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Related Concept Videos

Reclosers and Fuses01:26

Reclosers and Fuses

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Automatic circuit reclosers enhance the protection of distribution circuits by interrupting and auto-reclosing an AC circuit according to a preset sequence. They effectively manage temporary faults on overhead distribution lines, often caused by tree limbs or wildlife, by briefly disrupting service to improve overall reliability. However, contact with reclosers or energized broken conductors on the ground can pose serious hazards.
A comprehensive protection scheme for radial distribution...
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Applications of GIS: Disaster Management and Emergency Response01:29

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Geographic Information System (GIS) technology is essential for risk identification, action prioritization, and resource optimization in critical situations like flooding and earthquakes. By integrating spatial and demographic data, GIS provides a comprehensive framework for emergency response.GIS integrates data layers, like rainfall intensity, topography, elevation profiles, and river levels, to model high-risk flood zones. These layers assess areas susceptible to flooding based on their...
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Radial System Protection01:23

Radial System Protection

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Radial systems employ time-delay overcurrent relays to reduce load interruptions. When a fault occurs, the nearest breaker opens first, while upstream breakers remain closed due to longer delay settings. This approach ensures minimal disruption to the rest of the system.
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Distribution Reliability and Automation01:25

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Distribution reliability in electrical power systems is critical for ensuring an uninterrupted power supply to consumers at minimal cost. According to IEEE Standard Terms, reliability is the probability that a device will function without failure over a specified time period or amount of usage. For electric power distribution, this translates to maintaining continuous power supply and addressing customer concerns over power outages. Several indices, as defined by IEEE Standard 1366-2012, are...
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Zones of Protection01:16

Zones of Protection

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In power systems, the entire setup is divided into protective zones to isolate faults and protect the rest of the network. These zones include generators, transformers, buses, transmission lines, distribution lines, and motors. Each zone can be visualized as a separate room in a house, with each room protected by its own circuit breaker.
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Insulation coordination is the process of matching electric equipment's insulation strength with protective device characteristics to protect the equipment against expected overvoltages. This selection is based on engineering judgment and cost. Equipment can generally withstand short-duration high transient overvoltages, but repeated tests with identical waveforms can yield inconsistent results. As a result, standard impulse voltage waveforms are used for testing, defined by specific times...
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Scheduling Repair Resources for Post-Disaster Critical Infrastructure Systems: A Review of Models and Algorithms.

Min Xu1, Min Ouyang2,3, Chongyang Du2

  • 1School of Public Administration, Dongbei University of Finance and Economics, Dalian, China.

Risk Analysis : an Official Publication of the Society for Risk Analysis
|March 12, 2026
PubMed
Summary

This review synthesizes models for scheduling repair resources for critical infrastructure systems (CISs) after disasters. It highlights challenges and variations in models to improve urban resilience and restoration decisions.

Keywords:
critical infrastructure systemsnatural hazardsoptimizationrepair resource schedulingsolution algorithms

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Area of Science:

  • Disaster Management
  • Urban Planning
  • Infrastructure Engineering

Background:

  • Natural hazards threaten urban critical infrastructure systems (CISs).
  • Rapid recovery of post-disaster CISs is vital for socio-economic stability and urban resilience.
  • Resource scheduling for CIS repair is complex due to dynamic environments, interdependencies, and stakeholder demands.

Purpose of the Study:

  • To systematically review and synthesize existing repair resource scheduling models for post-disaster CIS recovery.
  • To highlight model variations, solution algorithms, and emerging challenges like climate change and urbanization.
  • To refine current frameworks and guide the development of more comprehensive recovery models.

Main Methods:

  • Systematic literature review of repair resource scheduling models in disaster recovery.
  • Categorization of model variants and extensions based on disaster types and infrastructure systems.
  • Analysis of algorithmic strategies and their applicability to different recovery scenarios.

Main Results:

  • A comprehensive overview of diverse repair resource scheduling models and their solution approaches.
  • Identification of research gaps and emerging challenges in post-disaster CIS recovery.
  • A framework for understanding and comparing different optimization strategies for infrastructure repair.

Conclusions:

  • Enhanced understanding of repair scheduling models is crucial for effective post-disaster recovery.
  • Addressing climate change and urbanization impacts is essential for future model development.
  • This review provides a foundation for developing more robust and adaptable urban infrastructure resilience strategies.