In what cases (circumstances)we should apply P controller, PD controller, PI controller & PID controller ?

2229

How can we calculate the motor frame sizes?

3454

What are the components connected in between the power supply coming from an electric pole to HT & LT Panels in a large commercial building or how the power supply connected from Electric pole to Transformer & then to the HT & LT panels of a building? Please send me answers via mail, my id is yogiagarwal@gmail.com. If possible, please give a line diagram.

2124

what happen if the load connected to the induction motor is taken away? the same question for synchoronous generator in synch i think that the the exitation voltage will appear on the terminal only if so plz answer me

2058

Where can I get CPWD electrical specifications & Shedule of rates? Please help me

2299

7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?

2318

what could be the RMS value and average value of a 4 phase sine wave?

1920

I am doing apprenticeship training at HT switch yard in NLC. How can i get electrical c license. ??? What r the rules for getting it as an apprentice? ??

1893

Why slip ring ind. motor power consumption is low compare to induction motor .same 90 kw motor used same load output

1895

Why we use 4-20 mA Analog signal for the PLC input? Why not 0-20 mA? Why not 5-25 mA?

2946

please send me RRB electrical engineer previous year questions for Sr. Section Engineer

2000

what is a pilot wiring and whys that called a pilot wiers

2004

why Induction Generators are not "Black start" ? and apart from WTGs where this types of generator are generally used?

2725

What is difference and reason b/w -48V BTS system and 24 V BTS system. Plzzzzzzzzz tel me.

2265

While converting delta into star or star into delta ,the three values of resistances remains unchanged .Find out the value?Let In star R1=x;r2=x;R3=x On converting into delta,R12=x;R23=x;R31=x Find the value of x

1981