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Bulk porcelain bushings

A simple non-condenser bushing for low voltage and medium voltage applications may be a rod of conducting material inserted into a porcelain tube. This has a central current-carrying bolt, usually of copper, and the insulation is provided by a combination of the porcelain shell and the transformer oil.

Hitachi Energy  offers a wide portfolio of porcelain bushings for low voltage and medium voltage applications, including connecting flags for the insulators.

Product scope:

  • Oil-immersed distribution and power transformers
  • Low voltage and medium voltage applications
  • Range:
  •    - Um ≤ 3.6 kV, Ir ≤ 6500A
       - Um > 3.6 kV ≤ 52 kV, Ir ≤ 3150A
       - Um > 3.6 kV ≤ 52 kV, Ir > 3150A

 

Bushing Classification Related Standard Um Maximum Voltage (kV) Ir
Nominal Current (A)
Drawing
Porcelain Bushing Low Voltage 3,6 kV ≤ and 6.500 A ≤ DIN 42530 1,2 250  
1,2 630  
1,2 1.000  
1,2 2.000  
1,2 3.150  
EN 50386 1,2 250  
1,2 630  
1,2 1.000  
1,2 2.000  
1,2 3.150  
1,2 4.000  
DIN 42539 3,6 250  
3,6 630  
3,6 1.000  
3,6 2.000  
3,6 3.150  
In-house design 3,6 4.500  
3,6 6.500  
1,1 250  
1,1 630  
1,1 1600  
1,1 2500  
1,1 3150  
3,6 850  
3,6 1600  
3,6 2500  
3,6 3150  
3,6 4500  

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