Learn to read and understand single line diagrams and wiring diagrams

Single line diagrams are used in common engineering practice as graphical representation of electrical switchboard or assembly containing more sections, i.e. cubicles. Basically, they are simplified and digest picture of…...

PREMIUM Membership Required

This content is available for Premium members only. Premium membership gives you an access to specialized technical articles and other extra premium content (electrical guides and software). Premium Membership ♛

Apr 12, 2019 | Miodrag Kokotovic

Properly engineered and installed selective coordination between LV circuit breakers

It’s extremely important to work on selective coordination of circuit breakers in the design phase of a system. After switchboards, distribution panels, MCCs, lighting switchboards, etc. are installed, there typically… Read more

Apr 10, 2019 | Edvard

The essence of LV circuit breakers – Releases, tripping curves, characteristics and limitation

A circuit breaker is both a circuit-breaking device that can make, withstand and break currents whose intensity is at most equal to its rated current (In), and a protection device… Read more

Dec 17, 2018 | Edvard

Neutral earthing systems of generator sets (gensets)

Generator sets have specific features that must be taken into account for protection against electric shocks. Mobile sets cannot be connected to earth and their connection by means of a… Read more

Nov 08, 2018 | Edvard

4 essential ground-fault protective schemes you should know about

While ground-fault protective schemes may be elaborately developed, depending on the ingenuity of the relaying engineer, nearly all schemes in common practice are based on one or more of the… Read more

Oct 29, 2018 | Edvard

4 important factors related to proper application of a LV circuit breaker

Consideration of all the factors related to proper application of a low-voltage circuit breaker goes beyond voltage, current, and interrupting rating. The performance of a specific type of circuit breaker… Read more

Oct 15, 2018 | Edvard

The study of harmonics and LV energy compensation

The harmonic currents are mainly down to the nonlinear loads in the installations. The most frequent harmonic sources are linked to the use of electric arcs (welding, arc furnaces, discharge… Read more

Aug 20, 2018 | Edvard

An algorithmic approach to space optimized design of modular switchboards

Modular Switchboards are used for electrical power distribution in industrial and commercial locations. It is often important to know the dimensions of the Switchboards beforehand, especially in case of large… Read more

Aug 01, 2018 | Apurva Singh

Installing and setting into operation of automatically controlled compensation banks

During previous decades manufacturers of automatic compensation banks faced increasing competition worldwide. They were forced to produce as economically as possible. Now, new technologies have been developed compared with the… Read more

Jul 23, 2018 | Edvard

How to create a specific neutral earthing system within existing one (islanding)

Each neutral earthing system has advantages and disadvantages for the safety of property, electromagnetic compatibility or continuity of service. The main system must therefore be chosen according to these criteria,… Read more

Jul 18, 2018 | Edvard