If fiber optic is used in HV substation for communication, do we still need line trap?

What is the function of line traps other than communication?

08 September 2018 9,854 2 View

Is it correct to use Thevenin's theorem to calculate current in a particular branch in a power system?

Let say I want to know the current flowing through a new line connecting bus A and bus B. I generate a Thevenin equivalent circuit of the system seen from bus A - B. Is this legitimate?

11 December 2017 1,702 3 View

What is flux linkage?

05 June 2017 9,412 0 View

How to automatically iterate generator location in power system analysis software?

Let's say I want to optimize a new generator location in an existing power system. I need to know how's the system efficiency, reliability, etc with the new generator. Can I use ETAP or...

09 October 2016 3,744 6 View

What is the definition of repair rate in Markov state space analysis?

There is a confusion in defining repair rate. From Richard Brown's book, Power Distribution Reliability, it is said that repair rate is the inverse of repair duration, which is defined as the mean...

08 September 2016 9,971 4 View

What are the requirements to make a distribution grid able to operate in intentional islanding mode?

Let's say we have an ordinary radial distribution system. Now we want this network to be able to run intentional islanding with diesel generators connected to the end of the network. What are the...

07 August 2016 5,805 5 View

What is the best protection scheme for radial or weekly meshed distribution system?

If we don't take cost into account, is using sectionalizers is always better than using two CB? What if we consider the cost?

03 April 2016 8,391 3 View

What is acceleration factor in load flow study?

How does it affects the accuracy and convergence of a load flow study? Why is it typically 1.6? Does it have something to do with the golden ratio?

03 April 2016 5,571 9 View

How does line charging VAR affects the result of load flow study?

Is it significant in distribution system?

03 April 2016 4,046 3 View

How to randomize DG location in Simulink?

I have a power distribution system model in Simulink. I want to optimize DG location. How to randomize its position?

02 March 2016 8,806 4 View

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View

Is there a classification scheme for rock cavities or caverns with respect to their size and shape?

The range of forms and sizes of cavities in rock is very big. Is there a classification scheme for rock cavities regarding their size and shape?

02 March 2021 4,511 3 View

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

Can you share me how teacher education is managed in your respective national educational system?

I feel that the practice in teacher education in my country is below the expected performance level due to very poor management system. Hope I will learn something from your experiences.

02 March 2021 1,516 4 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

I need dataset for recommandation system?

Hi every body I need to collect datasets from different source to work on recommendation system algorithms, could you advise me how collect data?

27 February 2021 7,063 7 View

How does an AC-DC power supply Flyback Converter Based USB Charger Model using Matlab/Simulink looks like?

I am required to learn about Flyback converters and I got stuck not knowing to full design of the power supply flyback converter Based USB Charger Model using Simulink, especially the design model...

25 February 2021 5,435 2 View