In all the generators, the excitation supply is DC. What is
the significance of DC excitation? What will happen if AC
supply is given as excitation supply?
Answer Posted / phani
if ac supply is given as excitation supply the poles are
changed for every half cycle .d.c suuply gives the consant
pole
Is This Answer Correct ? | 32 Yes | 0 No |
Post New Answer View All Answers
Who are the manufacturer for Nitrogen based Fire Protectio/explosion prevention for Oil Filled Transformers? India and international both?
where reactive power is used
How does PLC work for sychronising of Two or more DG sets?
Can we transmit digital signal to long distance ?
A parallel flow heat exchanger will perform better than a counter flow heat exchanger. State if the statement is true or false.
1.what is the difference between transformer differential and busbar differential.2)why we are using 2 slope for trafo diif and 1 slope for busbar diff.3)what is the purpose of metrosil and stabilizing resistor in high impedance relay circuit.4)how metrosil reduce the peak volage.5)what is the funtion of stabilizing resistor
why we use condenser in the thermal power plant, althrough the same vapour will be again heated
why use phase displacement in transformer.and effect of phase displacement on transformer
A 400KVA transformer has 400 Hz frequency. If the frequency is changed to 50 Hz, then what will be the new KVA rating?
what is the series parallel connection of capacitors? and how can we use these application in three phase motors for controlling torque?
how much winding resistance of 0.75kw to 12.5kw 3ph sqwiralcage induction motor?
what kind of technical test that i need to learn because i have an interview tomorrow.. please someone help me..
plz send me HPCL apptitude paper.. maulik_elect@yahoo.co.in
how the inner and outer body is separated in aircrafts?
Why we cant store an ac power. If we coo store in which device we can?