ABB REG670 Commissioning Manual page 201

1MRK 502 073-UUS A
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Commissioning manual
4. Compare the result with the set value and make sure that the new injected 3I
cos φ 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-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
VNRelPU .
8. Continue to test another function or complete the test by setting the test mode to
Disabled.
Testing functionality by secondary injection
( )
Section 13
·
0
55 and Figure 56.
(Equation 77)
195