ABB RET650 2.1 IEC, Руководство по вводу в эксплуатацию

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1. Connect the test set for injection three-phase voltages to the appropriate voltage
terminals of the IED.
2. Inject voltage(s) in a way that relevant measured (according to setting parameter
VoltageInput ) voltages are created from the test set.
3. Overall check in principal as above (non-directional overcurrent feature) and
correspondingly for the undervoltage feature.
10.5.1.6 Completing the test
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.
10.6 Secondary system supervision
10.6.1 Fuse failure supervision FUFSPVC
Prepare the IED for verification of settings outlined in section "Preparing the IED to
verify settings" .
The verification is divided in two main parts. The first part is common to all fuse
failure supervision options, and checks that binary inputs and outputs operate as
expected according to actual configuration. In the second part the relevant set operate
values are measured.
10.6.1.1 Checking that the binary inputs and outputs operate as expected
1. Simulate normal operating conditions with the three-phase currents in phase
with their corresponding phase voltages and with all of them equal to their rated
values.
2. Connect the nominal dc voltage to the DISCPOS binary input.
•
The signal BLKU should appear with almost no time delay.
• The signals BLKZ and 3PH should not appear on the IED.
• Only the distance protection function can operate.
• Undervoltage-dependent functions must not operate.
3. Disconnect the dc voltage from the DISCPOS binary input terminal.
4. Connect the nominal dc voltage to the MCBOP binary input.
•
The BLKUand BLKZ signals should appear without any time delay.
• All undervoltage-dependent functions must be blocked.
5. Disconnect the dc voltage from the MCBOP binary input terminal.
6. Disconnect one of the phase voltages and observe the logical output signals on
the binary outputs of the IED.
Section 10
1MRK 504 160-UEN -
Testing functionality by secondary injection
84 Transformer protection RET650 2.1 IEC
Commissioning manual