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

Paglalarawan

Ang 750~1000kV Metal Oxide Surge Arresters ay mga high-performance protective devices na in 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 rugged housings—mga 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. Ininstall sa mga key points tulad ng substations, transmission line terminals, at malapit sa critical equipment tulad ng transformers at circuit breakers, ang mga ito ay nagpapadala ng massive surge currents papunta sa lupa habang nag-clamp ng voltage spikes sa levels na ligtas para sa UHV infrastructure, tiyak na nagbibigay ng stability at reliability sa large-scale power transmission networks.

Mga Katangian

• UHV-Specific Design：Rated exclusively para sa 750kV hanggang 1000kV systems, na may electrical parameters na optimized upang handle ang extreme voltage stresses at high energy levels na unique sa ultra-high voltage transmission, tiyak na compatible sa UHV grid equipment.

• Extreme Energy Absorption：Equipped with high-density MOVs capable of absorbing 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：Microsecond-scale reaction to transient overvoltages minimizes voltage overshoot, critical para sa protection ng UHV transformers at cables—kung saan kahit short-duration spikes ay maaaring mag-cause ng irreversible damage.

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

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

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

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

• Integration with UHV Monitoring：Many models feature 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.