Loss Of Excitation Lexpdis (40); Verifying The Settings - ABB REG670 Commissioning Manual

1MRK 502 073-UUS A
13.4.6
13.4.6.1
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Commissioning manual
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IEC10000142 V1 EN-US
Figure 49: 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 (40)

Prepare the IED for verification of settings outlined in Section
verify settings".

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 50. Read the analog outputs for R and X and check
Testing functionality by secondary injection
COMMON TRIP COMMAND (trip)
TRIPZ1 (tripZone1)
TRIPZ2 (tripZone2)
START (start)
GENMODE (generatorMode)
MOTMODE (motorMode)
1.5 2 2.5 3
time in seconds
→
Section 13
3.5 4 4.5 5
IEC10000142-1-en.vsd
SEMOD158873-3 v3
"Preparing the IED to
SEMOD158873-39 v3
179