Verifying The Settings; Completing The Test; Fuse Failure Supervision Fufspvc; Checking That The Binary Inputs And Outputs Operate As Expected - ABB Relion 670 Series Commissioning Manual

1MRK 511 403-UEN E
The condition for this procedure is that the setting of
Ip>Block .
11.8.1.1

Verifying the settings

1. Check the input circuits and the operate value of the
injecting current, one phase at a time.
2. Check the phase current blocking function for all three phases by injecting current, one
phase at a time. The output signals shall reset with a delay of 1 second when the current
exceeds 1.5 ·
3. Inject a current 0.1 ·
4. Increase slowly the current in one of the phases and check that FAIL output is obtained
when the current is above 0.9 ·
11.8.1.2

Completing the test

continue to test another function or end the test by changing the
Restore connections and settings to their original values, if they were changed for testing
purposes.
11.8.2

Fuse failure supervision FUFSPVC

Prepare the IED for verification of settings as outlined in section
section
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.
11.8.2.1

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.
•
•
•
•
3. Disconnect the dc voltage from the DISCPOS binary input terminal.
4. Connect the nominal dc voltage to the MCBOP binary input.
•
•
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.
BLKU and BLKZ signals should appear simultaneously wether the BLKU and BLKZ reset
depends on the setting
7. After more than 5 seconds disconnect the remaining two-phase voltages and all three
currents.
Bay control REC670
Commissioning manual
IBase .
IBase to the reference current input I5.
"Preparing for test" in this chapter.
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.
The BLKUand BLKZ signals should appear without any time delay.
All undervoltage-dependent functions must be blocked.
SealIn "on" or "off". If "on" no reset, if "off" reset.
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IMinOp is lower than the setting of
IMinOp current level detector by
IBase .
Testing functionality by secondary injection
TESTMODE setting to Off .
"Requirements" and
Section 11
M12917-31 v8
M12917-43 v4
M1405-2 v8
M1405-9 v8
135