Any advice on building from a single-phase to three-phase circuit?

Please propose a simple and efficient circuit for building three-phase system from single-phase one.

10 November 2013 8,515 6 View

How you can prove that a magnetic field exists inside a high-voltage conductor?

.

10 November 2013 3,518 14 View

Why is the air gap in a synchronous machine larger than in an induction machine?

Why is the air gap in a synchronous machine larger than in an induction machine?

04 May 2013 2,136 14 View

What are the main characteristics of stoarge devices (batteries) of PV systems?

Or major different of these batteries with other types?

03 April 2013 2,846 7 View

Which indexing service does present better evaluation? ISI or Scopus?

Or other indexing service?

03 April 2013 5,015 55 View

Is a "PI" controller sufficient for many parts of power system studies?

Some researchers believe that a "PI" controller can properly satisfy their requirements in many sections of power system studies and there is no need to the complex controllers. Do you agree?

03 April 2013 5,147 13 View

Is it true? "In an ideal condition, the inverters must work at unity power factor in DG applications"

Is it for 'reactive power'? Please provide detailed response.

03 April 2013 3,764 7 View

What are main steps for starting a research project?

Many students asked us about how they can start a research project and publish a paper; even some of them are undergraduate students. In your idea and based on your experience, what is the best...

02 March 2013 3,773 18 View

Traditional or modern teaching?

In your idea, what is the best and more effective teaching method for undergraduate students (specially electrical engineering students)? Please provide your experiences or proposals here.

02 March 2013 9,158 5 View

What is the best method for elimination of remanent (residual) flux in a iron core?

Please propose a detailed practical approach.

02 March 2013 4,744 3 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View