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An electrode line is an electrical connection from a static inverter system to a ground level electrode with anode and cathode plates. It prevents corrosion and electromagnetic interference, allowing for stable transmission of medium voltage power to homes and businesses. The anode and cathode electrodes should be placed away from human settlements and underground cables and pipelines.
An electrode line is a component of a high voltage direct current (HVDC) transmission system. It is basically an electrical connection from a static inverter system, connecting a ground level electrode with both anode and cathode plates. The electrode line assists the static inverter plant in its normal operations as a terminal for HVDC systems, a critical function as the plant is responsible for converting direct current (DC) into three-phase alternating current (AC) for commercial and residential applications. A typical static inverter terminal usually houses transformers, DC switches, harmonic filters, AC switches, and capacitors.
The purpose of an electrode line in an inverter system is to prevent electrochemical corrosion of cables and equipment and to avoid electromagnetic interference in the surrounding areas. The high voltage direct current from the plant can cause corrosion of cables, sheaths and water pipes that pass under the station. Electromagnetic interference can affect radio signals, telephone signals or even railway lines installed nearby. An electrode line allows utility companies to be able to locate and connect the electrodes closest to the static inverter system using shorter cables. Thanks to the electrode line, there are fewer power outages and less interference with other electrical cables.
The supply of high voltage direct current is a crucial infrastructure for the development of any region. Energy utility companies see them as the backbone of electricity transmission. The main component of HVDC systems is the static inverter system which acts as an interface for the transmission of medium voltage power to homes and businesses. This is normally achieved through the use of electric controllable valves which are configured in three phase bridges. This configuration has several advantages including improving the stability of AC systems, safety from voltage fluctuations and reducing the need to increase the short-circuit capacity imposed on the AC switchboard.
Once a static inverter system has been installed in a particular area, it must be grounded. A ground electrode cannot simply be placed in the station itself due to certain risks. For example, a direct current can enter transformers through the primary neutral and cause DC saturation. Consequently, the anode and cathode electrodes should be placed in an area of sufficient thickness and conductivity. It should be away from human settlements and underground cables and pipelines.
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