iii) A shunt motor runs at 70 rad/sec from a 460V
supply and takes in an armature current of 100A. Resistors
of 2.52 ohms and 1.64 ohms are connected in series with the
armature and in parallel with the armature respectively.
The field excitation remains direct from the 460V supply
but the generated torque is halved. Determine the new
running speed. Neglect brush voltage drop. The armature
resistance is 0.4 ohms.
[15]
Answer Posted / ajay kumar
44rad/sec
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
what is meant by motor startup supervision & motor load jam protection ?
what is the easiest method of short circuit current calculation ? pls. derive with a mathematical example in real life application.
WHAT IS THE WORKING PRINCIPLE OF A GENERATER.how is a GTG (Gas TURBANE Generater) working.plz explane
Which are resistive loads & which one are inductive loads : Refrigerator, Split air conditioner, ceiling fans, well pump, fluoresecent bulbs, T.V, CRT Monitors, Adsl Routers, C.P.U, Printers, Deep Freezers, Speakers, DVD Players, Microwave oven etc. ? Output Power for these Appliances Would be same like this : P = V * A * P.F Or would be changed ? thanks
How to select batteries required for ups and the inverter if we Known load? And how AH is selected of battery?
What is the main purpose of c.f.b.c.boiler
in india per day how much power is generated including all power station
How to determine the breaking capacity such as break down current and break down voltage for VCB and CT's.
Why an ac systems are preferred over dc systems?
difference between high and low impedance BUS BAR relay??
What is a Phase shift meter? Where can I get one?
how test transfomer(3 phase75kva) by megger
what kind of technical test that i need to learn because i have an interview tomorrow.. please someone help me..
primery try cell?
why any centrifugal blower draw more current in starting. consider id fan and fd fan?