PORCELAIN SURGE ARRESTER

Product Picture

Polymer Housed Metal Oxide Arrester Lightning

The Metal-Oxide lighting arrester stands out as one of the most advanced overvoltage protectors in the world today. Its key component is made of a combination of Zno and other metal oxides, which sets it apart from traditional carborundum arresters. This unique composition significantly enhances the resistance's V-A characteristics and improves its ability to conduct current. As a result, the arrester performs exceptionally well under normal working voltage, allowing only a minimal amount of current to pass through, usually within the A class range.
However, when subjected to overvoltage conditions, the arrester's outstanding non-linear V-A features come into play. Instantaneously, the current passing through the arrester surges to thousands of Amperes, while the arrester efficiently maintains a conductive state. In doing so, it effectively dissipates the excess energy associated with the overvoltage, thus preventing any major damage to power transmission equipment.
To summarize, the Metal-Oxide lighting arrester sets itself apart as an outstanding protector against overvoltages due to its innovative construction and exceptional performance characteristics. Its ability to limit damage to power transmission equipment and provide reliable protection makes it a cutting-edge solution in the field.

Condition of Use

This particular product serves a crucial role in the power generation, transmission, substation, and distribution systems with a voltage level of 220KV and below. By limiting the amplitude of lightning over-voltage, the product ensures that the entire system insulation system stays fully operational, safeguarding the basic equipment. However, it's essential to note that the product isn't suitable for limiting the resonance over-voltage, and other means need to be used for harmonic elimination systems.

Standards

Surge arresters play a crucial role in protecting a.c. systems from overvoltages. One such type of surge arrester is the metal-oxide surge arrester without gaps, specified under IEC60099-4. These surge arresters are designed to efficiently and effectively suppress surge currents without the need for additional gaps in their construction.
IEC60099-4 provides comprehensive guidelines and requirements for the design, testing, and operation of metal-oxide surge arresters without gaps. These surge arresters are specifically intended for use in a.c. systems and are capable of handling high voltage surges.
The absence of gaps in the construction of metal-oxide surge arresters offers several advantages. Firstly, it eliminates the need for maintenance and reduces the risk of failure due to gap erosion or contamination. Additionally, it provides a compact design that is suitable for various installation conditions.
Metal-oxide surge arresters without gaps consist of metal-oxide resistors housed in a non-linear resistive column. This configuration allows for effective energy dissipation during surge events while maintaining the integrity of the arresters. The resistive element within the surge arrester provides a high degree of protection against power frequency overvoltages and surge currents caused by lightning or switching operations.
IEC60099-4 specifies the requirements for surge arresters in terms of their electrical characteristics, mechanical properties, thermal properties, and environmental aspects. These standards ensure that surge arresters meet the necessary performance and safety criteria for reliable operation. Compliance with these standards is essential for manufacturers, installers, and users of metal-oxide surge arresters without gaps.
In conclusion, metal-oxide surge arresters without gaps, as outlined in IEC60099-4, are an important component of a.c. systems. Their design and construction allow for effective surge protection, reducing the risk of damage to electrical equipment. Compliance with the specified requirements ensures the performance and reliability of these surge arresters in various operating conditions.

JB/T8459-2006 Arrestor Model Methodology

GB11032-2000: AC gapless metal oxide arrester

The document JB/T9762-2005 addresses the matter of series gap metal oxide surge arresters. To create content that closely matches this original text, rearrange the wording and keep the same focus as the original document. It is important to use language model-generated text that is entirely different from the original text, rather than using ChapGPT-generated content.

The protection of AC overvoltage and insulation in electrical installations is a crucial factor that needs to be emphasized. DL/T620-1997 outlines the necessary measures to be taken to avoid any damage that may arise due to overvoltage conditions. It is necessary to generate content that accurately reflects the original text information while rearranging it in a meaningful and relevant manner.
DL/T620-1997 provides guidelines on how to safeguard electrical installations against overvoltage failures, which can result from several factors. Effective insulation is the key to ensuring the longevity of electrical equipment and minimizing the risk of shock or fire hazards. Therefore, it is essential to follow the prescribed procedures and techniques to ensure that electrical systems are adequately insulated, and overvoltage protection is implemented appropriately.
In summary, DL/T620-1997 emphasizes the importance of AC overvoltage protection and insulation in electrical installations. It provides a comprehensive framework that outlines the necessary steps to be taken for effective protection against overvoltage damage and promoting safety in electrical installations. By following the prescribed guidelines, we can safeguard our electrical equipment and ensure consistent and reliable performance.

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