Completing The Test; Pole Slip Protection Pspppam; Verifying The Settings - ABB Relion 670 Series Commissioning Manual

Section 11
Testing functionality by secondary injection
Make sure that the trip appears within the operate time for the distance protection zone
1 and no BLKZMOR output signal appears.
3. Switch off the fault and prepare a new fault without fault resistance within the normal
distance protection zone 2 operate area, but outside the zone 1 operate area.
4. Switch on the fault and move it into the zone 1 operate area with a time delay longer than
the time set on the
5. Observe the operate time, which must be equal to the operate time of zone 1, after the
measured impedance enters its operate area.
No delayed operation of zone 1 must be observed.
6. Configure the STPSD functional input to connect to the START functional output and
repeat the previous fault.
Fast trip, caused by the operation of zone 1 must appear with a time delay, which is equal
to the set time delay on the timer
BLKZMOR functional output signal, which must appear for a short time.
7. Be sure to establish the original configuration of the IED and the original settings of all
setting parameters.
11.4.10.4

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.
11.4.11

Pole slip protection PSPPPAM

Prepare the IED for verification of settings as outlined in section
"Preparing for test"
11.4.11.1

Verifying the settings

It is assumed that setting of the pole slip protection function PSPPPAM is done according to
impedances as seen in figure
The test is done by means of injection of three-phase current and three-phase voltage from a
modern test device. This test device shall be able to give voltage and current with the
possibility to change voltage and current amplitude and the angle between the injected
voltage and current. The parameter setting shall be according to the real application chosen
values.
Procedure
1. Feed the IED with current and voltage corresponding to a normal operation point
Injected voltage U equal to base voltage (
the base current (
2. With maintained amplitude of the injected voltage the current amplitude and angle is
changed to a value ZC/2.
This is done with a speed so that the final impedance is reached after 1 second. As the
injected voltage is higher than 0.92
3. With reduced amplitude of the injected voltage to 0.8
angle is changed to a value ZC/2.
This is done with a speed so that the final impedance is reached after 1 second. As the
injected voltage is lower than 0.92
4. With reduced amplitude of the injected voltage to 0.8
angle is changed via ZC/2 to a value corresponding to half
injected current and voltage.
138
tDZ timer and faster than the time set on timer tZL .
tZL plus zone 1 normal operate time. Also, observe the
in this chapter.
41 and figure 42.
IBase ). The angle between the voltage and current shall be 0°.
UBase no START signal should be activated.
UBase the START signal should be activated.
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TESTMODE setting to Off .
"Requirements"
UBase ) and the injected current I equal to half
UBase the current amplitude and
UBase the current amplitude and
IBase and 180° between the
Transformer protection RET670
1MRK 504 165-UEN E
M14946-70 v2
SEMOD175096-3 v2
and section
SEMOD175096-7 v3
Commissioning manual