Description

Tank-type Metal Oxide Surge Arresters for GIS are key protective devices specially designed for Gas Insulated Switchgear (GIS). They adopt a tank-type sealed structure and integrate high-performance Metal Oxide Varistors (MOV) internally, which can effectively suppress transient overvoltages caused by lightning, operating overvoltages, etc. in GIS systems. The arrester is directly installed inside GIS equipment. By quickly conducting surge currents to the ground terminal and clamping the voltage to a safe level, it protects core components in GIS such as circuit breakers, disconnectors, and busbars from overvoltage damage, ensures the stable and safe operation of the entire GIS system, and significantly reduces the risk of equipment failure and power outages.

Features

• High Adaptability to GIS Systems: Specifically designed for GIS equipment, its size and interfaces perfectly match the GIS system, enabling seamless integration into compact GIS cabinets without occupying extra space, thus meeting the installation requirements of miniaturization and integration of GIS equipment.

• Advantages of Tank-type Sealed Structure: Adopting a metal tank-type sealed design, it has extremely strong airtightness and mechanical strength, which can effectively isolate interference from dust, moisture, dirt, etc. in the external environment. It is suitable for various harsh environments such as high altitude, humidity, and heavy dust, ensuring the long-term stable operation of the arrester.

• Excellent Overvoltage Suppression Capability: The built-in Metal Oxide Varistor (MOV) has excellent nonlinear volt-ampere characteristics. When an overvoltage occurs, it can respond quickly, rapidly absorb and release huge surge energy, and limit the overvoltage within the tolerance range of GIS equipment, with remarkable protection effect.

• Low Energy Loss and Long Service Life: In normal operation, the MOV is in a high-resistance state, with extremely small leakage current and low energy loss, reducing unnecessary waste of electrical energy. At the same time, its material has high stability and strong anti-aging performance, with a long service life, reducing maintenance and replacement costs.

• Safe and Reliable Operation Guarantee: It has good thermal stability and short-circuit resistance. When encountering extreme overvoltage or short-circuit faults, it can withstand short-term large current impacts without dangerous situations such as explosion, providing reliable guarantee for the safe operation of the GIS system.

• Compliance with International Standards and Specifications: It is designed and manufactured in strict accordance with relevant international and domestic standards such as IEC and GB, and has passed a series of stringent electrical performance and environmental adaptability tests, ensuring that its performance indicators meet the high requirements of the GIS system and have wide applicability and interchangeability.