Answer / ulaganathan

actually,the answer to this question is,the ratings of
the motor must be in watts ,since dependent on
power ,therefore by using the formula,
1hp=740watts, this enables the conversion in
watts.
just to avoid higher ratings we are in use of hp

Answer / garima

b'coz motor rating depends upon o/p mechanical shaft
power/torque.thereof,it doesn't depend on electrical i/p power.
So it is rated in HP which is a mechanical unit.

Answer / gaju

HP is non-SI units of power,
1 HP = 746 Watts.OR 1HP x 0.746 = kW

It was originally defined to allow the output of steam
engines to be measured and compared with the power output
of draft horses.
Practicaly all system measurements converts into Electrical
System for simplicity and easy valuable results

Answer / md. zakir hosen

I just want to say shortly,
KW or MW or W is used for meaning of Electrical Power.
and HP is used to meaning of Mechanical Power sometime it
also known as BHP (Break Horse Power)which is found on the
shaft.

more info and online Earning:
http://a2zengineering.blogspot.com/

Answer / nikunj thakkar

there is one simple question that why we are using KW and not HP?
ANS:-
as we know that is HP is unit of power in mechanical sometimes it happens that we say that am heaving 150W motor
and in market it the minimum size is in 0.5HP as said in above answer it is easy to calculate KW power of motor

second we are using motor to do mechanical work not electrical work so it would be easy to say that we heaving motor in HP not in KW

Answer / jagadish

i don't no sure but thinking practically motor giving mechanical power as output so we must put motor rating is in h.p(mechanical unit ). likewise if you see in transformer ,output is electrical. so it represented in electrical unit

Answer / wasim

Stean engine or oil engine or motor are usually rated in HP
because these mation drive another machine soits power is
termed as mechanical power hence it is rated in hp.

Answer / k.prakashchandra

The output of motor is mechanical not electrical

Answer / karthik raman.b

horse is the animal which run fast even its loaded so the
motor will drive the load without affect the speed of it. so
the motor power is compare with horse power.

Answer / sivakoti

MOTOR MAKKING BY SPEED SO IT IS CALING HP.1HP MOTOR IS
LIFTING TO 746W.

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