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Changsha Power Electric Co.,Ltd. 86-731-8465-7833;
20NF250A Porcelain Power Line Insulators

20NF250A Porcelain Power Line Insulators

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    20NF250A Porcelain Power Line Insulators


    24kV Porcelain Power Line Insulators


    20NF250A Power Line Ceramic Insulators

  • Color
  • Material
    Porcelain C-110
  • Application
    Transmission And Distribution Of Electric Power
  • Standard
  • Sample
  • Oem
  • Size
    Customized Size
  • Pack
    Standard Export Packing
  • Place of Origin
  • Brand Name
  • Model Number
  • Minimum Order Quantity
  • Price
  • Packaging Details
  • Delivery Time
  • Payment Terms
    T/T, L/C
  • Supply Ability

20NF250A Porcelain Power Line Insulators


IEC standard HV general used transformer porcelain bushing / OEM available 





DIN 42531 Height(mm) Creepage distance (mm) Power frequency withstand voltage(kV) Lightning impluse withstand voltage(kV) Weight(kg)
20NF250 385 450 50 125 5.1



Bushing insulator is used between the transformer rectifier and the discharge electrode suspension of an ESP for leading high voltage into the electric filed, functioning as insulating and supporting of the bus rod. By its own structure it is divided into two types: pure ceramic insulator and combined insulator.





1. We specially design and manufacture this type of transformer bushing insulators from Bangladesh customers. It is very popular product for HV terminal of oil type transformers.

2. We choose high aluminum porcelain as raw material. During manufacturing process, We control every quality point very strictly. So final products are with very qualified performance.

3. Except brown glaze , we can also offer white , light grey , green color etc. 





The bushings are used for oil type distribution transformer.



Competitive advantages:


1. Our product price are much cheaper, at the same time, 11KV HV bushing insulator are with good quality both inner quality and finish.

2. We offer very fast delivery time, because such product are in mass production in whole year, so delivery time are very fast. We can deliver 4~ 5 x20'GP per month for new customers.

3. Also customer can choose insulator package way : carton only or carton box with wooden base pallets. In a short word, we are changing based on different customer's requirement.

4. If required, we can also supply related copper conductor, brass cover, O-rings, fixing pins, flanges etc. We have supplied such product more than 5 years , there are no any negative feedback from customers. And they are very satisfied with the quality and our service.