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
10. Check that the BFI_3P signal reappears.
11. Slowly increase the positive-sequence voltage of the injected voltage above the
value until the BFI_3P signal disappears.
12. Compare the reset value to the set voltage high limit value.
11.7.4.2

Completing the test

• Continue to test another function or end the test by changing the
Disabled .
• Restore connections and settings to their original values if they were changed for testing
purposes.
11.8

Multipurpose protection

11.8.1

General current and voltage protection CVGAPC

Prepare the IED for verification of settings as outlined in section
section "Preparing for test"
One of the new 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.
11.8.1.1

Built-in overcurrent feature (non-directional)

Procedure
1. Go to Main menu/Test/Function test modes/Multipurpose protection/
GeneralCurrentVoltage(GAPC)/CVGAPC:x and make sure that CVGAPC to be tested is
unblocked and other functions that might disturb the evaluation of the test are blocked.
2. Connect the test set for injection of three-phase currents to the appropriate current
terminals of the IED.
3. Inject current(s) in a way that relevant measured current (according to setting parameter
CurrentInput ) is created from the test set. Increase the current(s) until the low set stage trips
and check against the set trip value.
4. Decrease the current slowly and check the reset value.
5. Block high set stage if the injection current will activate the high set stage when testing the
low set stage according to below.
6. Connect a TRIP output contact to the timer.
130
in this chapter.
CurrentInput and VoltageInput .
1MRK 511 366-UUS A
VUHighLimit
GUID-83C3F041-9553-4804-9A39-B3E46A5C9AE6 v2
Test mode setting to
"Requirements" and
Commissioning manual
SEMOD53552-1 v1
SEMOD56488-3 v3
SEMOD56488-9 v5