Interested to Buy Any Domain ? << Click Here >> for more details...
1. If we apply dc supply to the
primary winding
of transformer it will be burnt out.
similarly dc
supply is given to field winding of
syn. motor
and armature winding of dc motor,
they are
safe. (Remember both windings
inductive nature) what is the reason
behind that?
- 2 Answers
- 4754 Views
- I also Faced
- E-Mail Answers
Answer Posted / r.durgaprasad
dc motor is protected by back emf
and syn.
motor is protected by self induced
emf. ( for
low voltage of dc supply transformer
is also safe
because there is also self induced
emf is
produced )
| Is This Answer Correct ? | 2 Yes | 5 No |
Post New Answer View All Answers
what is the effect of power factor of machines in starting current
in Contactor opearation Why there is a difference in the values of the operate and release voltage in case AC supply
What is the unit of charge and current?
In India the supply voltage is 230 volt A.C. During the negative half cycle phase becomes neutral and neutral become phase? or what will happen during negative half cycle? how the electrons flow during positive and negative half cycle?
some basic standard questions on transformer.
can we synchronize star system generators with delta system transmission line ? and how ?
hi all i like to know vat is power plot in control systems also i want to know abt latest trends in electrical & electronics
What is T’Q and X’Q and X’D ? and what is saturated as well as unsaturated ?
What is the minimum underground tank size capacity considered for firefighting purpose?
difference between power surge and switching transient
In convertor can we use rectifier thyristor in place of invertor thyristor with explain.
What is the RMS and DFT principle of analogue maesurments. Which way they are advangages. where which princples give optimum results.
how much winding resistance of 0.75kw to 12.5kw 3ph sqwiralcage induction motor?
What is the practical way to calculate the cable size for known ampere load?
Define conversion efficiency of a power amplifier. What is its value for class c power amplifier?
