Measuring current with ammeters

February 24th, 2015 | 1 Comment | Posted in Others
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One of our member, Nasir, has thought of another tutorial series which is “Measuring Instruments for Electrical Engineers”.

In this series, he will focus on several instuments one by one and explain how it works and how to use it.

Pretty exciting isn’t it? Now check the 1st tutorial on ammeters

What is an Ammeter?

The first question that needs to be answered according to rules before formally telling about the various functions of the device is that what it is basically used for. So an ammeter is a current measuring device that is used for measuring the amount of current flowing through a circuit.

Since we all know that electric current is measured in Amperes, which is the unit of current, so an ammeter is named after it since it measures the amount of amperes in the circuit.

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Pilot and signalling devices

February 20th, 2015 | Make a comment | Posted in Others
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Here’s an article by Martin M. about pilot and signalling devices (features, benefits, and applications).

You too can send us articles, all you need is to send a mail to the team.

Introduction

A typical industry and power system setup consist of different electronic equipment and machinery. When energized, the equipment performs varying functions that range from driving loads to power generation.

Considering the dangers associated with malfunctioning electrical equipment and machinery, there is a need for forewarning, as well as quick control devices to ensure personnel safety and reduced damage. This comes in the form of pilot and signalling devices.

The primary function of and pilot devices is to complete or break a circuit, control an operation and act as a primary notification module. The signalling devices on the other hand are primary equipment status notification modules.

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New generator creates electricity directly from heat

February 16th, 2015 | Make a comment | Posted in Electrical distribution
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Hi, it’s Steven Mill, it’s been a long time but I wanted to submit an article about a particular generator…

New generator creates electricity directly from heat 1

Scientists from Germany and the U.S have recently developed a thermionic generator which is capable of converting heat and light into electrical energy. This new invention is said to overcome the so called ‘space-charge predicament’ that stood as a barrier with previous developments of such devices.

The newly developed generator is far more efficient (at least four times) compared to its contemporaries, and is equipped with state of the art technology, that can convert solar power and heat generated from combusting the waste materials, into electrical energy.

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Mobile Substations : features and applications

February 13th, 2015 | Make a comment | Posted in Electrical distribution
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The articles by our dear member Martin M. are pretty smart and the other members often agree with him. Let him tell you more about mobile substations, a topic he likes to write about.

Remember that you too can send us articles, we’d be glad to review then publish them. Just send a mail to the team.

The primary function, or purpose of a mobile substation is to provide temporary restoration to power supply through circumventing faulty or damaged low and medium voltage substation systems(up to 245kv) and equipment. Harsh weather conditions and natural disasters are usually the main cause of damage to substations.

The MS allows for the procurement of the required repair equipment, grid component, as well as reduced disruption to power supply.

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4 qualities every power protection system should possess

February 9th, 2015 | 2 Comments | Posted in Electrical distribution
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Check the great article we received in our boxmail. It’s about Electrical protection and it tells you which are the 4 fundamental qualities every power protection system should possess. Enjoy!

In power generating stations, all most all electrical circuits and equipment tend to generate faults. This is generally caused due to insulation fail between conductors and ground, or due to fail of insulation between the various conductors themselves.

4 qualities every power protection system should possess 1

Though the reasons for an insulation fail keep varying, the result is the same, “excess flow of current.” When excess current flows through weak resistances, the inrush current can severely damage the electrical equipment, resulting in extensive operational loses.

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