Is there a chance for a motor speed to become negative..??
What is the reason for such a phenomenon.?
In that case does the motor works as a generator..???
Answer Posted / dj
This phenomenon correct
only for synchronous motor
when it is over excited it acts
like an alternator.
Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
Which motor connection is preferable star-delta or delta-star?
formula for calculation of switchgears(i.e. contactor, fuse, cb, relay etc.), if load current is given?
How to resolve if Diesel generator stop while running ?
how synchronous condenser is used in place of synchronous generator with out negotiating IEEE standards? Can i use 3 generators as synchronous generators and 2 generators as a synchronous condensers in an IEEE 14 bus system with out disturbing the standards?
in dc series motor if field wdg is shorted then
What conditions are required for transformer to operate at low frequencies ?
CAN WE CALCULATE THE NEGATIVE SEQUENCE AND ZERO SEQUENCE REACTANCE OF A GENERATOR USING ONLY ITS RATED VOLTAGE, KW, PF AND SYNCHRONOUS REACTANCE??? IF YES, THEN HOW??
How can we increase fuel-power ratio of any DG set?
what about the power of wattmeter at starting and loding?
What is a dominant pole?
What Normal(Tangent) towers and Tension(Cut-point) Towers?
if negative of DC supply used and positive is grounded through EGB, and if ELCB used in the system then is it sense the positive volatge and get tripped is it possible?
What are IP protections used for electrical panels, JB, equipments installed in explosive zones like Petrochemicals, Oil & gas
Write down the brushes of a de machine.
why do we not use equivalent voltage source in negative sequence equivalent ckt.