the IED.
9.4.3.1
Measuring the operate limit of set values
SEMOD52967-11 v9
1.
Inject a phase current into the IED with an initial value below the set value of
IN>>
and also make sure that the set value
IN>>
is in between
IN>>Min
and
IN>>Max
.
2.
Increase the injected current in the Ln or in the neutral (summated current
input) phase until the TRIP signal appears.
3.
Switch the fault current off.
Do not exceed the maximum permitted overloading of the
current circuits in the IED.
4.
Compare the measured operating current with the set value.
9.4.3.2
Completing the test
SEMOD52967-24 v5
Continue to test another function or end the test by changing the
TESTMODE
setting to
Off
. Restore connections and settings to their original values, if they were
changed for testing purposes.
1MRK 506 383-UEN A
Section 9
Testing functionality by secondary injection
Line distance protection REL650 2.2 IEC
105
Commissioning manual
Содержание REL650 series
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