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What is the aluminum strip in a transformer?

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• What is the aluminum strip in a transformer?

• What is the aluminum strip in a transformer?

  aluhm > 12-13-2017, 01:18 AM

  Transformer aluminum strip is the key raw material for the manufacture of transformer windings, it is made by rolling and cutting of smelting aluminum ingot. As aluminum strip is one of the most popular products of Haomei Aluminum, it my turn to introduce the main product- transformer aluminum strip to you all. According to the use, the transformer aluminum strip can be divided into different grades, specifications and temper. The grades are: 1060,1050,1050A, 1060A,1070,1070A, 1350, the temper is O. O means of soft state, followed by the number that can show hard and soft, and the degree of annealing. The thickness is between 0.08-3.00 mm, known as: dry-type transformer aluminum strip.
  
  Dry-type transformer aluminum strip use high-quality pure aluminum as raw material, with high conductivity, soft and other characteristics, the surface is smooth, no burr, is the ideal material for the production of dry-type transformers, the conductivity, burr curling, bending, surface quality and a number of technical indicators demanding is really very high. With the transformer aluminum strip can make the dry-type transformer have the advantages of small volume, light weight, good insulation performance, flame retardant, no pollution, small partial discharge, moisture resistance, smooth operation and reliable, low noise and low maintenance cost. The transformeraluminum strip is widely used in high-rise building, underground Facilities, business centers, residential areas, hotels and other coastal wet areas.
  Reprinted from: Manufacture of Aluminium Alloy

• RE: What is the aluminum strip in a transformer?

  haomeialu > 12-13-2017, 01:19 AM

  In many conventional transformers, the aluminum strip between the primary winding (the closest to the core) and the secondary winding(s) serves as an electrostatic shield. This shield must be connected to a good earth ground (not just a common ground) to discharge any static charge brought into the transformer by the wires connected to the primary. This is especially important in industrial and other environments to assure system reliability.
  
  Some transformers use a copper strip around the secondary winding to reduce any undesirable high frequency electromagnetic interference (EMI) that might have transferred from the primary winding. This strip must also be connected to an earth ground.
  
  Finally, many transformers have steel covers (like lids) on each side of the core
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