what happen when dc shunt motor field is sudden open in
running condition

Answer Posted / manish kumar

For a dc shunt motor if field is suddenly opened, no
current flow so no flux and no magnetic field..so according
to MOTOT PRINCIPLE...conductor experiences torque only if
it is placed in magnetic field...hence the speed of motor
decreases slowly due to inertia and finally it stops.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What does the a,b,c of 95a,95b,95c relays denotes?

2140


please explain to me how to calculate current,voltage,resistance with formula??

988


How to define Kirchhoff current law and voltage law along with simply examples.

1233


Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why?

633


What is the high series capacitance winding on high voltage power transformer ?

1623






What is warm / cold start of HT motors. How many warm start & cold start are possible in a day?

1584


What is the formula to calculate the rating of power cable for three phase current.

1672


FEINGING DECREASES THE FLUX DENSITY IN THE AIR GAP. HOW?

1686


Currently what is the highest capacity (MVA) of SPPg generator available in the market?

1343


Transmission voltage is kept 11KV,33KV,66KV,132KV,220KV due to form factor. What happen to 400KV and 765KV transmission voltage?

1699


why do we use 25kv supply for traction purpose?

1516


why do we put a transformer on soak before loading it

665


explain Density

659


WHAT IS THE MEANING OG (li = 7 In)

1555


Why transformer used in UPS??

1050