Substation Testing & Maintenance
Vacuum Interrupter Testing for Circuit Breakers
Circuit Breaker Time and Motion Testing
Substation Testing & Maintenance
Properly Grounded Substations
Adequate utility grounding improves power quality, but more importantly, it is essential for worker safety as well as public protection. Design is critical in maintaining a safe equipotential environment all around the substation.
Construction is important to accommodate fault currents without leaving the substation with dangerous potential gradients.
A tester must establish a sufficiently low resistance to remote earth so that operation remains within safe parameters. Similarly, safe step and touch potentials must be...
Related Articles
Circuit Breaker Time and Motion Testing
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FERC Complaint Targets Duke, PJM Transmission Planning
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Power Transformer Failures
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Leakers, What a Mess!
Electric Substation apparatus, transformers and circuit breakers, are the workhorses of the electric transmission grid. Our focus in this article is on the issue of dielectric media leaks. Specifically, oil in large power transformers and oil or SF6 gas in power circuit breakers. Oil and gas leaks...
FERC Complaint Targets Duke, PJM Transmission Planning
A coalition of large energy consumers and ratepayer advocates has filed a complaint with the Federal Energy Regulatory Commission (FERC), urging the agency to prohibit transmission owners from independently planning "local" transmission projects exceeding 100 kilovolts (kV). The coalition argues...
High Voltage Direct Current (HVDC) Substations: Revolutionizing Long-Distance Power Transmission
High Voltage Direct Current (HVDC) technology revolutionizes long-distance power transmission, offering improved efficiency and reliability over traditional alternating current (AC) systems. This article explores the latest developments and applications of HVDC substations, providing a technical...
Cybersecurity in Modern Substations: Protecting the Grid from Emerging Threats
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The Role of Digital Twins in Substation Management and Grid Optimization
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Contact Material Recycling and Sustainability in Electronics
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