Kunal Sen

12 Questions 33 Answers 0 Followers

Questions related from Kunal Sen

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?

09 September 2014 6,037 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?

01 January 2014 7,381 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?

11 November 2013 9,765 8 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?

10 October 2013 9,458 5 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.

10 October 2013 6,183 7 View

Can anybody explain the Zero Power Factor (Potier Reactance) method for finding the voltage regulation of an Alternator?

How is the method most accurate in finding the regulation, given the fact that the Potier triangle is plotted MANUALLY on the graph?

09 September 2013 9,930 1 View

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

Seeking advise on the topic

09 September 2013 3,016 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...

09 September 2013 563 4 View

What is a 'cycloconverter'?

09 September 2013 7,228 5 View

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

09 September 2013 8,577 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...

08 August 2013 1,088 9 View

How can the performance of a flywheel (in electric generators) be improved?

Such that it accepts as well as transfers maximum energy.

08 August 2013 1,020 4 View