Completing The Test; Four Step Phase Overcurrent Protection 3-Phase Output Oc4Ptoc (51_67); Verifying The Settings - ABB Relion 650 Series REL650 Commissioning Manual

1MRK 506 331-UUS A
6.4.2.1
6.4.3
6.4.3.1
Commissioning Manual
3. Switch the fault current off. Observe to not exceed the maximum permitted
overloading of the current circuits in the IED.
4. Compare the measured operating current with the set value.

Completing the test

Continue to test another function or end the testing by setting the parameter TestMode
to Disabled under Main menu/Tests/IED test mode/1:TESTMODE. If another
function is tested, then set the parameter Blocked to No under Main menu/Tests/
Function test modes/Current/SPTPIOC(50,I>>)/1:SPTPIOC for the function, or
for each individual function in a chain, to be tested next. Remember to set the
parameter Blocked to Yes, for each individual function that has been tested.
Four step phase overcurrent protection 3-phase output
OC4PTOC (51_67)
Prepare the IED for verification of settings as outlined in
verify settings".
Values of the logical signals for OC4PTOC (51_67) are available on the local HMI
under Main menu/Tests/Function status/Current/OC4PTOC(51_67,4I>)/
1:OC4PTOC. The Signal Monitoring in PCM600 shows the same signals that are
available on the local HMI.

Verifying the settings

1. Connect the test set for current injection to the appropriate IED phases.
If there is any configuration logic that is used to enable or block any of the four
available overcurrent steps, make sure that the step under test is enabled (for
example, end fault protection).
Connect the symmetrical three-phase injection current into phases A, B and C.
2. Connect the test set for the appropriate three-phase voltage injection to the IED
phases A, B and C. The protection shall be fed with a symmetrical three-phase
voltage.
3. Set the injected polarizing voltage slightly larger than the set minimum polarizing
voltage (default is 5% of VBase) and set the injection current to lag the
appropriate voltage by an angle of 55° if forward directional function is selected.
If 1 out of 3 currents for operation is chosen: The voltage angle of phase A is the
reference.
If reverse directional function is selected, set the injection current to lag the
polarizing voltage by an angle equal to 235° (equal to 55° + 180°).
Section 6
Testing functionality
5.1 "Preparing the IED to
63