Product Overview
The RW12-24 24kV Porcelain Drop-out Fuse Cutout is a robust outdoor high-voltage protection device, specifically engineered for 20kV/24kV overhead distribution networks and distribution transformers. Constructed with a high-grade, weather-resistant porcelain insulator, this fuse cutout offers superior mechanical strength, excellent insulation stability, and exceptional durability in harsh outdoor environments. It serves as a critical protective component, reliably interrupting overload and short-circuit currents to safeguard power transformers, lines, and other electrical equipment.
Compliant with international standards including IEC 60282-2, ANSI C37.41, and GB/T 15166.3, the RW12-24 series fuse cutout has undergone rigorous type testing, ensuring stable performance under extreme conditions such as high temperature, low temperature, high humidity, and pollution. Its reliable drop-out mechanism provides a clear, visible break upon operation, facilitating safe maintenance and rapid fault identification.
Spesifikasi Teknis
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Nama Parameter
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Standard Specification
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Remarks
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Model Number
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RW12-24/100, RW12-24/200
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Standard series for 24kV systems
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Tegangan Pengenal
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24kV (20kV-24kV system)
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Suitable for 20kV/24kV power grids, maximum system voltage ≤24kV
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Nilai Saat Ini
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100A / 200A
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Standard ratings, fuse link current ≤80% of fuse body rating
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Breaking Current
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100A: 8kA; 200A: 10kA
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Symmetrical breaking capacity, full breaking time ≤15ms
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Impulse Withstand Voltage (BIL)
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150kV
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1.2/50μs waveform, strong lightning protection
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Power Frequency Withstand Voltage
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70kV (dry); 55kV (wet)
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1-minute test duration, excellent insulation performance
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Creepage Distance
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600mm (standard)
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Suitable for Grade III-IV pollution areas, anti-pollution design
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Insulator Material
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High-strength alumina porcelain
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UV-resistant, frost-resistant, corrosion-proof, high mechanical strength
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Contact Material
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Tin-plated / silver-plated copper alloy
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Low contact resistance ≤80μΩ, arc-resistant, oxidation-resistant
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Fuse Tube Material
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Epoxy glass cloth tube + arc-extinguishing lining
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High-temperature resistant, strong arc-extinguishing capability
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Operating Temperature
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-40°C to +85°C
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Adapt to extreme climate conditions
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Pemasangan
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Pole-mounted / cross-arm
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Vertical installation, angle 25°±2° from vertical
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Berat
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Approx. 8.0 kg
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Sturdy structure, stable installation
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Dimensions
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520×400×140mm
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Standard mounting, compatible with common fittings
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Standar
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IEC 60282-2, ANSI C37.41, GB/T 15166.3
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Fully compliant with international standards
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Mechanical Life
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≥2000 operations
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Durable hinge mechanism, flexible operation
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Key Features & Advantages
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Premium Porcelain Insulation: Built with high-quality alumina porcelain for exceptional insulation, high mechanical strength, and resistance to UV rays, extreme temperatures, and chemical corrosion, ensuring long service life in harsh outdoor conditions.
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Superior Breaking Performance: Advanced expulsion-type arc-extinguishing design delivers reliable and rapid interruption of rated short-circuit currents (8kA-10kA), effectively protecting transformers and lines.
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High Pollution Resistance: Generous creepage distance (600mm) and specialized porcelain surface provide excellent resistance to fog, dust, and industrial pollution, suitable for heavy pollution areas.
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Visible Disconnection: The fuse tube drops visibly upon operation, creating an obvious air-break gap for safe maintenance and clear fault indication.
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Stable & Reliable: All metal components are hot-dip galvanized or plated for maximum corrosion resistance. The mechanical structure ensures precise contact and dependable drop-out action.
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Easy Installation & Maintenance: Standardized design fits common pole and cross-arm mounting brackets. Fuse links are easily replaceable, minimizing downtime.
Aplikasi
The RW12-24 24kV Porcelain Drop-out Fuse Cutout is primarily applied for:
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Overload and short-circuit protection for 20kV/24kV distribution transformers (up to 500kVA).
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Protection and sectionalization of 24kV overhead distribution lines and branch feeders.
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Wind farms, solar PV stations, and other renewable energy power systems at 20kV/24kV level.
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Industrial and mining enterprises, urban and rural power grids requiring robust outdoor protection.
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Areas with high pollution, coastal salt fog, and extreme weather conditions.
Optional Accessories
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Arc-shortening rod (for enhanced interrupting performance)
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NEMA standard mounting bracket
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Stainless steel fittings (for extreme corrosion resistance)
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Custom fuse links (10A to 200A)
Quality Assurance
Each unit is 100% factory tested for power frequency voltage, insulation resistance, and mechanical operation. Full type tests conducted per IEC 60282-2. Certificate of compliance available upon request.
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