why the desirable efficiency for a motor is 60%, but in case of transformer, it is above 90%?
Answer Posted / swapnil hete
Motor is the dynamic device so, frictions losses& windage losses is include in the total losses.
on the other hand trnasformer is the static device hence there is no frictions losses & windage losses
| Is This Answer Correct ? | 11 Yes | 1 No |
Post New Answer View All Answers
At full load wat is the motor p.f And at no load will is the motor p.f?
why the making current is more than then the breaking current and if its true then its about a controling circuit or breaker power contact points
What is resonant frequency?
Why are the laminations insulated from each other?
how you will decide the distance between the power transformer and its fencing
which motor have relatively high power factor and what is reason for have high pf? 1.capacitor run motor 2.shaded pole motor 3.capacitor start motor 4.split phase motor
what is the series parallel connection of capacitors? and how can we use these application in three phase motors for controlling torque?
What is the difference between the transmission line and distribution line?
What is synchro?
what is basic difference betmeen normal & flame proof motor??
WHAT CAUSED THRESHOLD VOLTAGE TO EXIST?
hi friends this is a newcomer in your community of enthusiastic peoples. i am preparing for SSC (CPWD JUNIOE ENGG EXAM FOR ELECTRICAL) pls guide me on the same how to crack it? PLS LET ME KNOW IS ANYONE THERE WHO PASED IT? CAN I GET THE QUESTION PAPERS OF PREVIOUS EXAMINATIONS?
What type of DC motor would you see for a lift?
difference between power surge and switching transient
What is the principle of HIGH SPEED DIRECT DRIVE MOTOR ?