GEK-98846A
35
Zone 1 or zone 2 distance measuring units:
DMUZIAG, DMUZlBG, DMUZ1CG, DMUZ1AB, DMUZlBC, DMUZlCA.
Zone 3 distance measuring units:
DMUZ3AG, DMUZ3BG, DMUZ3CG, DMUZ3AB, DMUZ3BC, DMUZ3CA.
Fault report:
In the case of a trip the values mentioned below are saved as a fault
report:
- Prefault values IA. IB, IC, and I0.
- Prefault values VA, VB and VC.
- Prefault values IA, IB and VC.
- Time label: date and time.
- Fault distance in km or Miles. (MLP3000 only)
- Fault type: AG, BG, CG, ABG, BCG, CAG, AB, BC, CA, 3PH.
- Type of trip (Z1, Z2, Z3, ROD, LPU)
Using the Mlink program, the events can be saved in an ASCII file, and afterwards
they can be edited and the waves and flags can be displayed using the graphics processor
MLPDATA.
4.14 FAULT LOCATOR (MLP3000).
This function provides, in each oscillographic register fault report, the location in the
line where the fault has been produced and also what type of fault it is.
Phase selectors are used to determine the type of fault. These selectors are
independent from the measuring units.
Once the measuring units have detected a fault in any of the zones protected by the
relay and the protection has tripped, the phase selectors determine the type of fault based
on the presence and angular relations of the sequence current.
Figure 12 shows the phase selectors algorithm:
This algorithm requires only the current phasors of the three phases. From these it
obtains the zero sequence currents, positive and negative referenced to phase A (the
algorithm may be applied in the same way for the sequence currents referenced to another
phase).
This algorithm requires the line data and the fault currents and voltages.
4.15 CURRENTS OR VOLTAGE LOG.
The MLP program includes an hourly register of currents:
Содержание MLP1000
Страница 94: ...GEK 98846A 93 Figure 1 System diagram with MLP CPR and TTI ...
Страница 95: ...GEK 98846A 94 Figure 2 Case dimensions and drilling form 1 rack ...
Страница 96: ...GEK 98846A 95 Figure 3 1 External Connections MLP1000 ...
Страница 97: ...GEK 98846A 96 Figure 3 2 External Connections MLP1000 ...
Страница 99: ...GEK 98846A 98 Figure 3 4 External Connections MLP1000 ...
Страница 100: ...GEK 98846A 99 Figure 3 5 External Connections MLP2000 ...
Страница 101: ...GEK 98846A 100 Figure 3 6 External Connections MLP2000 ...
Страница 103: ...GEK 98846A 102 Figure 3 8 External Connections MLP2000 ...
Страница 104: ...GEK 98846A 103 Figure 3 9 External Connections MLP3000 ...
Страница 105: ...GEK 98846A 104 Figure 3 10 External Connections MLP3000 ...
Страница 107: ...GEK 98846A 106 Figure 3 12 External Connections MLP3000 ...
Страница 108: ...GEK 98846A 107 Figure 4 Protection Logic ...
Страница 109: ...GEK 98846A 108 Figure 5 1 Trip decision diagram ...
Страница 110: ...GEK 98846A 109 Figure 5 2 Trip decision diagram ...
Страница 111: ...GEK 98846A 110 Figure 5 3 Trip decision diagram ...
Страница 112: ...GEK 98846A 111 Figure 5 4 Trip decision diagram ...
Страница 113: ...GEK 98846A 112 Figure 6 1 Z1X protection scheme ...
Страница 114: ...GEK 98846A 113 Figure6 2 ACCZ2 Protection scheme ...
Страница 115: ...GEK 98846A 114 Figure7 LPU function diagram ...
Страница 116: ...GEK 98846A 115 Figure 8 1 ROD function logic ...
Страница 117: ...GEK 98846A 116 Figure 8 2 ROD function diagram ...
Страница 118: ...GEK 98846A 117 Figure 9 1 DD function logic ...
Страница 119: ...GEK 98846A 118 Figure 9 2 DD function diagram ...
Страница 120: ...GEK 98846A 119 Figure 10 1 FF function logic ...
Страница 121: ...GEK 98846A 120 Figure 10 2 FF function diagram ...
Страница 122: ...GEK 98846A 121 Figure 11 1 Recloser diagram ...
Страница 123: ...GEK 98846A 122 Figure 11 2 Recloser Diagram ...
Страница 124: ...GEK 98846A 123 Figure 11 3 Recloser Diagram ...
Страница 125: ...GEK 98846A 124 Figure 12 Fault selector ...
Страница 126: ...GEK 98846A 125 Figure 13 Menu Tree Diagram ...
Страница 127: ...GEK 98846A 126 Figure 14 MLP3000 Settings and data ...
Страница 128: ...GEK 98846A 127 Figure 15 Connection scheme for relay tests ...
Страница 129: ...GEK 98846A 128 Figure 16 Power swing diagram function ...
Страница 130: ...GEK 98846A 129 Figure 17 Mho Reactance characteristics of the MLP ...
