ABB Relion 650 Series Commissioning Manual page 74

Section 7
Testing functionality
1. Set the polarizing voltage to 1.2 ·
current to the set characteristic angle (
2. Measure that the operate power is equal to the
element.
The function activates the START and STDIRIN output.
3.
Measure with angles j around
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.
Tinv
IECEQUATION2403 V1 EN-US
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
IEC06000652 V3 EN-US
Figure 19: Example characteristic
Non-directional earth fault current protection
Procedure
1. Measure that the operate current is equal to the
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 time
selected.
4. Continue to test another function or complete the test by setting the test mode to
68
Note that for operation, both the injected current and voltage must be
greater than the set values
= × ×
kSN Sref / 3 I 3 U
0 test 0 test
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UNRel> and the phase angle between voltage and
RCADir ), the current lagging the voltage.
INDir> setting for the set directional
INRel> and UNRel> respectively.
RCADir +/- ROADir.
( )
j
×
cos
RCADir = 0º
ROADir = 80º
Operate area
3I
0
-3U
IEC06000652-3-en.vsd
INNonDir> setting.
1MRK 506 336-UEN B
19 for example characteristic.
0
tINNonDir or inverse time was
Line distance protection REL650
Commissioning manual
(Equation 3)
Off .
SEMOD175060-117 v7
Off .