Arcing horns (sometimes arc-horns) are projecting conductors used to protect insulators or switch hardware on high voltage electric power transmission systems from damage during flashover.

Sep 19, 2016 · Arcing Horns bypasses the high voltage across the Insulator using air as a conductive medium between the Horns. The small gap between the horns ensures that the air between them breaks down resulting in a flashover and conducts the voltage surge rather than cause damage to the insulator.

Dec 21, 2022 · Arcing horns are an inexpensive form of overvoltage protection. They are employed mainly as lightning protection. Their function is to prevent damage to equipment that would be caused by high levels of voltage by providing an …

Discover how to optimize arcing horn designs for reliable high-voltage protection using EMS's advanced simulation capabilities.

Arcing horns are used to protect the transmission conductors, insulators, transformers bushings and other transmission equipments from lightning high voltages, transient voltages and surge voltages. Arc horns are working under the principle of arcing.

Feb 12, 2025 · Arcing horns work by bypassing high voltage (HV) across the insulator and using air as a conductive channel. The small distance between the horns guarantees that the air between them breaks down, causing a flashover and conducting the voltage surge rather than damaging the insulator.

Standard Arcing Horns have no loop splitting or load break capability and very limited line dropping capability. They are often utilized on switches to minimize the wear of the main contacts.

Arcing horns provide a path for flashover to occur that bypasses the surface of the protected device. Horns are normally paired on either side of an insulator, one connected to the high voltage part and the other to ground, or at the breaking point of a switch contact.

May 21, 2009 · Arcing horns are protective devices that are constructed in the form of projections in the conducting materials on both sides of an insulator. Arcing horns are fitted in pairs. Thus in transmission lines they are found on the conducting line …

In this paper, we focus on the insulation coordination of arcing horns on the electrode lines of a 5000 MW, ±800 kV high voltage direct current (HVDC) system. The protection performance of arcing horns are determined by the characteristics of …