Completing The Test; Multipurpose Protection; General Current And Voltage Protection Cvgapc; Built-In Overcurrent Feature (Non-Directional) - ABB Relion 670 Series Commissioning Manual

Section 11
Testing functionality by secondary injection
Verification of voltage band limit check logic
1. Ensure that the settings in the IED are appropriate to the default settings, especially the
CurrStartLevel , FreqHighLimit , FreqLowLimit , UHighLimit and ULowLimit settings.
2. Ensure that the
3. Supply the IED with three-phase currents and voltages at their rated values.
4. Check that the VOLTOK signal appears.
5. Slowly decrease the frequency of the applied voltage until the START signal appears.
6. Slowly decrease the positive-sequence voltage of the injected voltage below the
ULowLimit value until the START signal disappears.
7. Check that the VOLTOK signal disappears.
8. Compare the reset value to the set voltage low limit value.
9. Readjust the positive-sequence voltage of the applied voltage to a value within the set
voltage band limits.
10. Check that the START signal reappears.
11. Slowly increase the positive-sequence voltage of the injected voltage above the
UHighLimit value until the START signal disappears.
12. Compare the reset value to the set voltage high limit value.
11.6.4.2

Completing the test

• Continue to test another function or end the test by changing the
off .
• Restore connections and settings to their original values if they were changed for testing
purposes.
11.7

Multipurpose protection

11.7.1

General current and voltage protection CVGAPC

Prepare the IED for verification of settings as outlined in section
section
One of the facilities within the general current and voltage protection function CVGAPC is that
the value, which is processed and used for evaluation in the function, can be chosen in many
different ways by the setting parameters
These setting parameters decide what kind of preprocessing the connected three-phase CT
and VT inputs shall be subjected to. That is, for example, single-phase quantities, phase-to-
phase quantities, positive sequence quantities, negative sequence quantities, maximum
quantity from the three-phase group, minimum quantity from the three-phase group,
difference between maximum and minimum quantities (unbalance) can be derived and then
used in the function.
Due to the versatile possibilities of CVGAPC itself, but also the possibilities of logic
combinations in the application configuration of outputs from more than one CVGAPC
function block, it is hardly possible to define a fully covering general commissioning test.
11.7.1.1

Built-in overcurrent feature (non-directional)

Procedure
132
EnaVoltCheck is enabled.
"Preparing for test" in this chapter.
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CurrentInput and VoltageInput .
1MRK 511 403-UEN E
GUID-83C3F041-9553-4804-9A39-B3E46A5C9AE6 v2
Test mode setting to
SEMOD53552-1 v1
SEMOD56488-3 v4
"Requirements" and
SEMOD56488-9 v5
Bay control REC670
Commissioning manual