750~1000kV Metal Oxide Surge Arresters 750~1000kV Metal Oksido Surge Arresters

Paliwanag

Ang 750~1000kV Metal Oxide Surge Arresters ay mga high-performance protective devices na disenyo para sa ultra-high voltage (UHV) power transmission systems na nag-ooperate sa 750kV hanggang 1000kV range. Ang mga arresters na ito ay naglalaman ng advanced metal oxide varistors (MOVs) na naka-integrate sa matibay na housing—madalas composite silicone rubber o high-strength porcelain—upang supilin ang severe transient overvoltages na dulot ng lightning strikes, switching operations, o system faults sa UHV grids. Ina-install sila sa mga key points tulad ng substations, transmission line terminals, at malapit sa critical equipment tulad ng transformers at circuit breakers upang ilihis ang massive surge currents papunta sa lupa habang ina-clip ang voltage spikes sa levels na ligtas para sa UHV infrastructure, tiyak na stable at reliable ang large-scale power transmission networks.

Katangian

• Disenyo na Tiyak para sa UHV：Rated eksklusibo para sa 750kV hanggang 1000kV systems, na may electrical parameters na optimized upang handlin ang extreme voltage stresses at high energy levels na unique sa ultra-high voltage transmission, tiyakin ang compatibility sa UHV grid equipment.

• Extreme Energy Absorption：Equipped na may high-density MOVs na capable na i-absorb ang enormous surge energy mula sa catastrophic events (e.g., direct lightning on UHV lines o substation faults), preventing insulation breakdown sa high-value UHV components.

• Ultra-Fast Response：Mikrosecond-scale reaction sa transient overvoltages na minimizes ang voltage overshoot, critical para sa protection ng UHV transformers at cables—kung saan kahit short-duration spikes ay maaaring magdulot ng irreversible damage.

• Enhanced Environmental Resistance：Housings (advanced composite o porcelain) na nagbibigay ng superior durability laban sa harsh conditions: UV radiation, extreme temperature fluctuations, heavy pollution, at coastal humidity, tiyakin ang reliability sa diverse UHV deployment environments (e.g., deserts, mountainous regions).

• Low Steady-State Leakage：Minimal leakage current sa normal operation na reduces ang energy loss at heat buildup, maintaining efficiency sa UHV grids kung saan kahit small losses ay maaaring makaapekto sa large-scale power transmission.

• Mechanical Robustness：Structurally reinforced upang matiis ang high wind loads, vibration, at installation stresses sa UHV substations, tiyakin ang stability sa large-scale infrastructure na may heavy equipment at long operational cycles.

• Compliance with UHV Standards：Nagpapatupad ng stringent international standards (e.g., IEC 60099-4, GB/T 11032 for UHV) at dumadaan sa rigorous testing para sa impulse withstand, thermal stability, at long-term performance, guaranteeing compatibility sa global UHV networks.

• Integration with UHV Monitoring：Maraming models na may built-in sensors para sa real-time monitoring ng leakage current at temperature, enabling integration sa UHV grid management systems para sa predictive maintenance at early fault detection.