I
I
I
I
A
s
CTs
CTp
50
50
10459
1
9000
1 162
=
×
=
×
=
.
EQUATION14059 V1 EN-US
(Equation 75)
∠I
50s
= 0º
frequency of I
50s
= 50 Hz
It
I
I
I
A
fs
CTs
CTp
tf
=
×
=
×
=
10459
1
9000
1 162
.
EQUATION14062 V1 EN-US
(Equation 76)
∠I
tfs
= 180º
frequency of I
tfs
= 50.5 Hz
Expected result: the protection function does not issue either start or trip.
GUID-7C9F1163-0186-41DA-9D5F-DDA589323B9F v1
After each test it is possible to download and study the related disturbance recording.
IEC10000142-1-en.vsd
0
1
2
COMMON TRIP COMMAND (trip)
-1
0
1
TRIPZ1 (tripZone1)
0
1
2
TRIPZ2 (tripZone2)
0
1
2
START (start)
0
1
2
GENMODE (generatorMode)
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
-1
0
1
time in seconds
→
MOTMODE (motorMode)
IEC10000142 V1 EN-US
Figure 51: Boolean output signals for the injected current with two components: a 50 Hz
current component and a 49.5 Hz current component
12.4.12
Automatic switch onto fault logic ZCVPSOF
M13850-2 v8
Prepare the IED for verification of settings as outlined in section
and
in this chapter.
The automatic switch onto fault logic function ZCVPSOF is checked using secondary injection
tests together with the Scheme communication logic for distance or overcurrent protection
function and with the dead line detection function (DLD), which is embedded in ZCVPSOF.
Section 12
1MRK 502 067-UEN B
Testing functionality by secondary injection
146
Commissioning manual
