ABB REG670 2.0 IEC Commissioning Manual page 161

1MRK502053-UEN B
Generator protection REG670 2.0 IEC
Commissioning manual
Testing functionality by secondary injection
5. Measure the operate time of the timer by injecting a current two times the set
INcosPhi> value and the polarizing voltage 1.2 · UNRel>.
×
kSN Sref
=
Tinv
×
3 I 3 U
0 test 0
IECEQUATION2402 V2 EN
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
Figure 44: Characteristic with ROADir restriction
( )
×
j
cos
test
3I
0
j
3 × j
I cos
0
ROADir
Section 12
o
=
RCADir 0
Operate area
- =
3 U U
0 ref
IEC06000650_2_en.vsd
(Equation 77)
155