ABB Relion 670 Series Commissioning Manual page 169

1MRK 506 371-UUS E
IED test set
ANSI09000021 V1 EN-US
Figure 43: 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
11.5.6.1 Measuring the trip 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 trip 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 (3V
RCADir -φ. Change φ´ to for example 45 degrees. Increase the injected current until the
function trips.
4. Compare the result with the set value and make sure that the new injected 3I
to the setting
Take the set characteristic into consideration, see Figure
5. Measure the trip time of the timer by injecting a current two times the set
and the polarizing voltage 1.2 ·
Line distance protection REL670
Commissioning manual
NI
V_A
V_B
V_C
V_N
· cosφ
0
VNRelPU and set the phase angle between voltage and
RCAComp into consideration if not equal to 0 .
INcosPhiPU setting.
· cosφ) function activates the PICKUP and PUNDIN output.
0
INcosPhiPU ..
VNRelPU .
© Copyright 2017 ABB. All rights reserved
IED
NI
V1
V2
V3
V_N
TRIP
ANSI09000021-1-en.vsd
RCADir ). Note that the the current lagging the
44
Testing functionality by secondary injection
) and current (3I ) i.e. φ´ =
0 0
· cos φ is equal
0
and Figure 45.
INcosPhiPU value
Section 11
SEMOD175060-12 v2
SEMOD175060-34 v9
163