How To Calculate and Draw a Single Line Diagram For The Power System

This technical article explains how to calculate and draw a single line diagram of the three-phase, 60-Hz system power system with generators, motors, transformers and lines. The following components comprise… Read more

Nov 01, 2017 | Energy and Power

Commissioning Numerical Protection and Procedure For Carrying Out Performance Tests

Numerical protection is based on a number of microprocessors that can be programmed to reproduce virtually any type of protection and relay. It represents important advantages in reliability, space and… Read more

Oct 30, 2017 | Protection

3 Applications Of Capacitor Banks Used To Correct The Load Power Factor

Capacitors are used in industrial premises for two basic functions: the first, to correct the load power factor, usually to meet the supplying authority’s supply requirements and avoid tariff penalties…...

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Oct 27, 2017 | Premium Content ♛

How bad harmonics influence the work of motors and generators, transformers, capacitors etc.

The distortion in the waveform in the load current of any nonlinear device causes similar changes in the voltage waveform relative to the harmonic impedance of the source network. This… Read more

Oct 25, 2017 | Electric Motor

Troubleshooting three basic hardwired control circuits used in starting electric motor

Generally speaking, basic control circuits are used in starting, stopping, sequencing, and safety automatic interlocking of equipment and machines. The control circuit consists of relays, relay contacts, contactors, timers, counters,… Read more

Oct 23, 2017 | Electric Motor

Precautions for start and stop control of AC drives and problems that might arise

The protection of the mains supply side of the converter requires a short-circuit protection. This can be, either in the form of a set of adequately rated fuses, usually as… Read more

Oct 18, 2017 | Industrial Automation

Differential protection of transformers, machines, busbars, lines and feeders

Differential protection is very useful method of protection that can be applied to the protection of any network component, such as transformers, machines, busbars, lines and feeders. The differential relay… Read more

Oct 16, 2017 | Protection

Improvement of Power Quality via Dynamic Reactive Power Compensation Systems

In many cases, industrial plants are characterized in particular by the use of highly dynamic drive technology. In addition to the undeniable advantages of these modern technologies, there is the… Read more

Oct 11, 2017 | Energy and Power

The Structure of Electric Power Systems (Generation, Distribution and Transmission Of Energy)

From a general perspective, an electric power system is usually understood as a very large network that links power plants (large or small) to loads, by means of an electric… Read more

Oct 09, 2017 | Energy and Power

7 design diagrams that HV substation engineer MUST understand

A substation engineer should have a good understanding of the electrical equipment and layout of HV power substation. It’s also important to understand relationship between protection and the other equipment… Read more

Oct 04, 2017 | High Voltage