ABB Relion 670 Series Commissioning Manual page 251

1MRK 506 371-UUS E
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 45: Test settings
Parameter
I
Healthy conditions
Impedance |Z|
Impedance angle ZF
11.13.5.1 Measuring the operate limit
1.
Set the test point (|Z| fault impedance and ZF impedance phase angle ) for a condition that
meets the requirements in table 45.
2. Subject the IED to healthy normal load conditions for at least two seconds.
3. Apply a fault condition.
Check that the distance-to-fault value displayed on the HMI complies with equations 106,
and
p
EQUATION123 V1 EN-US
in % for two- and three-pole faults
p
EQUATION124 V1 EN-US
in % for single-phase-to-ground faults
Line distance protection REL670
Commissioning manual
Condition
V = 69.3 V, I = 0 A & ZF = 0°
Test point
Note:
•
•
•
Test angle
•
•
108
Z
x
×
= ------ - 100
X1
×
3 Z
= ×
x 100
+ ×
X0 2 X1
© Copyright 2017 ABB. All rights reserved
Z £ (X0 + 2 · X1)/3 For single-phase faults
x
Z £ X1 For three and two phase faults
x
Z £ (X0 + 2 · X1 XM)/3 For single-phase fault with mutual zero-sequence
x
current
ZF arctan[(X0 + 2 · X1) / (R0 + 2R1)] For single-phase faults
ZF arctan(X1/R1) For two-phase faults
Testing functionality by secondary injection
(Equation 106)
(Equation 107)
Section 11
M14955-48 v5
107
245