Introduction to Control Systems

March 5th, 2014 | Make a comment | Posted in Panel Building
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Our tutorials maker Nasir is back with a new theme: Control Systems. 10 parts are planned, so enjoy the first one!

Control system is a way of arranging and combining components in such a way that the desired output is obtained. In other words, a system is said to be “controlled”, if it’s working in a stable mode without getting unstable in any span of time.

From the above definition, one can say that a controlled system must have two attributes, which are:

  1. Stability
  2. Desired output

Introduction to Control Systems

A control system can be functioned electrically, mechanically, pressure by fluid (gas or liquid), or it can be combination of these ways. But it more preferred to operate this system by electrical means especially when computer is involved, even though interfusion are common these days.

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How Cloud Computıng impacts Electrıcal Systems

March 3rd, 2014 | Make a comment | Posted in Power quality
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Our active member Steven Mill wants you to know how he feels about Cloud Computıng as an engineer. Will you agree with him?

Cloud computing is in fact a kind of internet service that you don’t need to download or store any information in your local drive. Simply it is not something different than a web page.

Everywhere anytime you may access to the system that is available at cloud. This way it gives mobility, accessibility and easiness.

Mobility

First feature that we need to take into consideration if we are talking about cloud computing is mobility. Even you are at home watching television if you have ability to connect to internet you will also have chance to control the factory.

How Cloud Computing impacts Electrical Systems 1

In industry I have seen firms using these technologies. Engineers has some kind of password so that they can access the online server and see the things going on at the factory and even more they can modify the plc codes and other internet connected machines’ codes.

Another example is a new firm working on cloud computing technologies. The idea is very unique. You apply to them and tell which electrical machine to control online and they make the electrical machine in your facility connected to internet available at your fingertips at anytime you want. They use Arduino cards for this system. You pay for per service or per access to machine.

This is very important. With these technologies whole industry is at your fingertips. You may check whole factory or facility with several clicks.

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Polyfuse Circuit Breakers

February 27th, 2014 | Make a comment | Posted in Electrical distribution
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Check the last part of Nasir’s tutorial on Circuit Breakers. The next tutorial from him will be on Control Systems!

For a prolonged protection of the circuit the perfect choice of the circuit protection device and its proper installation is very necessary. So here we are discussing another type of circuit breaker known as the Polyfuse Circuit Breakers.

It would be a bit justified, if they would be classified as a type of fuse, but since they do not need any replacement after each time an excessively large amount of current passes through them, so we broadly classify them under the category of circuit breakers, as it is the property of circuit breakers that they do not need any replacement.

However, the circuitry of poly fuse circuit breakers is a bit different from the construction trend followed in the construction of the normal circuit breakers. They also differ in their working principle from this trend.

What is a Poly Fuse Circuit Breaker?

So firstly, I am going to explain what basically a poly fuse circuit breaker is? They are neither fuses nor circuit breakers when it comes to their physical construction. In fact, they are thermistors with positive temperature coefficients.

Polyfuse Circuit Breakers 1

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Autorecloser

February 24th, 2014 | Make a comment | Posted in Electrical distribution
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In this article, Nasir tells you about Autorecloser. Do you know about it? If not, juste read. If yes, you still can send a mail to the team to send an article about the topic you want.

Sometimes, transient faults occur in circuits or electrical lines, due to which one or more live wire come in contact with each other, or the current carrying wires come in contact with the Earth, which you know can prove to be very dangerous. Such faults are usually caused in overhead electric cables, which sometimes fall loose or come in contact with each other due to strong winds, lightning or some other disaster like that.

These high voltage overhead lines suffer from line to line short circuits for brief time periods, and then afterwards return to their normal state when the storms and other such problems pass away.

Autorecloser

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Inspection and Testing of Wiring Installations

February 19th, 2014 | 2 Comments | Posted in Electrical Safety
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Hello everybody! As you may know, you can send us articles about whatever you want so that we can publish them on the blog. Manish, a member of the community took the opportunity and sent us the following article in which he tells us how to inspect and test your wiring installations. We thank him!

Just a reminder: you can send articles too by sending a mail to the team.

Introduction

Periodic inspection and testing of internal wiring installations is necessary. Internal wiring should be checked every year for safe operations.

While carrying out inspection and testing of internal wiring installations, following points should be checked:

Incoming Service Line Connection

Check and ensure the following:

  1. Service line coming in to the premises is properly terminated and brought in
  2. Check for fuse wire rating on each of the phases so as to ensure it is of correct rating
  3. Check for wire sizes to be of correct size to carry the required current
  4. Check for earthing to be properly maintained at the service line side

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