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Pacific Crest Transformers, Inc. (PCT) is a leader in the design and construction of liquid-filled distribution and specialty transformers. PCT is a forward-thinking, innovative company that leverages 90 years of experience to meet the demands of a continually changing marketplace with custom-built solutions.

The PCT Blog is part of our ongoing efforts to create awareness about the energy situation in the US, and the need for more efficient and ecologically aware ways of meeting future energy demands. We have been deeply committed to building ‘green’ energy-efficient power infrastructure from the early 1980s. The PCT Blog should help us share our knowledge – and learn from the community as well.
 

The Role of Harmonics and Non-Sinusoidal Loads in a Wind Farm

Wind turbine transformers should be designed for the additional heating caused by harmonic loading and have an electrostatic shield between windings, neither of which are provided by conventional “off the shelf” transformer designs.   Read on for more information on the role ...


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19 Comments

Posted On: Thursday 24 February 2011, 12:10 AM

 

Switching Surges and Transient Over-Voltages in Wind Farms

The long cable runs and frequent switching operations found in multi-tower wind farms puts the wind turbine step-up transformer at greater risk than a conventional distribution or power transformer installations. Carefully locating the wind farm, along with using transformers with fault ride ...


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Tagged: green technology, wind energy, transformer, pacific crest transformer | 22 Comments

Posted On: Wednesday 23 February 2011, 11:47 PM

 

Transformer Applications in a Modern Wind Farm

Today's modern utility wind farm consists of a collection of wind turbines distributed in an array that provides the greatest exposure to the local wind flows. Often the array is composed of a series of radial lines of turbines connected in parallel to feed a common “collector” bus. ...


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Tagged: green technology, wind energy, transformer, pacific crest transformer | 17 Comments

Posted On: Wednesday 23 February 2011, 11:42 PM

 

Industrial Control Transformers

Industrial Control Transformers are intended for industrial applications where higher single-phase voltages need to be converted down to usable AC line voltages. Even before selecting an Industrial Control Transformer, various specifications must be kept in mind like load, minimum voltage ...


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Tagged: Industrial control transformers, industrial transformers, industrial transformer selection | 23 Comments

Posted On: Monday 31 January 2011, 09:57 AM

 

Acceptance Testing and Maintenance of Power Transformer

An energy transformer is a rather critical piece of equipment and this makes its installation a monstrous task that needs to be well backed by a good testing and inspection program.   Power transformer testing and inspection should ideally start with the installation of the ...


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Tagged: power transformer, power transformer maintenance, power transformer testing | 8 Comments

Posted On: Wednesday 22 December 2010, 11:15 AM

 
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