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Explore power transmission — components, line design, conductors, and techniques for efficient high-voltage energy transfer over long distances.
The corona effect is a natural electrical phenomenon. It occurs on EHV and UHV transmission lines. It may also occur inside substations on the live parts of high-voltage equipment. Cause of the Corona Effect The voltage level of transmission lines and live equipment is very high in EHV systems. Therefore, the electric field intensity surrounding … Read more
Before entering the topic of line differential protection, or simply differential protection of a transmission line, we shall first recall our concept of differential protection. Actually, the differential protection used for a transmission line is called line differential protection. We have already heard about the differential protection of transformers, busbars, etc. The same principle is … Read more
A Digital Teleprotection Coupler (DTPC) is often referred as a Digital Protection Coupler (DPC). It serves as a high-speed, reliable interface for transmitting protection commands between substations over a communication medium (OPGW). Typically it is used for carrier protection of transmission lines. Working Principle First, a protective relay such as a digital distance relay or … Read more
Type Tests as per IS 398 Part-5 Routine Tests on ACSR Conductors These tests are performed as per IS 398 Part-5 Acceptance Tests on ACSR Conductors as per IS 398 Part-5
Type Tests on GSS Earth Wire All the type tests are performed on a single strand of sampled length. Routine Tests GSS Earth Wire Acceptance Tests of GSS Earth Wire