Table 31:
Fault voltage and current for L1N / L2N / L1L2 faults
L1E
L2E
L1L2
Signal
Magnitude (Volt
or Amps)
Angle
(Degrees)
Magnitude
(Volt or Amps)
Angle (Degrees)
Magnitude
(Volt or
Amps)
Angle
(Degrees
)
1
UL
IECEQUATION15
084 V1 EN-US
55
0
55
0
55
0
2
UL
IECEQUATION15
085 V1 EN-US
55
180
55
180
55
180
1
IL
IECEQUATION15
086 V1 EN-US
0
1
1
2
ZA
ZA
UL
IECEQUATION15088 V1 EN-
US
0
1
1
2
ZA
ZA
UL
IECEQUATION15095 V1 EN-
US
0
0
1
1
ZA
UL
IECEQUATION1509
0 V1 EN-US
1
1
ZA
UL
IECEQUATION1
5121 V1 EN-US
2
IL
IECEQUATION15
087 V1 EN-US
0
180
0
1
2
2
ZA
ZA
UL
IECEQUATION15089 V1
EN-US
0
1
2
2
ZA
ZA
UL
IECEQUATION15099 V1 EN-US
1
2
ZA
UL
IECEQUATION1509
1 V1 EN-US
1
2
ZA
UL
IECEQUATION1
5122 V1 EN-US
Where:
1
ZA
= Positive sequence impedance from the point of measurement until the fault point.
This can be derived from:
1
1
1
XA
j
RA
ZA
IECEQUATION15093 V1 EN-US
(Equation 10)
Where:
XLj
p
XLi
XA
RLj
p
RLi
RA
tion
fault
i
tion
fault
i
1
sec
1
1
sec
1
1
1
IECEQUATION15094 V1 EN-US
(Equation 11)
0
ZA
= Positive sequence impedance from the point of measurement until the fault point.
This can be derived from,
0
0
0
XA
j
RA
ZA
IECEQUATION15097 V1 EN-US
(Equation 12)
Where:
XEOverXLj
XLj
p
XEOverXLi
XLi
XA
REOverRLj
RLj
p
REOverRLi
RLi
RA
tion
fault
i
tion
fault
i
2
2
0
2
2
0
1
sec
1
1
sec
1
IECEQUATION15098 V1 EN-US
(Equation 13)
Where:
RLi
The positive sequence resistance of i
th
section (Function setting)
RLj
The positive sequence of resistance of faulted section (function setting)
XLi
The positive sequence reactance of i
th
section (Function setting)
XLj
The positive sequence of reactance of faulted section (function setting)
Table continues on next page
Section 10
1MRK 506 377-UEN Rev. K
Testing functionality by secondary injection
148
Railway application RER670
Commissioning manual
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