Blocking of distance relays zone3 under load encroachment conditions using decision tree technique

Chaudhari, Narendra S.; Hinge, Trupti P.; Dambhare, Sanjay

doi:10.1109/poweri.2016.8077248

Cited by 3 publications

(2 citation statements)

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“…3. In the diagram, the protected line section, and the zones of protection are defined as zone 1, zone 2 and zone 3 forward or reverse [19], [37]- [38]. Zone 3 forward or zone 3 reverse are applied in accordance with the requirements of a given line section at a particular substation.…”

Section: B Traction Power System Protectionmentioning

confidence: 99%

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Fault Analysis of the Gautrain 2 × 25 kV AC Traction Power Supply System Using Disturbance Fault Records and On-Site Testing

Moyo

Bansal

Naidoo

2021

IEEE Systems Journal

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A typical 2×25 kV traction power supply system consists of both primary and secondary equipment housed in control rooms, and the traction overhead wiring (OHW) that runs between the substations. Substation secondary equipment consists of the protection and control intelligence electronic devices (IEDs) known as relays. Each section of the OHW between the substations is protected by a set of two relays at both ends of a line for impedance protection and their backup relays. At substations facing the sections at the end of line where there is no other substation on the other end, usually overcurrent and earth fault protection is used. At the substations, there are disturbance fault recorders installed or relays equipped with a capability to record and store disturbance fault records (DFRs). Analysis of these fault records makes a significant contribution in the efficient running of a traction system of the Gautrain. A combination of analysis of the faults that occur in the OHW as recorded and stored in the relays, as well as the performance of the IEDs and the protection settings using on-site tests are a subject of this paper.

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Section: B Traction Power System Protectionmentioning

confidence: 99%

“…Zone 3 forward or zone 3 reverse are applied in accordance with the requirements of a given line section at a particular substation. The train load areas during normal operation and during regenerative braking are also shown in the diagram [19], [38].…”

Section: B Traction Power System Protectionmentioning

confidence: 99%