11.13.14.1 Function revision history
GUID-1740AA05-417C-4474-ABE7-F15CB4D16019 v3
Document
revision
Product
revision
History
A
2.2.1
-
B
2.2.1
-
C
2.2.2
-
D
2.2.3
-
E
2.2.3
-
F
2.2.4
-
G
2.2.4
Added FLINVAL, FLT_DIST, FLT_R, and FLT_LOOP outputs in the ACT function block.
H
2.2.5
-
11.13.14.2 Verifying the signals and settings
GUID-0FDCCF3B-63C5-463E-AD67-2AE3633E9CE9 v1
The Fault locator function LMBRFLO depends on other functions to work properly, that is, phase
selection information from distance protection function and analog information supplied by the trip
value recorder function. Check that proper binary start and phase selection signals are connected
and voltage and current signals are configured (parameter settings).
The result is displayed on the local HMI or via PCM600. Distances to faults for the last 100 recorded
disturbances can be found on the local HMI under
Main menu/Disturbance Records /Disturbance
#n(n = 1–100)/General Information
If PCM600 is used, the result is displayed on the recording list after upload, including loop selection
information.
Table 24:
Test settings
Parameter
Condition
I
Higher than 30% I
r
Healthy conditions
U = 63,5 V, I = 0 A & ZF = 0°
Impedance |Z|
Test point
Note:
•
Z
x
£
(X0 + 2 · X1)/3 For single-phase faults
•
Z
x
£
X1 For three and two phase faults
•
Z
x
£
(X0 + 2 · X1 XM)/3 For single-phase fault with mutual zero-sequence
current
Impedance angle Z
F
Test angle
•
Z
F
arctan[(X0 + 2 · X1) / (R0 + 2R1)] For single-phase faults
•
Z
F
arctan(X1/R1) For two-phase faults
11.13.14.3 Measuring the operate limit
M14955-48 v7
1.
Set the test point (|Z| fault impedance and Z
F
impedance phase angle ) for a condition that
meets the requirements in
2.
Subject the IED to healthy normal load conditions for more than the prefault recording time in
DRPRDRE function.
3.
Apply a fault condition.
Section 11
1MRK 511 403-UEN Rev. L
Testing functionality by secondary injection
200
Bay control REC670
Commissioning manual
© 2017 - 2022 Hitachi Energy. All rights reserved
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