16 power correction devices available to install and really improve the power quality

All modern electronic devices are vulnerable to the poor power quality. But why? What can you do about it? This technical article describes 12 types of power correction devices (16… Read more

Jun 18, 2018 | Energy Efficiency

4 ways to bolster the short-circuit withstand capability of HV transformers (in use)

There are many methods applied to bolster the short circuit withstand capability of the transformers: improvement of the materials, reforming of the design and good maintenance in the operation process… Read more

Jun 13, 2018 | Protection

MV/LV Power Substations Design and Schematics Notes (Network Supply and Enclosure Types)

Early consultation with the local Electricity Distributor is essential for agreement on a mutually approved MV/LV substation to act as the intake point for a particular site. This consultation is… Read more

Jun 11, 2018 | Low Voltage

Critical role of time synchronisation in IEC 61850 based digital protection systems

The needs and exact precision of time synchronization in IEC 61850 based digital protection systems have evolved. With new technologies and better distribution methods, most modern intelligent electronic devices (IEDs)…...

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Jun 08, 2018 | Premium Content ♛

Why Raise the Power Factor? The Basics Every Electrical Engineer Should Understand.

A low power factor causes poor system efficiency. The total apparent power must be supplied by the electric utility. With a low power factor, or a high-kilovar component, additional generating… Read more

Jun 06, 2018 | Electric Motor

Communications in power system protection (medias, protocols and network topologies)

A communication system consists of a transmitter, a receiver and communication channels. Type of medias and network topologies in communications provide different opportunities to advance the speed, security, dependability, and… Read more

Jun 04, 2018 | Protection

Design of primary and secondary power distribution in car manufacturing plants (BMW, VW…)

When power supply systems for car manufacturing plant are planned, each individual problem can be faced in various ways: by means of technical solutions that feature specific technical advantages. This… Read more

May 30, 2018 | Low Voltage

Current heat losses produced by electrical operational equipment in LV switchgear

It is widely accepted by all manufacturers that accumulation of heat (leading to overheating of devices) in switchgear is one of the greatest risks that could shorten the life expectancy… Read more

May 28, 2018 | Energy and Power

How optical communication cables work and how they differ from other cables

In several previous articles I mentioned optical fibre in the context of substation automation, protection signaling, communication between electrical devices, LAN communications, etc. Now I will get into details of… Read more

May 23, 2018 | Cables

What’s really important to achieve in transmission line protection relaying?

As you already know, the real purpose of transmission line protection is to detect faults or abnormal operating conditions and to initiate corrective action. Protective relays must be able to… Read more

May 21, 2018 | Protection

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