
Operation mode 2I
0
and φ
GUID-1D01114B-B012-483F-BE1A-2C0237407477 v1
1.
Set the polarizing voltage to 1.2 ·
UNRel>
and set the phase angle between voltage and
current to the set characteristic angle (
RCADir
). Note that the current shall lag the voltage.
2.
Inject current until the function picks up, and make sure that the operate current is equal to the
INDir>
setting for the set directional element.
Note that for operation, both the injected current and voltage must be greater
than the set values
INRel>
and
UNRel>
respectively.
The function activates the START and STDIRIN output.
3.
Measure with angles
j
around
/- ROADir.
4.
Compare the result with the set values, refer to Figure
5.
Measure the operate time of the timer by injecting a current to get two times the set
SN_>
operate value.
cos
2
2
/
0
0
test
test
ref
inv
U
I
S
kSN
T
IECEQUATION235 V1 EN-US
(Equation 5)
6.
Compare the result with the expected value.
The expected value depends on whether definite or inverse time was selected.
7.
Continue to test another function or complete the test by setting the test mode to
Off
.
-2
U
0
Operate area
2
I
0
RCADir
= 0º
ROADir
= 80º
IEC15000257-1-en.vsdx
IEC15000257 V1 EN-US
Figure 30:
Example characteristic
Non-directional earth fault current protection
SEMOD175060-117 v10
Procedure
1.
Measure that the operate current is equal to the
INNonDir>
setting.
The function activates the START and STDIRIN output.
2.
Measure the operate time of the timer by injecting a current of 200% of the operate value.
3.
Compare the result with the expected value.
The expected value depends on whether definite or inverse time was selected.
4.
Continue to test another function or complete the test by setting the test mode to
Off
.
1MRK 506 377-UEN Rev. K
Section 10
Testing functionality by secondary injection
Railway application RER670
107
Commissioning manual
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Содержание Relion 670 series
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