Overcurrent Feature With Directionality; Over/Undervoltage Feature; Completing The Test; Secondary System Supervision - ABB Relion 670 Series Commissioning Manual

Section 11
Testing functionality by secondary injection
11.7.1.4

Overcurrent feature with directionality

Please note that the directional characteristic can be set in two different ways either just
dependent on the angle between current and polarizing voltage (setting parameter
DirPrinc_OC1 or DirPrinc_OC2 set to or in a way that the operate value also is dependent on the
angle between current and polarizing voltage according to the I · cos(F) law (setting
parameter
detailed measurement of the directional characteristic is made, than the one described below.
Procedure
1. Connect the test set for injection of three-phase currents and three-phase voltages to
the appropriate current and voltage terminals of the IED.
2. Inject current(s) and voltage(s) in a way that relevant measured (according to setting
parameter
test set.
3. Set the relevant measuring quantity current to lag or lead (lag for negative RCA angle and
lead for positive RCA angle) the relevant polarizing quantity voltage by an angle equal to
the set IED characteristic angle (rca-dir) when forward directional feature is selected and
the
If reverse directional feature is selected or
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.
11.7.1.5

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.
11.7.1.6

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

Secondary system supervision

11.8.1

Current circuit supervision CCSSPVC

Prepare the IED for verification of settings outlined in Section
settings".
The Current circuit supervision function CCSSPVC is conveniently tested with the same three-
phase test set as used when testing the measuring functions in the IED.
134
DirPrinc_OC1 or DirPrinc_OC2 set to I · cos(F). This has to be known if a more
CurrentInput and VoltageInput ) currents and voltages are created from the
CTstarpoint configuration parameter is set to ToObject .
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CTstarpoint configuration parameter is set to
TESTMODE setting to Off .
"Preparing the IED to verify
1MRK 511 403-UEN E
SEMOD56488-60 v5
SEMOD56488-83 v2
SEMOD56488-99 v2
SEMOD53556-1 v1
M12917-25 v8
Bay control REC670
Commissioning manual