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11KV Compoiste Polymer Surge Arrester

11KV Compoiste Polymer Surge Arrester

Packaging Details : portioned with foam, and then packed in carton
Delivery : generally within 15 days after payment confirmation
Payment Terms : T/T, L/C, Western Union, Money Gram
Place of Origin : China
Application : In medium-voltage distribution systems the arresters are widely spread over the whole network as they are normally directly arranged either, for instance, at the pole-mounted transformers, or at the cable terminations.
Samples : Charge
Minimum Order : 100pcs
Category : Belt Making Machinery Parts
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Product Description
Brief Introduction: It's mainly used to protect the transformer neutral from damage of atmospheric overvoltage or operation overvoltage. The last generation of surge arrester before the introduction of the metal-oxide arrester: the gapped silicone-carbide arrester, which is still being extensively used today. Safety and reliability are vital in high-voltage products and Wenzhou Mingneng Electric Co., Ltd is committed to pioneering improvements in performance for our customers at all levels. Our development teams work to generate a superior range of high performance products. All products developed using our extensive service experience and within the constraints of international standards including IEC and many national standards.

Product Feature
Non-tracking and low erosion rates in polluted an non-polluted environments, long term weather ability, resistance to thermal ageing, UV resistance, chemical resistance. Tough, tear and impact resistance.

Product Specification/Models
Certain designs of the polymer housed arresters were in fact impossible to construct until the gapless metal-oxide technique was introduced. As a major progress, metal oxide arresters could be built with only one single effective active element, namely the column of the metal oxide resistors. High demands are, however, made on these metal oxide resistors, as they combine all the functions, which previously had been shared among the different components of the gapped arrester. In this way they have to be ageing resistant while being subjected to constantly applied operating voltage. They must be able to absorb the energy injected during a discharge, and they should subsequently limit the follow current (leakage current) to value small enough for thermally stable operation. The metal oxide resistor column, together with the accompanying supporting construction comprises the active part of the arrester. The column consists of individual metal oxide resistors stacked on top of each other. The metal oxide resistors are almost always produced in a cylindrical form. Their diameter decisively determines the energy absorption and the current carrying capability. It is within a range of about 30mm when used for distribution systems and up to 100mm or more for high and extra-high voltage systems and special applications, for which high energy absorption capabilities are required.

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