Weather Resistant High Voltage Fuse Cutout Suitable for in Medium Voltage Electrical Distribution and Protection Systems
Product Description: The High Voltage Fuse Cutout, often referred to as a Drop-out Fuse, plays a crucial role as an overcurrent protection device in outdoor medium-voltage distribution systems. These systems generally operate within a voltage range of 11kV to 38kV, where reliable protection is ...
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Product Description:
The High Voltage Fuse Cutout, often referred to as a Drop-out Fuse, plays a crucial role as an overcurrent protection device in outdoor medium-voltage distribution systems. These systems generally operate within a voltage range of 11kV to 38kV, where reliable protection is essential to maintain network stability and safety.
This device combines a fuse element with a hinged holder, allowing it to automatically interrupt the circuit during fault conditions. When a fault occurs, the fuse link melts, causing the fuse cutout to "drop out" visibly, which provides a clear indication of the disconnection. Additionally, it can function as a manual isolating switch that facilitates safe maintenance procedures by allowing operators to disconnect the line physically.
Constructed to withstand harsh environmental factors, the High Voltage Fuse Cutout boasts a rugged design that ensures dependable operation across a variety of weather conditions. Its durability and effectiveness have made it a widely adopted method for protecting transformers and distribution lines, securing critical components within the power distribution network.
Features:
This device offers dual functionality by serving as both an automatic overcurrent protector and a visible isolation point for manual switching. This dual role helps in reducing overall equipment costs by combining two essential functions into a single component.
One of the key features is its visible fault indication. When a fault occurs, the fused tube physically drops down, providing an immediate and clear visual signal that pinpoints the fault location. This allows for rapid identification and repair, minimizing downtime.
The device incorporates superior arc extinguishing capabilities through an expulsion-type mechanism. Gas generated by the liner quickly suppresses the arc, ensuring the fault current is safely interrupted without causing damage to the equipment.
Designed to withstand harsh environments, it is available with high-grade porcelain or hydrophobic polymer housings. These materials offer excellent resistance against UV radiation, pollution, and moisture, making the device suitable for outdoor and industrial applications.
Application Areas
Technical Parameters:
The rated voltage options available for this product include 12kV, 15kV, 24kV, 27kV, and 38kV, depending on the specific system requirements. This range ensures compatibility with various electrical networks.
Regarding current ratings, the holders support 100A, 200A, and 400A. Additionally, the fuse links can range from as low as 1A up to 140A, providing flexibility for different circuit protection needs.
The breaking capacity is designed to handle symmetrical RMS currents of 6.3kA, 8kA, 10kA, and 12.5kA. This high breaking capacity ensures reliable operation under fault conditions.
Compliance with international standards is assured, including IEC 60282-2, IEEE C37.41, and ANSI C37.42. These certifications highlight the product’s quality and safety adherence.
The insulation material used is either high-strength porcelain or silicone rubber polymer. Both materials are selected for durability and excellent electrical insulation properties.
Operational temperature ranges from -40°C to +55°C, making the product suitable for harsh environmental conditions. It is also rated for heavy pollution zones, classified as Class C, D, or E, ensuring performance reliability in challenging settings.
Applications:
This device is mainly installed on overhead distribution lines to protect branch circuits and to confine the areas affected by faults. Its primary function is to limit the impact zones when electrical faults occur, ensuring the stability and safety of the power distribution network.
As the standard protective equipment for both pole-mounted and pad-mounted transformers, it plays a crucial role in shielding these transformers from damage caused by overloads and short circuits. By doing so, it helps maintain the longevity and reliability of the transformers in various settings.
Moreover, this protection device is extensively utilized in renewable energy collection systems, including solar farms and wind turbine installations. It is also commonly found in industrial power supply networks where dependable and cost-efficient high-voltage protection is essential, making it a versatile solution across multiple sectors.
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