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Section 11
Testing functionality by secondary injection
128
4.
Compare the result with the set value and make sure that the new injected 3I
is equal to the setting INcosPhiPU..
Take the set characteristic into consideration, see Figure
5.
Measure the trip time of the timer by injecting a current two times the set
INcosPhiPU value and the polarizing voltage 1.2 · VNRelPU.
TDSN SRef
⋅
Tinv
=
3
I
⋅
3
V
⋅
cos ϕ
0
0
test
ANSI13000294 V1 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 VNRelPU .
8.
Continue to test another function or complete the test by setting the test mode to
Disabled.
( )
1MRK 511 366-UUS -
· cos φ
0
28
and Figure 29.
(Equation 77)
Commissioning manual
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