Supose we have one 220v A.C fan.if we provide 220v D.C what
will be happen?
Answers were Sorted based on User's Feedback
Answer / ziauddin
if 220v dc supply is given to 1-p fan of 220v then the emf produced is zero n there are no flux ploduced by the magnet n torque wich is used to rotate fan is also zero hence it leads to burning f winding
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / muthu
wkt inductor will block DC. capacitor will block AC.
induction motor acts as a principle of induction. so it
will not work in case of DC.
Is This Answer Correct ? | 14 Yes | 15 No |
Answer / p.senthik kumaar
Then, the fan does not rotate.
Because, stator and rotor are seperated by different cycles..
It was phase shifted by 90 degree..
But, capacitor blocks a dc supply.
So, not run..
But, dc produce STATIC MAGNETIC FLUX.
and ac produce RoTATING MAGNETIC FLUX.
So, not possible in induction motor.
It, is possible only in universal motor to run both ac and dc..
Is This Answer Correct ? | 1 Yes | 2 No |
how to calculate the no. of turns in secondary side of CT?
Why in Hv transmission line as we see there are generally 6 or more than 4 conductor wires are used instead of 4 i.e. 3 for phase and 1 for neutral wire?????
How we calculat the NGR of 3phase Generator, Our generation voltage 11KV
Why the resistance grounding (NGR) is better than Solid grounding?
What is the function of RCBO? What are the different sensitivity ratings & each application?
Explain Buccholz relay in detail.
Where burned of electricity,when,who, & why.
what is power system.........?
Differentiate between Zero and Negative sequence current
What is difference between 220v/50Hz & 120V/60Hz?
i) in which cases should we go for neutral and where should we go for ground? ii) in domestic supply we are getting 230v a.c.and what is the amount of current?
1)why the transformer rating in KVA insted of KW 2)why the secondary of ct is shorted and why the PT secondary is open