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Electrical Engineering

Power Transformer Condition Monitoring and Diagnosis

2018-10-20
In Electrical Engineering
Tagged Books, Electrical Engineering, power transformers

Co-authored (2 out of 8 chapters) by the Engineers Tools founder the “Power Transformer Condition Monitoring and Diagnosis” book provides a useful account of modern condition monitoring techniques for Power Transformers. Quoting from the Institution of Engineering and Technology who publishes this book: Topics covered include concepts and challenges in power transformer condition monitoring and diagnosis; dissolved gas analysis, measurements and interpretations; moisture analysis for power transformers; assessing degree of polymerisation value considering thermal ageing and paper moisture; frequency response analysis; monitoring of power transformers by mechanical oscillations; lifecycle management of power transformers in a new energy era; and other topics in power transformer asset managementRead More →

Harmonics Visualiser

2018-10-02
In Electrical Engineering
Tagged Education, Electrical Engineering, Harmonics, Mathematics

The Harmonics Visualiser tool is an Excel workbook that presents the vectorial and sinusoidal representation of a system of harmonic components. The magnitude of the vectors can be entered on the left-side of the graphs and the angles are calculated automatically depending on the order of the harmonic component. The vectors are presented as a three phase system whilst the sinusoidal graph is referenced to Phase A or Red Phase. The sinusoidal chart also shows a summation of all the harmonic components into the final resulting wave form. The tool includes an animation function in which the vectors are rotated through a 360 degree cycleRead More →

Power Quality Teaching Tool

2018-09-21
In Electrical Engineering
Tagged Education, Electrical Engineering, Explanations, Learning, Power Quality

Learn about power flow, sags, dips, phase rotation, harmonics, flicker and more.Download PSL’s FREE Power Quality Teaching Tool to learn about single-phase distortion, power triangles, vector-based phase shift during voltage sags, waveforms with phase-sequence vectors, and more. This little tool is great for explaining and visualising the various types of power quality issues frequently encountered in an electrical network. Find out more on PSL’s Power Quality Teaching Tool webpage.Read More →

Symmetrical Components

2018-09-19
In Electrical Engineering
Tagged Calculations, Electrical Engineering, Symmetrical Components

The Symmetrical Components tool is an Excel Workbook that shows the breakdown of an arbitrary three-phase set of vectors into its Symmetrical Components. This tool is implemented in Excel in order to facilitate its use by students and professional engineers alike. The spreadsheet takes the Magnitude and Angle of each of the vectors as an input as shown in the image below. Using this information, the Cartesian coordinates of the origin and end of each vector are calculated to be used in the chart. After this, the symmetrical components are calculated for Positive, Negative and Zero sequence. All of these are then also reported inRead More →

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