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voltage optimisation captech capacitor

Power and Specialist Transformers

Specialist power transformers, for example, isolation transformers are used in particular applications where the primary purpose of the transformer is not to change voltage and current levels but is for some other purpose. This may include isolating the output from the incoming supply or to have particular characteristics such as high efficiency for photovoltaic applications or withstand of particular phenomena such as harmonics.

When would I need a specialist transformer?

  1. Sensitive devices which are susceptible to electrical noise
  2. Risk of electric shock
  3. Special applications or where the system is not at ground potential

How do isolation transformers work?

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

Isolation transformers, more specifically, are used to transfer electrical power to some equipment while isolating it from the source. Isolation transformers provide galvanic isolation and can be used to protect against electric shock, to suppress electrical noise in sensitive devices, or to transfer power between two circuits which must not be connected. They are often built with special insulation between primary and secondary, and are designed to withstand a high voltage between windings.

Isolation transformers have a number of characteristics which are useful in particular applications. They have the ability to block DC signals while not impacting on AC components. They can also block interference caused by earth loops. Isolation transformers are fitted with an electrostatic shield which provides noise attenuation, making it suitable for use for power supplies for sensitive equipment such as computers or medical devices.

Isolation Transformer 850px 72dpi

What we offer

Partnering with Ortea, Captech offer a range of specialist transformers to suit a number of applications including:

  • Isolation transformers
  • K transformers for non-linear loads
  • UPS transformers
  • Transformers for rectifiers
  • Transformers for photovoltaic applications
  • General purpose (customised) transformers

 

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