Loss Of Excitation Lexpdis; Verifying The Settings - ABB REG670 2.0 IEC Commissioning Manual

Section 12
Testing functionality by secondary injection
12.4.6
12.4.6.1
140
2
1
0
1
0
-1
2
1
0
2
1
0
2
1
0
1
0
-1
0 0.5 1
IEC10000142 V1 EN
Figure 38: Boolean output signals for the injected current with two components:
a 50 Hz current component and a 49.5 Hz current component

Loss of excitation LEXPDIS

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

Verifying the settings

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 39. 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 39. Read the analog outputs for R and X and check
COMMON TRIP COMMAND (trip)
TRIPZ1 (tripZone1)
TRIPZ2 (tripZone2)
START (start)
GENMODE (generatorMode)
MOTMODE (motorMode)
1.5 2 2.5 3
time in seconds →
in this chapter.
1MRK502053-UEN B
3.5 4 4.5
IEC10000142-1-en.vsd
"Requirements"
Generator protection REG670 2.0 IEC
Commissioning manual
5
and