UV Resistant Drop-out Fuse Featuring Porcelain Insulator Ensuring Electrical Operation in Harsh Environmental Conditions
Product Description: The High Voltage Fuse Cutout, often referred to as a Drop-out Fuse, is an essential device used for overcurrent protection in outdoor medium-voltage distribution systems. These fuses are commonly found in networks operating within the voltage range of 11kV to 38kV. By integratin...
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Product Description:
The High Voltage Fuse Cutout, often referred to as a Drop-out Fuse, is an essential device used for overcurrent protection in outdoor medium-voltage distribution systems. These fuses are commonly found in networks operating within the voltage range of 11kV to 38kV. By integrating a fuse link with a hinged holder, the device offers both protection and functionality.
During fault conditions, the fuse link melts and causes the cutout to "drop out," thereby visibly disconnecting the circuit. This visible indication helps in quickly identifying the fault location. In addition to its automatic protection role, the fuse cutout can also be manually operated as an isolating switch, which is particularly useful for ensuring safety during maintenance work.
Designed to withstand harsh environmental conditions, the High Voltage Fuse Cutout is built with durability in mind. Its robust construction guarantees dependable performance in various weather scenarios. Because of these qualities, it has become a standard component for protecting transformers and distribution lines within medium-voltage power networks.
Features:
This device serves a dual purpose by functioning both as an automatic overcurrent protector and as a visible isolation point for manual switching. This combination helps to lower equipment costs by integrating two essential features into one unit.
When a fault occurs, the fused tube physically drops down, providing an immediate and clear visual indication of the fault location. This allows for rapid identification and repair, minimizing downtime.
The device employs an expulsion-type mechanism where gas generated by the liner swiftly extinguishes the arc. This ensures safe and effective interruption of fault currents, protecting the electrical system.
It is available in housings made from high-grade porcelain or hydrophobic polymer. These materials offer excellent resistance against ultraviolet radiation, pollution, and moisture, making the device suitable for various outdoor environments.
Technical Parameters:
The rated voltage options available for this equipment are 12kV, 15kV, 24kV, 27kV, and 38kV, depending on the specific system requirements.
The rated current ranges offered include 100A, 200A, and 400A for the holder, while the fuse links cover a spectrum from 1A up to 140A.
Regarding performance, the breaking capacity is rated at 6.3kA, 8kA, 10kA, and 12.5kA, measured in symmetrical RMS values to ensure reliable interruption capabilities.
This equipment complies with several international standards, including IEC 60282-2, IEEE C37.41, and ANSI C37.42, guaranteeing its quality and safety in operation.
The insulation is constructed from either high-strength porcelain or silicone rubber polymer, providing excellent durability and resistance under various environmental conditions.
Designed to operate efficiently in a wide temperature range from -40°C up to +55°C, this product is also suitable for use in heavy pollution zones classified as Class C, D, or E.
Applications:
This device is mainly installed on overhead distribution lines to provide protection for branch circuits and to limit the impact areas of electrical faults. Its primary function is to ensure the safety and reliability of the power distribution network by isolating problem sections quickly.
As the standard protection equipment for both pole-mounted and pad-mounted transformers, it plays a crucial role in preventing damage caused by overloads and short circuits. This helps in maintaining the operational integrity and extending the lifespan of these transformers.
Moreover, this protection device is extensively utilized in renewable energy collection systems, including solar farms and wind turbine installations. Its reliable and cost-effective high-voltage protection makes it an ideal choice for industrial power supply networks where stable and secure operation is essential.
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