ABB Relion REG670, Commissioning Manual

Page: 154 / 262

12.4.13.1 Verifying the settings
SEMOD158873-39 v3
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 corresponding to
the set apparent impedance.
1. Feed the IED with current and voltage corresponding to the apparent impedance: Test #1,
as shown in figure 52 . Read the analog outputs for R and X and check that this reading
corresponds to the injected impedance. No start or trip signals shall be activated.
2. Feed the IED with current and voltage corresponding to the apparent impedance: Test
#2, as shown in figure 52 . Read the analog outputs for R and X and check that this reading
corresponds to the injected impedance. No start or trip signals shall be activated.
3. Feed the IED with current and voltage corresponding to the apparent impedance: Test
#3, as shown in figure 52 . Read the analog outputs for R and X and check that this reading
corresponds to the injected impedance. The signals START and STZ2 shall be activated
instantaneously and the signals TRIP and TRZ2 shall be activated after the set delay tZ2.
4. Switch the current infeed injection off. The function shall reset. Turn the current on with
the values corresponding to Test #3 and measure the time to activation of signal TRZ2.
This time shall be compared to
tZ2.
5. Feed the IED with current and voltage corresponding to the apparent impedance: Test
#4, as shown in figure 52 . Read the analog outputs for R and X and check that this
reading corresponds to the injected impedance. The signals START, STZ2 and STZ1 shall
be activated instantaneously and the signals TRIP, TRZ2 and TRZ1 shall be activated after
the different set time delays.
6. Switch the current infeed injection off. The function shall reset. Turn the current on with
the values corresponding to Test #4 and measure the time to activation of signal TRZ1.
This time shall be compared to
tZ1.
IEC06000513-2-en.vsd
R
X
Underexcitation Protection
Restrain area
Z1, Fast zone
Z2, Slow zone
Test #1
Test #2
Test #3
Test #4
IEC06000513 V2 EN-US
Figure 52: Testing current and voltage corresponding to the apparent impedance
Section 12 1MRK 502 067-UEN B
Testing functionality by secondary injection
148
Commissioning manual