Will a turned ON thyristor (SCR) work normally if, for eg., (-20 V) and (-40 V) voltages are applied at its anode and cathode terminals, respectively?

Or, conversely, if, 40 V and 20 V voltages are applied at the anode and cathode terminals respectively?

08 September 2014 5,964 6 View

What will happen if the cathode and gate terminals of a SCR (forward biased) are shorted or connected together?

And what will happen when the same thing is done for a reverse biased SCR?

31 December 2013 7,300 2 View

What will be the result (or output) if a D.C. supply is superimposed or connected to a 3 Phase A.C supply?

Also what will be the output or resultant waveform?

10 November 2013 9,700 8 View

Can oil be used to fill the air gap in between the rotor and stator of any asynchronous machine?

Mineral oil (of very high dielectric strength & low viscosity) filled in between the air-gap may reduce the reluctance of the air-gap as well as the air-gap power losses.

09 October 2013 6,106 7 View

Measurement of Energy - can anyone help?

The energy-meter (present in households) measures only the active component of power used, but what happens to the reactive component of the power?

09 October 2013 9,381 5 View

Can a DC Generator also act as a DC amplifier, besides generating DC voltage?

Seeking advise on the topic

08 September 2013 2,942 24 View

Hunting phenomena in alternators?

During hunting phenomena in alternators, does the speed only oscillate about its normal value or does the rotor actually oscillate about a fixed point? Is the slip in the alternator also affected...

08 September 2013 490 4 View

What is a 'cycloconverter'?

What is a 'cycloconverter'?

08 September 2013 7,155 5 View

Can the blocked rotor test be performed on a Synchronous Motor?

.

08 September 2013 8,459 5 View

Why is a humming sound audible in transformers?

I connected a single phase step-down transformer in step down configuration and found that a certain amount of humming was audible. But when I connected that same transformer in step-up...

07 August 2013 1,008 9 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

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

Why should we choose deep learning to machine learning? Why is CNN better for image classification? Can I get Typical Answer?

What Characteristics makes CNN work better?

03 March 2021 1,458 4 View

What are some of the research gaps in machine learning and artificial intelligence in africa?

i would to know some of the research gaps in the artificial intelligence field in most african countries.

03 March 2021 6,145 3 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

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View