T3 BENEFITS

Environmentally Friendly

By replacing a conventional transformer with a toroidal transformer, energy savings of up to:

• 90% at no-load, and
• 35% under load conditions

may be obtained. This means less electricity is used, and improves the environment in which we live.

Low Mechanical Noise

The core of a toroidal transformer is manufactured with one single strip of high grade, electrical steel which is wound concinuously to form a donut-shaped core.  Conventional transformers are manufactured with individual pieces of steel (called laminations) that may become loose over time, thus causing mechanical noise.

Low Electrical Noise

The core in a toroidal transformer is manufactured using high quality grain-oriented silicon electrical steel and is rolled in one continuous strip. This makes the magnetization current extremely low, reducing the electrical hum or noise to virtually nil. AS 90% of the noise is produced by the core and as the toroidal transformer does not have an air gap, induced noise should be reduced 8 times more that it would in a conventional transformer.

Smaller and Lighter

The no–load losses in a toroidal transformer are extremely low compared with a conventional transformer. This is due to the high grade electrical steel used in the manufacturing process of the core. Less copper wire turns are required in a toroidal transformer, resulting in further material savings, and lower steel and copper losses.

Efficient Mounting Design

At Torema Australia, we have designed and developed a unique installation method for mounting toroidal transformers. The plastic molded base plates, complete with a center sleeve surrounded with epoxy, require one single bolt to secure the transformer to our customer's equipment. This ensures that no mechanical force is exerted on the windings which will cause stress on the windings, and allows an increased air flow to minimize temperature rises.

Easy Mounting

Mounting the T3 toroidal transformer is simple. One single mounting bolt down the center of the transformer bolts the transformer to its application.  There are some considerations that need to be taken into account when mounting a toroidal transformers.  These include:

• A shorted turn can be created if an electrical connection is made through the center of the transformer and around the outside of the transformer.  This commonly occurs in the following situations:
• Connecting the earth to the center bolt mounting the transformer 
• Having an incorrectly fitting case where the lid of a metal case makes contact to the center mounting bolt that is screwed to the bottom of the case
• The transformer is mounted vertically sandwiched between two mounting cheeks that are then bolted to a metal enclosure

• When using standard mounting hardware (metal plate and 2 neoprene washers), always ensure the neoprene washers are the correct size.  They should be larger than both the metal plate that is provided, and the outside dimension of the transformer. Torema Australia recommends using, wherever possible, our unique plastic moulded base plate with the centre sleeve surrounded with epoxy. This mounting method reduces the risk of damage to the transformer's windings.

Flexible Design

Torema Australia is the only toroidal transformer manufacturing company that has its own toroidal core manufacturing facility in Australia. Developed inhouse, our core manufacturing machinery provides us with the flexibility to design and manufacture the core size (diameter and height) that best meets our customer's needs. Samples and production runs can be manufactured and supplied to our customers in a short period of time because of Torema's manufactures the complete product in Australia.

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