ABB Relion 670 Series REL670, Commissioning Manual

Page: 160 / 270

5. Measure the operate time of the timer by injecting 1.2 · UNRel> and a current to
get two times the set SN> operate value.
( )
0 0
/ 3 3 cos
test test
Tinv kSN Sref I U
j = × × ×
IECEQUATION2403 V1 EN
(Equation 78)
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
Off .
Operation mode 3I
0
and φ
1. Set the polarizing voltage to 1.2 · UNRel> and set the phase angle between
voltage and current to the set characteristic angle ( RCADir ). Note that the current
lagging the voltage.
2. Inject current until the function picks up, and make sure that the operate current
is equal to the
INDir> setting for the set directional element.
Note that for operation, both the injected current and voltage
must be greater than the set values
INRel> and UNRel>
respectively.
The function activates the START and STDIRIN output.
3. Measure with angles
j
around /- ROADir.
4. Compare the result with the set values, refer to figure 36 for example
characteristic.
5. Measure the operate time of the timer by injecting a current to get two times the
set
SN_> operate value.
( )
0 0
/ 3 3 cos
test test
Tinv kSN Sref I U
j
= × × ×
IECEQUATION2403 V1 EN
(Equation 79)
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
Off .
Section 10
1MRK 506 355-UEN A
Testing functionality by secondary injection
154 Line distance protection REL670 2.1 IEC
Commissioning manual