Yuanneng high voltage fuse cutout is the most commonly used short-circuit protection switch for distribution branch lines and transformers. The working principle of drop-out fuses is based on the thermal protection characteristics of the melting fuse link. When a short circuit fault or overload occurs in the circuit, the current will increase sharply, causing the fuselink to heat up and eventually melt. Once the link melts, the fuse will automatically drop, isolating the circuit from the power system, preventing the fault from continuing to expand, and protecting the safety of equipment and lines. It has the characteristics of economy, convenient operation, and strong adaptability to outdoor environments. With an obvious disconnection point and the function of isolating switches, our product can reduce the scope of power outages and create a safe working environment for maintenance of lines and equipment when it is installed on lines.
Fuse cutout can be installed on the high-voltage side of the transformer on the pole, where the transformer and the capacitor are connected to the line. The drop-out fuse effectively plays the role of overload protection and short-circuit protection in the circuit. At the same time, it can also be installed at the end of a long line or on a branch line. This approach can provide extended protection to areas that cannot be protected by relays. The structure of the drop-out fuse is not complicated but relatively simple, and it is also very economical in terms of price, and it does not require a lot of effort in future maintenance. Because the small size is convenient for installation, the fuse is used in the distribution network been widely used.
Appearance and Dimension Check
The assembly must be compact, firm, and installed properly, operated flexibly Steel parts and copper parts should be without glitches and other defects Dimension should be in according with values specified on drawing The nameplate and accessories should be completed.
Mechanical and Operation Test
The assembly must be compact, firm, and installed properly, operated flexibly Steel parts and copper parts should be without glitches and other defects Dimension should be in according with values specified on drawing The nameplate and accessories should be completed.
Power Frequency Withstand Voltage Test
Our fuse cutout can be subjected to 1 min power-frequency voltage dry tests, as specified by IEC 60060.
Galvanized Layer Inspection: ISO 1461:2009
Avergae minimum coating thickness will be ≥85μm, 600g/m2
To-earth Insulation Resistance Detection
To-earth insulation resistance ≥15GΩ
You need to consider what type of fuse cutout you need, such as ceramic material or silicone rubber material. Ceramic fuse cutout are bird-proof and are not prone to deformation or cracking when used in outdoor environments. Polymer fuse cutout have higher strength and are lighter in weight. Please send local market popular styles to our sales staff so that we can recommend the suitable types.
You need to pay attention to the required electrical performance, including rated voltage, lightning and power frequency withstand voltage, the creepage distance requirement which based on local pollution protection level, and breaking current and rated current requirements that the fuse cutout need to meet.
Another thing need to be considered is to know about international standards, such as IEC 60282 and ANSI/IEEE C37.41, ANSI C37.42. Yuanneng follow the standards in the design, manufacturing, and inspection of the products. We provide you with quality products at reasonable prices. If you need test report for reference, welcome to contact us.
Finally, you need to pay attention to fuse cutout packaging. Overseas orders often have long voyages, especially in LCL delivery, the transportation method will be changed several times. Porcelain fuse cutout is fragile, polymer fuse cutout are easily deformed under pressure, so a good packaging method is crucial. Yuanneng normal packing will be carton+ pallet. Pallets securing your primary packaging (and your product) in a stack to facilitate movement and storage.
Established in 2007, Yuanneng Power lntegrate Production,Development, Salesand Service Together in the Industry of Compositelnsulator, Fuse Cutout, SurgeArrester, Disconnecting Switch etc.
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