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RTDS Relay Protection Simulation
RTDS Technologies' RSCAD software suite, running on the company's purpose-built NovaCor and PB5 hardware platforms, delivers true electromagnetic-transient (EMT) simulation at time steps as small as 2 µs — fast enough to close the loop with physical hardware in real time. Digital simulation allows protection equipment to be subjected to virtually all possible faults and operating conditions in a controlled, flexible environment. PTI Consulting uses hardware-in-the-loop tests to simulate complete protection and control schemes within the power environment using real-time digital simulation (RTDS), helping improve complex power system protection and control studies.
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Principles of Relay Protection Simulation Operation
Perform power system simulations of selected faults and observe how a given protection principle (overcurrent, impedance, and differential) works. Set the relays for a given power system. Verify by simul.
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ADSS Optical Cable Corrosion Investigation
This paper proposes a new method for electrical corrosion assessment of ADSS optical cables based on leakage current characteristic analysis. Firstly, ADSS cable samples are subjected to salt spray treatment for varying durations, and the leakage current of each sample is. All-dielectric self-supporting (ADSS) cable is a type of optical fiber cable that is strong enough to support itself between structures without using conductive metal elements. It is used by electrical utility companies as a communications medium, installed along existing overhead transmission. During operation, the ADSS optical cable, which is under tension, is in a strong electromagnetic field in the space around the conductor. The capacitive coupling between the optical cable and the conductor and the earth puts it in a position of spatial potential. Jiangyin Xi Neng Industry Company Limited, Jiangyin Jiangsu 214400, China 2.
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