Salah Eldeen Gasim Mohamed

25 Questions 62 Answers 0 Followers

Questions related from Salah Eldeen Gasim Mohamed

Fluidsim pneumatic models of basic introductory applications?

Wishing to work with Fluidsim software to simulate pneumatic basic circuits.

08 August 2023 7,316 1 View

Which software is suitable to model soft starters of induction motors, that enables variation of the triggering angle to study dynmaics of starting?

It is desired to study dynamic performance of three phase induction motors when started using a soft starter. Which software is more suitable to model soft starters of induction motors, that...

06 July 2023 7,001 1 View

Why results of a Simulink model containing pulse generators deployed to arduino hardware are not correct when two or more pulse generators are used?

When deploying a matlab simulink model, that consist of a single pulse generator, on arduino hardware, everything goes ok. But when two pulse generators are put in the model and deploy it, arduino...

17 November 2022 1,147 0 View

Has the experiment of electricity deregulation achieved its desired benefits?

Some researchers reported that electricity prices in the deregulated states are higher and escalating faster than in the still regulated states .. !!

05 April 2015 8,627 6 View

How were the power systems managed in terms of generation's economic dispatch and optimal power flow pre-deregulation and how are they managed now?

May you please shed a light on that whether in general or considering a country example ..

08 March 2015 3,975 11 View

Why do utilities perform state estimation rather than using the results of load flow analysis?

State estimation and Load Flow.

05 March 2015 9,017 2 View

Can anyone provide information on low and high order harmonics filter design?

Odd and even low and high harmonics orders filter.

03 January 2015 5,629 4 View

What are the effects of a transformer's core saturation?

What operational characteristics it will show?

23 December 2014 4,177 6 View

How does a Phasor Measurement Unit (PMU) work?

What does a Phasor Measurement Unit (PMU) system consist of? And how does it work? How do a group of PMU interact with each other? How do a few number of PMUs collect data of all power system points?

05 November 2014 9,978 13 View

Does Neural Networks based voltage stability assessment has any drawbacks?

In terms of accuracy, and training requirement for different operating conditions.

25 October 2014 5,341 4 View

What is the difference between load flow analysis and state estimation in power system analysis?

May you please state the difference.

25 October 2014 1,646 36 View

How can reduction of field current increase motor speed, and zero field current cause infinite speed?

In a shunt DC motor, how can that be practically justified? Field current reduction increases motor speed. That is, zero field current causes infinite speed. How can that be practically justified,...

22 October 2014 2,658 2 View

How can one find the angle between voltage and current sinusoidal waves in MATLAB/SIMULINK environment?

Is there a MATLAB/SIMULINK block, or how can one build one?

17 October 2014 5,190 7 View

Can anyone provide the power handling capacity or maximum loading of IEEE-57, IEEE-118 bus transformers and lines?

Transmission lines and transformers maximum rating.

11 October 2014 1,051 0 View

Does a PV system create unbalance in the AC system when connected to it? Provided that the 3 phase inverter and transformer are balanced?

Of Course the inverter causes harmonics (waveform distortion), but even the distortion is balanced, am I right. Is there any unbalance cause ?

01 October 2014 5,373 13 View

Do capacitors produce harmonics when connected at the load side? and if yes, why?

I connected a resistive load, the current wave on a power analyzer was pure sinusoidal and in-phase to the voltage. When connected an inductive load instead, the current wave was still pure...

19 September 2014 4,115 11 View

How to design a distribution system for a factory where there are 11 kV loads, and 415 V loads?

Transformers selection, cables selections, protection units selection. The load includes induction motors and air-conditioners, pumps, and lighting.

14 September 2014 3,433 8 View

Who can help in application of neural networks (NN) in load flow analysis?

Supply me by any documents, examples, and MATLAB codes.

12 September 2014 4,158 8 View

Which is more effective, allocation of a STATCOM at sub transmission line mid distance, or end, or at main distribution line mid distance or end?

Say in a complex power system having (220 kV) sub transmission voltage and (33 kV) main distribution voltage.

12 September 2014 985 4 View

Since the heaviest domestic loads are air conditioners, what is new to reduce their energy consumption?

They cause distribution system congestion, and significantly increase the electricity bill.

01 July 2014 5,501 16 View

In MATLAB/SIMULINK, is there a rule to follow when selecting the solver which will provide the most accurate results?

For example when one wants to simulate an electrical circuit using SimPowerSystems.

04 June 2014 7,929 3 View

Making diverse in consumers demand helps reducing the maximum demand and alleviating overloads, but to what extent is demand diversifying possible?

Since usually there is one extreme load peak, bearing in mind that a definite quantity of energy (MWh) is going to the consumers what ever the load curve shape is. To what extent is it possible to...

24 May 2014 4,745 3 View

How can I simulate SVC, STATCOM, TCSC, SSSC, and UPFC connected in a network (as simple as possible) using MATLAB/SIMULINK?

Network flows and voltage control simulation using MATLAB/SIMULINK.

09 May 2014 3,673 4 View

Which one is broader: Power system security, or stability?

Does security include stability?

04 May 2014 5,859 4 View

What is the difference between power system stability and power system security?

For example, what is the difference between voltage stability and voltage security?

29 April 2014 6,029 5 View