why dc series motors never start without some load,
and what will happen if starting with out load..
Answer / sabyasachi mishra
If a dc series motor will start with load then its rotor
will rotate at enermous speed .
As we know speed(N) is directly propertional to back emf
(Eb) of motor and inversely propertional to flux generated.
So initially the motor will drawn less or no
current,hence the speed will reach at a dangerious limit.
Hence a dc series motor never started without load.
Is This Answer Correct ? | 9 Yes | 0 No |
why our power production in multiples of 11.
What are the protections required in the main lt panel which is connected to the transformer.
what is the question paper model for section engineer in RRB
What is the main difference between power transformer and Distribution transformer?
9 Answers APTransco, Bhel, NTPC,
what is the terminal voltage of dc series generator running at rated speed at no load?
What is grid collapse? what is the reason for it?
ELCP USE IN 3 PHASE SUBMERSIBLE PUMP? THEN USE 3 POLE 0R 4 POLE?
shall we use a machine having 60Hz frequency in india ? why?
why the neutral of power transformer is always earthed?
Diagram on interconnectivity of 11kv transformer with RMU (i.e, one incoming and two outgoing or two incoming and one outgoing)
what is the Mechanism of energy saver FAN how average power,reactive power, power factor e.t.c realated to it and how it apply to this FAN .and how this fan save energy w.r.t circuit analysis,plz repaly to this question this is the assignment to given to me.thanks
What is the function of an Auto reclosure relay. How does it work??