±500～±1100kV DC Metalla Oxidativa Fulguratores

Descriptio

±500～±1100kV DC Metal Oxide Surge Arresters sunt dispositiva protectiva critica pro systemis de transmissione per directum currentem (HVDC) operantibus in gradu ±500kV ad ±1100kV. Haec arresters integra varistores de oxydo metallici (MOVs) in casas robustas (saepe compositas vel porcelanas) ut supprimant overvoltages transitorias in retibus DC - sicut quae causantur ab fulguribus converter stationis operationibus commutationis aut defectibus systematis. Installata in stationibus converter HVDC lineis transmissionis et iuxta instrumenta clavium sicut valvas et transformatores divellant currentes surge excessivos ad terram dum voltus claudunt ad limines tutores. Mitigando pericula overvoltage custodiunt integritatem infrastructurae HVDC assecurant stabilem transmissione inter retibus et reducunt downtime ex damno instrumentorum.

Features

• HVDC Voltage Range Optimization：Adaptata pro systemis DC ±500kV ad ±1100kV cum parametri nominati precise concordantes ad unica demanda retibus high-voltage direct current. Designata ad manegare characteristica currentis unidirectionalis et stress DC sustentatus assecurans performance fideliter in rete longinqua HVDC transmissionis.

• Robust Housing & Environmental Resistance
  Casae (rubber silicone compositae vel porcellana fortis) offerunt durabilitatem superiorem: resistentia ad UV radiationes temperaturas extremas et pollutionem assecurat aptitudinem pro ambientes exteriores duri (ex desertis regionibus altitudinis). Optiones compositae addunt designum levis et hydrophobicitatem ut reducant pericula flashover.

• Handling Polarity & Transient Stresses：Engineered to withstand polarity reversals and DC-specific transients (e.g., converter-generated overvoltages). Unlike AC arresters, they maintain stability under sustained unidirectional voltage, critical for protecting HVDC valves and converter transformers from long-duration overvoltage exposure.

• High Energy Absorption Capacity：Capable of absorbing large amounts of surge energy from severe events (e.g., direct lightning on DC lines or converter faults). This high energy handling ensures they can mitigate even extreme overvoltages without degradation, enhancing HVDC system resilience.

• Low Maintenance & Long Lifespan：Stable MOV performance under DC stress reduces drift in leakage current, minimizing maintenance needs. Housings resist aging and corrosion, while robust internal components extend service life to 20+ years, aligning with the long operational cycles of HVDC projects.

• Compliance with Global Standards：Meets international standards for HVDC arresters (e.g., IEC 60099-8, IEEE C62.34), ensuring compatibility with global HVDC systems. Rigorously tested for DC voltage endurance, impulse current withstand, and thermal stability to guarantee safe operation in critical infrastructure.

• Integration with HVDC Control Systems：Many models support integration with HVDC monitoring systems, featuring sensors to track leakage current and temperature. This enables real-time performance monitoring, facilitating predictive maintenance and early fault detection in large-scale DC grids.