Hitachi Relion 670 Series Commissioning Manual page 100

Section 11
Testing functionality by secondary injection
Tinv
IECEQUATION2402 V2 EN-US
6. Compare the result with the expected value.
The expected value depends on whether definite or inverse time was selected.
7. Set the polarizing voltage to zero and increase until the boolean output signal UNREL is
activated, which is visible in the Application Configuration in PCM600 when the IED is in online
mode. Compare the voltage with the set value UNRel> .
8. Continue to test another function or complete the test by setting the test mode to Off.
IEC06000650 V2 EN-US
Figure 24:
94
×
kSN Sref
=
( )
× ×
3 I 3 U j
cos
0 test 0 test
3 ×
I
ROADir
Characteristic with ROADir restriction
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=
RCADir
3I
0
Operate area
j
-
3
j
cos
0
1MRK 511 403-UEN Rev. L
o
0
=
U U
0 ref
IEC06000650_2_en.vsd
Bay control REC670
Commissioning manual
(Equation 1)