110kV Composite Suspension Insulators

110kV Composite Suspension Insulators

What is the composite insulator?  What is the main component of the composite insulator?

Composite suspension insulator is composed of glass fiber epoxy resin core, silicone rubber shed and metallic fittings. The key trouble of interfacial electrical breakdown affecting the reliability of composite insulators used to be solved through the usage of fundamental injection compression technological know-how in silicone rubber shed. Glass metal core and the strain of the coupling of steel components undertake superior welding technology, geared up with automated acoustic detection system, excessive strength, stunning appearance, small size, mild weight, galvanized steel components corrosion, insulator can be used interchangeably with the porcelain insulator, shape and reliable, the product will now not harm the core, can provide full play to its mechanical strength.

The History of Composite Insulator

Composite insulator merchandise are used to insulate and droop wires in HV and UHV AC and DC transmission lines. In the early years, insulators had been more often than not used for electric powered poles (low voltage), and step by step developed into high-voltage wire connection towers with many disc-shaped or columnar insulators placing at one end. They are designed to amplify the creepage distance and are commonly made of glass, ceramic or silicone rubber, so they are referred to as insulators.

What are the advantages of composite insulators?  

1. Zero fee self-breaking, effortless to detectThe compound suspension aspect has the attribute of zero price self-breaking. As lengthy as the remark on the floor or in the helicopter, there is no want to board the rod to notice every piece, decreasing the labor depth of workers.The PRODUCT OF the delivered manufacturing line has an annual self-breaking price of 0.02-0.04%, which can store the renovation price of the line. The new floor of the glass insulator subjected to lightning burn in operation is nonetheless easy vitreous, and there is a toughened inside stress safety layer, therefore, it nevertheless keeps enough insulation components and mechanical strength.On the 500kv line, the dancing mess ups triggered via wire strolling on ice befell for many times, and the mechanical and electrical overall performance of the composite suspension insulator subjected to the dancing of wire did now not decay after testing.

2. Good self-cleaning overall performance and now not convenient to agingAccording to the established reflection of the electricity department, glass insulators are no longer convenient to accumulate grime and handy to clean. The glass insulators in the southern line are washed smooth after rain.The mechanical and electrical overall performance of the glass insulators on the traces in traditional areas is oftentimes sampled and measured. Thousands of records gathered exhibit that the mechanical and electrical overall performance of the glass insulators after 35 years of operation is essentially the identical as that earlier than delivery, and there is no growing old phenomenon.Main massive capacity, the string uniform voltage distribution, glass dielectric steady between 7 and 8, make composite insulator has a giant capability and foremost bunchy uniform voltage distribution, decreasing grounding wire aspect and insulator on the close to aspect voltage, so as to decrease the radio interference, minimize the corona loss and the reason of prolonging the existence of the glass insulator.

What are the types of composite insulators? 

Standard type, pollution resistant type, DC type, spherical type, aerodynamic type, ground type, electrified railway catenary.

Standard suspension glass insulator: U70 SXP-70 U100 SXP-100 U120 SXP-120 U160 SXP-160 U210 SXP-210 U240 SXP-240 U300 SXP-300.

Stain-resistant suspension glass insulator: U70BLP SXWP-70P U100BLP SXWP-100P U120BLP SXWP-120PU160BLP SXWP-210P U240BLP SXWP-210P.

What are the characteristics of composite insulators? 

Performance traits and provider stipulations of composite insulators 1. Small dimension and mild weight, 1/5~1/9 of porcelain insulators of the equal voltage level, convenient to transport and install. 2. Composite insulator has excessive mechanical strength, dependable structure, secure overall performance and giant protected operation margin, which gives a warranty for the line and secure operation. 3. Composite insulator has most excellent electrical performance, silicone rubber umbrella skirt has proper hydrophobicity and mobility, proper air pollution resistance, robust anti-pollution flashover ability, can function safely in heavy air pollution areas, and does no longer want guide cleaning, can keep away from zero price maintenance. 4. Composite insulator has the traits of acid and alkaline resistance, warmness getting old and electric powered resistance, excellent sealing performance, can make sure its inside insulation is no longer affected by means of moisture and so on. 5. Composite insulator has desirable brittleness resistance, sturdy shock resistance, and will now not purpose brittle breakage. 6. Composite insulators are exchangeable and can be used interchangeably with porcelain insulators

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