as we know that N=120f/P
speed of an im can be controled only through changing no if
poles, can we control by changing the frequncy????
Answer Posted / ranjan
yes, definitely.as u know we are using the VFD drives for
speed variation w.r.t frequency.
Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
if in 3-phase system voltage=440V,frequency=60Hz, current=400A. then if it is single phase then current=? and if it is single phasing then current=?
Both generator parallel condition shared load equally but one genrator taking ampere more than the other what are all the causes to make like this
if flux and load static in dc motor and supply voltage increases 20% then what happened in speed
What is the method of estamating of cable, CB,MCB ?
what are the condition that makes hooter blow?
Its possible to use 3core 2R of 240 sq.mm cable for 3phases & separely 50sq.mm 3core cable fully for Neutral for connection of PCC to MCC 3ph..4wire system?
what is the difference between 2 way and 4 pole selector switch???
How to calculate fault level of 11 KV system
how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.
what is dc mator?types of dc motor?losses in dc motor?what is the mechanical,electrical and commercial efficiency of a dc motor?
how a.c. genarator control power factor when its conected to grid supply by incrising or decresing excitation voltage.
anyone knows service engineer in chennai for EDM SPARKING MACHINE.CHMER PULSE CD 60 M.pL GIVE ANY CONTACT NOS
2 v/500amp/hr to 1.80vpc at 20 degree celsious 2v/5ooamp/hr to 1.75 vpc at 77degree farren .this is the capacity of a battery .what is the meaning of this . can i get a detailed explenation
How to decide and select the different earthing wire size for the different types of earthing
how oti and wti connections are different from each other?