What will happen if twice the rated voltage is applied to a
DC motor?
Answer Posted / roysayan01
Firstly the brushes and commutator will simply burn out
because of the high current. Secondly insulation depends on
rated voltage and if double the rated voltage is applied
insulation failure will take place.
Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
What are the factors which influence the choice of specific magnetic and electric loadings of a synchronous machine?
Which are resistive loads & which one are inductive loads : Refrigerator, Split air conditioner, ceiling fans, well pump, fluoresecent bulbs, T.V, CRT Monitors, Adsl Routers, C.P.U, Printers, Deep Freezers, Speakers, DVD Players, Microwave oven etc. ? Output Power for these Appliances Would be same like this : P = V * A * P.F Or would be changed ? thanks
A 10 MVA, 66KV, 50Hz, Y-connected 3-phase alternator has synchronous reactance of 0.635 Ù. It is working at full load at 0.8 lagging p.f. condition. Find torque angle, neglect armature resistance.
What is advantages of VSCF wind electrical system?
Why do we apply both Differential and REF (HV and LV) protection schemes on YNyn configuration of a transformer?
one electromagnet is called
What kind of maintenance is conducted for Transformer
How would you relate your key competencies to this position?
How to test the vector group of a Yd11 transformer? what are the relations to be checked between various vectors to confirm this vector group?
if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer
sir i have cleared the apti test of EIL held on 15th march and my interview will be in new delhi on 2nd june.i will be very much helpful if u help me regarding the type of interview questions comes at EIL.(URGENT.........PLZZZZZZZZZZ...............)
What range of speed can you get with the field control method of speed control of d.c. Shunt motor?
What happened if C.T mount at any cable or Bus bar in wrong direction . C.T going on proper work or not . C,T direction is essential thing to properly work.
What are the section criteria for cables. Now everywhere XLPE power cable is used or PVC is also used?.
What happen to generator if i have unbalanced load?