Archive for the ‘Electrical software’ Category

Reverse current protection

July 28th, 2017 | 1 Comment | Posted in Electrical software
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Reverse current is another security risk. In normal conditions, distribution from power source is passed by busbar system to the devices with interconnection with voltage regulators and control units. In case of malfunction there is possibility for reverse current to occur.

Let’s find out more about it thanks to this article that our member Mile kindly sent us.

When we have reverse current situation, something is wrong with DC generator. So, generator fails and cannot provide electrical power and starts consuming current instead of providing it. Obviously, when this situation happens, generator is becoming a load to electrical distribution.

Basically, there are two methods for protection, reverse current cut-out relay and reverse current circuit breaker.

LV motor protective device settings (video tutorial)

February 16th, 2017 | 1 Comment | Posted in Electrical software
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Your fellow electrical engineer Jesús Pérez Díaz is back with a great new article featuring a video tutorial (ETAP software). Enjoy!


250 hp WEG motor / HMCP Cuttler Hammer / Overload Relay Schneider Electric

Hello everyone! In this article I want to show you how to determine the protective device settings of a typical and simple protection scheme usually applied to low voltage motors, considering the electrical protection basis and using ETAP (Electrical Transient and Analysis Program)to build the time-current curve.

Softwares for Power System Analysis

March 13th, 2013 | 5 Comments | Posted in Electrical software
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The Need

As technological advancements have been made, we are now able to design our experiments in a better manner. One such advancement is the usage of simulation in the case we can’t conduct the practical experiment. Furthermore, it serves as a good feasibility assessment tool. The cost of prototyping and development of certain complex systems is costly. The role of simulation is to mimic the experiment in a virtual model. All major functions and actions are defined through algorithms and mathematical values. In this manner, it is possible to predict the outcomes of a complex experiment via a computer based simulation model. So as the systems increase in size & complexity the need for computer simulations becomes necessity to work efficiently & effectively.

The purpose of writing this post is to introduce Professional Engineers/students with different software that are available for Power System Analysis (PSA). All of the software’s listed below have some unique features that make them different from the other.

Now let’s take a look at some simulation softwares and their usage.


Softwares for Power System Analysis 1

Used primarily for power system simulation, the main attributes of this software are:

  • Real time data management
  • Model design for electrical power systems
  • Customizable features

It has a great diversity of users from power consultants to high level designers. The most common software that ETAP offers is ETAP Power Management Software which is developed keeping the needs of the Engineers under consideration. This software aids in better, smart & flexible designs.


Best electrical calculation software review

October 21st, 2010 | 28 Comments | Posted in Electrical software
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Following discussions on the forum, you will find in this article the comparison I started to create between 4 electrical calculation software, used for the design and calculation of electrical installation, based on my own experience. I would be glad to get complementary information and opinions from other users of such electrical software.


Energy efficiency building software comparison

November 2nd, 2009 | 3 Comments | Posted in Electrical software, Energy Efficiency - building
building software

building software

About Websites referencing energy Efficiency software, I have identified 3 websites that reference energy efficiency software for Buildings. These tools are software applications, excel sheets and others…most of them are free or shareware.

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