Breaking of a short circuit current in a direct current system

Direct current presents different problems than alternating current with aregard to the phenomena associated to the breaking of a short circuit current and interruption of other types of high value… Read more

Aug 29, 2016 | Edvard

What details a motor nameplate shows and how to use them

We have all seen the motor nameplate attached on the motor side (or on top). All motors have a permanent nameplate which lists all important data, further data is usually available… Read more

Aug 26, 2016 | Edvard

Calculate reactive power of the capacitor bank and improve power factor

For the dimensioning of the capacitor bank to be installed in order to improve the power factor of a plant, it is necessary to calculate correctly the power factor according… Read more

Aug 24, 2016 | Edvard

Motor wiring guidelines (Cable shielding, grounding and splicing techniques)

This technical article describes shielding, grounding, and splicing techniques for use with motor wiring. This article covers the following topics: Understanding noise in motor power wiring Shielding motor power cables… Read more

Aug 19, 2016 | Edvard

Basic measuring of resistance, voltage and current using digital multimeter

Digital multimeter has generally replaced the analog-type multimeter as the test device of choice for maintainers because they are easier to read, are often more compact and have greater accuracy…. Read more

Aug 15, 2016 | Edvard

First, identify ground faults and status of the neutral and then protection…

To identify ground faults in a network and therefore carry out effective protection, it is necessary to know in detail how the neutral is run. Identification of ground faults is made… Read more

Aug 05, 2016 | Edvard

5 transformer constructions you’re most likely to see inside buildings

There are several different types of transformer constructions you can see installed in substations inside commercial and other buildings. This article is generally applicable only to transformers of the liquid filled, ventilated… Read more

Aug 01, 2016 | Edvard

Which type of residual current device (RCD) you should use for protection?

It is not quite clear when and by whom the first residual current device (RCD) was developed, but it certainly appeared on the market in the 1950s and was initially… Read more

Jul 28, 2016 | Edvard

How standby generators work and how to dimension them?

Standby generators are used in order to provide consumers in the system entitled to standby service in the event of breakdown or shutdown of the normal power supply. They consist… Read more

Jul 26, 2016 | Edvard

Challenge your electrician skills with these 15 questions

Whether you are professional or a novice in a field of electrical engineering, it’s always a good idea to challenge your electrician skills from time to time. This is your… Read more

Jul 25, 2016 | Edvard