Zinc Oxide Lightning Arrester

The surge arrester serves as the foundation for insulation coordination across various electrical equipment in the powersystem, including transformers, reactors, capacitors, generators, motors, PTs, CTs, circuit breakers, and contactors. Theprotective performance of the arrester determines the internal and externalinsulation criteria for allelectrical equipmentin the power system, such as short-term power frequency withstand voltage, lightning impulse withstand voltage, andoperationalimpulsewithstand voltaqeThe Metal Oxide Lightning Arrester, often referred to as the "Zinc Oxide Lightning Arrester," represents a new generationof lightning arresters that began to be popularized internationally in the 1980s by countries such as the United States andjapan, marking a significant advancement over conventional arresters. Following the comprehensive introduction of thistechnology in the mid-1980s, and through years of practical application, the performance of Ac lightning arrestersproduced by various specialized manufacturers now closely aligns with the most advanced products from countries likethe United States, japan, and Western Europe. Products that genuinely meet all international standards also fulfill therequirements oftheinternationallECstandards
The core operating component of this product is crafted from multi-element metal oxide powder, primarily zincoxide, offering superior nonlinear current-voltage characteristics, rapid steep wave response, and high currentcapacity. Gapped products feature self-blowing gaps and a uniform voltage distribution structure, which diminishdischarge dispersion and maintain a low impact coefficient.The use of composite insulation jackets aligns with the global trend toward miniaturized, safe, and maintenance.free power products. Polymer organic composite materials, compared to traditional inorganic materials likeceramics and glass, offer advantages such as compact size, lightweight, resistance to contamination, no need forcleaning, and resistance to explosions and vibrations. These characteristics make them the lightning protectioncomponent of choice in integrated and modular medium and high voltage power transmission and transformatiorequipment.