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

Section 13
Testing functionality by secondary injection
13.4.6
13.4.6.1
166
Expected result: the protection function does not issue either start or trip.
After each test it is possible to download and study the related disturbance
recording.
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-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

Prepare the IED for verification of settings outlined in Section
to 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
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
COMMON TRIP COMMAND (trip)
TRIPZ1 (tripZone1)
TRIPZ2 (tripZone2)
START (start)
GENMODE (generatorMode)
MOTMODE (motorMode)
1.5 2 2.5 3
time in seconds
→
1MRK 502 073-UEN A
GUID-7C9F1163-0186-41DA-9D5F-DDA589323B9F v1
3.5 4 4.5 5
IEC10000142-1-en.vsd
SEMOD158873-3 v3
"Preparing the IED
SEMOD158873-39 v3
Commissioning manual