Over/Undervoltage Feature; Completing The Test; Secondary System Supervision; Current Circuit Supervision Ccsrdif - ABB RET670 Installation And Commissioning Manual

Section 13
Verifying settings by secondary injection
13.9.1.5
13.9.1.6
13.10
13.10.1
13.10.1.1
170
If reverse directional feature is selected or CTstarpoint configuration
parameter is set to FromObject, the angle between current and polarizing
voltage shall be set equal to rca-dir+180°.
4. Overall check in principal as above (non-directional overcurrent feature)
5. Reverse the direction of the injection current and check that the protection
does not operate.
6. Check with low polarization voltage that the feature becomes non-directional,
blocked or with memory according to the setting.

Over/Undervoltage feature

Procedure
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.

Completing the test

Continue to test another function or end the test by changing the Test mode setting
to Off. Restore connections and settings to their original values, if they were
changed for testing purposes.

Secondary system supervision

Current circuit supervision CCSRDIF

Prepare the IED for verification of settings as outlined in section
section "Preparing for test"
The Current circuit supervision function CCSRDIF is conveniently tested with the
same three-phase test set as used when testing the measuring functions in the IED.
The condition for this procedure is that the setting of IMinOp is lower than the
setting of Ip>Block.

Verifying the settings

in this chapter.
1MRK 504 088-UEN C
"Overview"
Installation and commissioning manual
and