Measuring The Operate And Time Limit For Set Values - ABB RELION REG670 Commissioning Manual

1MRK 502 067-UEN B
IED test set
IEC09000021 V2 EN-US
Figure 56: Principle connection of the test set
Values of the logical signals belonging to the sensitive directional residual overcurrent and
power protection are available on the local HMI under Main menu/Test/Function status/
Current protection/SensDirResOvCurr(67N,IN>)/SDEPSDE(67N,IN>):x
12.5.6.1

Measuring the operate and time limit for set values

Operation mode 3I
Procedure
1. Set the polarizing voltage to 1.2 ·
current to the set characteristic angle (
voltage.
Take setting
2. Inject current until the function picks up, and make sure that the operate current of the
set directional element is equal to the
The I Dir (3I
3. Assume that φ´ is the phase angle between injected voltage (3U
´ =
the function operates.
4. Compare the result with the set value and make sure that the new injected 3I
equal to the setting
Take the set characteristic into consideration, see Figure
5. Measure the operate time of the timer by injecting a current two times the set
value and the polarizing voltage 1.2 ·
Tinv
IECEQUATION2402 V2 EN-US
6. Compare the result with the expected value.
Commissioning manual
NI
L1U
L2U
L3U
NU
· cosφ
0
RCAComp into consideration if not equal to 0 .
· cosφ) function activates the START and STDIRIN output.
0
RCADir -φ. Change φ´ to for example 45 degrees. Increase the injected current until
INcosPhi> ..
×
kSN Sref
=
( )
× ×
3 I 3 U j
cos
0 test 0 test
IED
NI
U1
U2
U3
NU
TRIP
IEC09000021-2-en.vsd
UNRel> and set the phase angle between voltage and
RCADir ). Note that the the current lagging the
INcosPhi> setting.
UNRel> .
Testing functionality by secondary injection
) and current (3I
0
· cos φ is
0
57 and Figure 58.
INcosPhi>
(Equation 77)
Section 12
SEMOD175060-12 v2
SEMOD175060-34 v9
) i.e. φ
0
159