GE MiCOM P40 Agile User Manual

3.2.2.5 EARTH FAULT QUADRILATERAL CHARACTERISTICS SUMMARY
The inputs to the comparators used for the earth-fault Quadrilaterals are summarised in the following table:
Zone Line S1 S2 Condition
Zone 1 Impedance Reach
Vph - Iph.Z
replica
I
LAG
∠ σ
∠S1 -∠S2 < 0º
Zone 1 Reverse Impedance Reach
Vph - Iph.Z’
replica
I
LAG
∠-3º
∠S1 -∠S2 > 0º
Forward or Offset zones (except
Zone 1)
Impedance Reach
Vph - Iph.Z
replica
I
LEAD
∠ σ
∠S1 -∠S2 < 0º
Forward or Offset zones (except
Zone 1)
Reverse Impedance Reach
Vph - Iph.Z’
replica
I
LAG
∠-3º
∠S1 -∠S2 > 0º
Reverse Impedance Reach
Vph + Iph.Z
replica
-I
LEAD
∠ σ
∠S1 -∠S2 < 0º
Reverse Reverse Impedance Reach
Vph + Iph.Z’
replica
-I
LAG
∠-3º
∠S1 -∠S2 > 0º
Forward or Offset Resistive Reach
Vph - Iph.R
LP
Iph.Z
replica
∠S1 -∠S2 > 0º
Forward or Offset Reverse Resistive Reach
Vph - Iph.R’
LP
Iph.Z
replica
∠S1 -∠S2 < 0º
Reverse Resistive Reach
Vph + Iph.R
LP
-Iph.Z
replica
∠S1 -∠S2 > 0º
Reverse Reverse Resistive Reach
Vph + Iph.R’
LP
-Iph.Z
replica
∠S1 -∠S2 < 0º
If dynamic tilting is selected, then:
If I
LEAD
is I2 the lines are dynamically tilted up from the fixed angle (Forward sense)
● If I
LEAD
is Iph, the fixed tilt applies.
● If I
LAG
is I2, the lines are dynamically tilted down from the fixed angle (Forward sense)
● If I
LAG
is Iph, the fixed tilt applies.
If fixed tilting is selected, then he current input quantity for S2 is Iph in all cases.
The positive sequence reach settings used for the Earth-Fault Quadrilateral characteristics are summarised in the
table below:
Zone
Type Impedance Reach Z Reverse Impedance Reach Z’ Resistive Reach R
Reverse Resistive
Reach R’
1 Ph-Earth Forward Z1 Gnd. Reach * (1 + kZN) 0.25 Z R1 Gnd Resistive 0.25 R
2 Ph-Earth Forward Z2 Gnd. Reach * (1 + kZN) 0.25 Z R2 Gnd Resistive 0.25 R
3 Ph-Earth Forward Z3 Gnd. Reach * (1 + kZN) 0.25 Z R3 Gnd Resistive 0.25 R
3 Ph-Earth Reverse Z3 Gnd. Reach * (1 + kZN) 0.25 Z R3 Gnd Resistive 0.25 R
3 Ph-Earth Offset Z3 Gnd. Reach * (1 + kZN) Z3’ Gnd Rev Rch * (1 + kZN) R3 Gnd Resistive R3’ Ph Res. Rev
4 Ph-Earth Reverse Z4 Gnd. Reach * (1 + kZN) Z R4 Gnd Resistive 0.25 R
P Ph-Earth Forward ZP Gnd. Reach * (1 + kZN) 0.25 Z RP Gnd Resistive 0.25 R
P Ph-Earth Reverse ZP Gnd. Reach * (1 + kZN) 0.25 Z RP Gnd Resistive 0.25 R
P Ph-Earth Offset ZQ Gnd. Reach * (1 + kZN) ZP’ Gnd Rev Rch * (1 + kZN) RP Gnd Resistive RP’ Gnd Res. Rev
Q Ph-Earth Forward ZQ Gnd. Reach * (1 + kZN) 0.25 Z RQ Gnd Resistive 0.25 R
Q Ph-Earth Reverse ZQ Gnd. Reach * (1 + kZN) 0.25 Z RQ Gnd Resistive 0.25 R
Q Ph-Earth Offset ZQ Gnd. Reach * (1 + kZN) ZQ’ Gnd Rev Rch * (1 + kZN) RQ Gnd Resistive RQ’ Gnd Res. Rev
where k
ZN
= (Z
0
- Z
1
) / 3Z
1
and is defined by two settings: kZN Res Comp and KZN Res Angle.
3.3
QUADRILATERAL CHARACTERISTIC FOR PHASE FAULTS
Quadrilateral characteristics are available for phase fault protection. A mix of Directional Forward, Directional
Reverse, and Offset characteristics is available. Zone 1 and Zone 2 are Directional Forward. Zone 4 is Directional
Chapter 7 - Distance Protection P543i/P545i
162 P54x1i-TM-EN-1

GE MiCOM P40 Agile Specifications

General

Brand	GE
Model	MiCOM P40 Agile
Category	Control Unit
Language	English