# Technical Articles

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# Circuit configurations (single line diagrams) for HV and MV switchgear installations

The starting point for planning a switchgear installation is its single line diagram. This indicates the extent of the installation, such as the number of busbars and branches, and also… Read more

Jan 22, 2018 | High Voltage

# Neutral Point Treatment in Three-Phase Networks (Detailed Overview and Comparison)

The main faults in power networks are the single-phase short-circuit and the short-circuit to ground. The short-circuit to ground is a conductive connection between a point in the network belonging…...

Jan 18, 2018 | Premium Content ♛

# Calculation of shaded-pole motor losses and efficiency at full load in 6 steps

First, let’s say few words about shaded-pole motors, and then dive into calculation procedure. A shaded pole motor is the simplest form of a single phase motor and is very… Read more

Jan 17, 2018 | Electric Motor

# What are Triplen Harmonics and where do they happen?

In order to understand network problems with triplen harmonics, first let’s have a short explanation of harmonic phase sequence and third harmonics. Power engineers have traditionally used symmetrical components to… Read more

Jan 15, 2018 | Energy and Power

# Recommended Protection For Transformers

The protection that is recommended and commonly applied for transformers is summarized in the following figures. It should be noted and recognized that these are general recommendations, not strict. More… Read more

Jan 12, 2018 | Protection

# What is what in outdoor HV substation? How to identify elements by shape and function?

It’s not always an easy task to explain what is what in high voltage substations. Shapes of the major elements are mostly similar through substations, but there are also combinations… Read more

Jan 10, 2018 | Power Substation

# HV Transmission Line Components (Towers, Conductors, Substations, ROWs and Roads)

The towers and conductors of a transmission line are familiar elements in our landscape. However, on closer inspection, each transmission line has common components with unique characteristics, beginnings and ends…. Read more

Jan 08, 2018 | Power Substation

# 8 Examples Of Transformer Differential Protection Using SIPROTEC Numerical Relays

The following examples show the application of SIPROTEC numerical relays for transformer protection. The individual functions are designated, using ANSI codes (Standard C37.2 – Electrical Power System Device Function Numbers)…....

Jan 05, 2018 | Premium Content ♛

# Solve These Ten DC Circuits and Train Your Brain!

I guess you’re still recovering from an awesome lunches and dinners you’ve had during holidays. Well, now when it’s over – it’s a good moment to plug yourself back and… Read more

Jan 04, 2018 | Electrical Lectures

# Protection Of Industrial Power Supply Systems (Fuses, MCCBs and Overcurrent Relays Settings)

As industrial operations processes and plants have become more complex and extensive, the requirement for improved reliability of electrical power supplies has also increased. The potential costs of outage time… Read more

Jan 02, 2018 | Electric Motor

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