For the same power rating,which motor is bigger in size,AC or DC?
Answer Posted / niks_4u86
i think it has to be AC as to reduce the reluctance for flux the air gap provided gets the size of AC motor greater than the size of dc motor insulation
| Is This Answer Correct ? | 9 Yes | 24 No |
Post New Answer View All Answers
please send me previose rrb junior engineer qustion papers
mostly the questions were from machines... d.c. machines, transformer, synchronous and induction all theory paper........ few from power system... but the level of paper was easy.....
how we can calculate power factor in single phase & three phase ?thank u
How to select the proper VSD to operate high inertial load
Whether it is possible to measure energy at the input of rectifier transformer (12 pulse with very high odd harmonics)
Why do not we prefer non conventional sources of energy to conventional sources?
What is order of the system?
How can claculate to attain the desired PF in the line ( HOW Much KVAR is required ) Pls Give the formula? Equate Petrochemical 0 1 how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec. 0 1 What will happened. if we feed 3phase supplay to the stater with out insert the rotor. How much current will flow through the stater winnding? Equate Petrochemical 0 1 What is required of exietation to the alternater. 0 1 why star point of HT motor not earthed? Equate Petrochemical 0 1 Why we are getting low voltage in star connection? Equate Petrochemical 0 2 What's ND relay & it's functions? Equate Petrochemical 0 2 How instantanious short circuit current is calculated? its formula? Equate Petrochemical 0 2 What is servo Motor? What's the advantages of this motor over Induction motor? Equate Petrochemical 0 2 What is core CT & it's function? Equate Petrochemical 0 3 what is meant by star/delta voltages as 440/220 in a 3 phase induction motor, and why it should be connected on STAR IN 3 PHASE SUPPLY L & T 0 4 What is required of exietation to the alternater. KNB 1 23 what is the design voltage for 6.6KV 2000 KVAR HT capacitor? Consultancy 0 3 Pls explain about vfd control?Where it is used, Give some example? siemens 1 22 Please explain me abt PQ diagaram in the power sector. 0 9
star delta starter contorl circuit... drawing..
would the same effect be achieved by reversing the connection to one winding of the induction motor 3-phase?
what r the checklist while installing a 380 kva DG set
how to calculate cooling requirement of datacentre from electrical load?
Hello seniors m an engineering student in 3rd yr..i want to know what are the software course in electrical field?i wanted to do certification course but i dont know much about the course?..Regards
in our all power plant have connected in grid and grid voltage and plant voltage is same, but as per as electrical concept the power will transmit from high potential to low potential but here altough same,then how power transmit from power plant to grid.
HOW TO SET THE EARTH FAULT SETTINGS IN ACB????????????