Test points that are to be considered for measurement accuracy of set impedance
reach are shown in Figure
and Table
.
RLd
R
jX
P1
P2
P3
P4
P5
P6
P7
P8
RLd
ArgLd
( )
( )
IEC15000429-2-en.vsdx
LineAng
Z1CircleStart
IEC15000429 V2 EN-US
Figure 13:
Proposed test points for phase-to-earth loop of circular
characteristic in solidly earthed system
Table 15:
Test points for phase-to-earth loop of circular characteristic
Test point
R
X
Comment
P1
Z1CircleStart ∗
cos(
LineAng) ∗
(1+
REOverRLStart)
Z1CircleStart ∗
sin(
LineAng) ∗
(1+
XEOverXLStart)
P2
0.8 ∗
Z1CircleStart ∗
cos(
ArgLd) ∗
(1+
REOverRLStart)
0.8 ∗
Z1CircleStart ∗
sin(
ArgLd) ∗
(1+
XEOverXLStart)
If 2I0 <
I0MinOp
P3
RLd
0
If 2I0 <
I0MinOp
P4
-
Z1CircleStart ∗
cos(
LineAng) ∗
(1+
REOverRLStart)
-
Z1CircleStart ∗
sin(
LineAng) ∗
(1+
XEOverXLStart)
P5
-0.8 ∗
Z1CircleStart ∗
cos(
ArgLd) ∗
(1+
REOverRLStart)
-0.8 ∗
Z1CircleStart ∗
sin(
ArgLd) ∗
(1+
XEOverXLStart)
If 2I0 <
I0MinOp
Table continues on next page
1MRK 506 377-UEN C
Section 10
Testing functionality by secondary injection
Railway application RER670 2.2 IEC
83
Commissioning manual
Summary of Contents for RELION RER670
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