Sensitive Directional Residual Overcurrent And Power Protection Sdepsde; Measuring The Operate And Time Limit For Set Values - ABB Relion 670 Series Commissioning Manual

1MRK 511 403-UEN Rev. K
11.4.6 Sensitive directional residual overcurrent and power protection
SDEPSDE
Prepare the IED for verification of settings as outlined in section
section
IED test set
IEC09000021 V2 EN-US
Figure 23:
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
11.4.6.1

Measuring the operate and time limit for set values

Operation mode 3I
Procedure
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 the current lagging the voltage.
Take setting RCAComp into consideration if not equal to 0.
2. Inject current until the function picks up, and make sure that the operate current of the set
directional element is equal to the INcosPhi> setting.
The I Dir (3I
3. Assume that φ´ is the phase angle between injected voltage (3U
RCADir-φ. Change φ´ to for example 45 degrees. Increase the injected current until the
function operates.
4. Compare the result with the set value and make sure that the new injected 3I
to the setting INcosPhi>..
Take the set characteristic into consideration, see Figure
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>.
Bay control REC670
Commissioning manual
"Preparing for test" in this chapter.
NI
L1U
L2U
L3U
NU
Principle connection of the test set
· cosφ
0
· cosφ) function activates the START and STDIRIN output.
0
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"Requirements"
IED
NI
U1
U2
U3
NU
TRIP
IEC09000021-2-en.vsd
24 and Figure 25.
Section 11
Testing functionality by secondary injection
SEMOD175060-3 v7
and
SEMOD175060-12 v2
SEMOD175060-34 v9
) and current (3I ) i.e. φ´ =
0 0
· cos φ is equal
0
93