hello! can anyone explain to me how a 3 speeds table fan work? what are the fac

hello! can anyone explain to me how a 3 speeds table fan
work? what are the factors that are controlling the speed of
a normal table fan? Is it by varying the voltage or changing
the magnetic field? would appreciate your reply :) thx in
advance.

Question Posted / frozentear

2 Answers
5637 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

hello! can anyone explain to me how a 3 speeds table fan work? what are the factors that are contro..

Answer / k.prakashchandra

By varying the voltage .The speed controller connects
resistance in series with the supply and hence the voltage
to the motor is reduced.This type speed control goes well
with the fan as the load on the motor varies with the speed
automatically.

Is This Answer Correct ?

3 Yes

0 No

hello! can anyone explain to me how a 3 speeds table fan work? what are the factors that are contro..

Answer / bala

its not by changing the voltage are flux, its by changing
frequency we can vary the speed

Is This Answer Correct ?

1 Yes

1 No

Post New Answer

More Electrical Engineering Interview Questions

there is a # KVA Transformer of 11 KV/440V, in simple(not use formuia) how can you calculate it's HT & LT side current.

5 Answers Construction, wbsedcl,

HAI,HOW TO SET THERMAL OVERLOAD RELAY FOR DOL STATRTER FEEDER AT START AND RUNNING?

4 Answers L&T,

What is PCCB?

3 Answers ICEL, Schneider,

What is an automatic controller?

0 Answers

Is vtg is controlled by the resistor? if else how much?

0 Answers Sail,

why corona ring is used in out door switchyard lightning arrestor

3 Answers

-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.

0 Answers

WHY CAPACITOR IS NOT USED FOR THREE PHASE MOTORS DURING STARTING

1 Answers Quest,

why aggregate is placed all around substation ground.

1 Answers

What is the pro & con of having 11kv & 33kv incoming, and what is the adv & disadv. of converting from 11kv to 33kv.

0 Answers

in three 3.5 core aluminium ug cable. one cable is used for one phase by shrting R,Y and B wires and other 2 cables used for Y and b phases. balace 3 neutral wires are made common and connected to load. suddenly neutral current was more than line current what is the reason behind this?

1 Answers DLF,

what is the difference between line voltage meter and relays

4 Answers TCS,

For more Electrical Engineering Interview Questions Click Here