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There are several methods for the field testing of underground electric power cables which are grouped under the category of Type 1 Tests. These are intended to detect defects in the insulation of the cable system in order to improve the service reliability after the defective part is removed and appropriate repairs are performed.

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AC systems with a large number of power plants face the challenge of keeping all the generators in sync. The stability of such a system is defined by its technical parameters that ensure the ability of the system to resist perturbations. 

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At every stage in its development, the world’s electrical engineering has faced the need to create cables lines with high current-carrying capacity.

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Since 1993, on December 22, Ukraine has been celebrating Power Engineer’s Day, which is also observed by some countries of the region (Russia, Kirgizstan, Armenia, and Belorus). This is the time when we’d like to thank those who are involved in the energy sector for bringing power to our homes and businesses.

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Despite a number of groundbreaking developments in the power industry, the energy system is still dependent on fossil fuels, especially when the load on the electrical grid is high. With the world running out of oil and natural gas while facing ambitions low carbon emission targets, the need to find alternative and eco-friendly energy sources is becoming more and more pressing. 

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The technique of Arc Reflection (ARC)combines the surge wave generator (thumper) and the pulse echo technique (TDR) for the purpose of locating high resistance shunt faults and intermittent shunt faults.

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In the previous article we began introducing cable fault locating methods and discussed the surge wave generation, or thumping technique. Another time-proven cable fault locating method is time domain reflectometry (TDR), which has some variations, including the pulse echo, arc reflection, and impulse current. Here I am going to focus on the pulse echo method, its principle, benefits and associated issues.

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Cable fault locating can be quite challenging even though there is a number of fault locating techniques and quite a few tools to help out with underground cable faults.

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