how do i convert mechanical B.H.P to electrical H.P??

Question

i am electrical engineer working in a manufaturing industry which deals with paints, i wanted know if a mechanical engineer give me a calculated B.H.P of a reactor or blender or any equipment which requires a motor for rotating it so how should i convert that B.H.P into electrical H.P so that i can decide which motor to be used for that particular equipment.

Answer 1

The conversion factor is one BHP is equal to 740 watts or 0.74 KW. The electrical Power is always expressed in KW and not in HP. There is another term called Indicated Horse Power or IHP for a motor, which is the HP generated by a motor. Due to gear transmission losses etc. the BHP available at the motor shaft can be less than the IHP generated by the motor, say by a factor of 5%. Hence in reality it is the IHP which is equal to 740 watts, and the BHP obtained requires 740/0.95 watts, to take care of the mechanical losses within the gear train of the motor.

Answer 2

Convert Brake Horsepower To Kw

Answer 3

Answer provided by Mr Vedachala is OK. However in general add 10% extra with the BHP and select the nearest rated motor. In India we still rate the motor in both kW and HP.

Answer 4

bhp is the symbol for Brake Horsepower. It is just a way to measure the horsepower a vehicle. Basically it is just a brake attached to the shaft.

Since horsepower is the power output, and brake horsepower is the effective power output, bhp may be slightly lower, but they are the same thing.

A 1.5 bhp engine is a 1.5 hp engine.

Answer 5

Emergency flashlights that you squeeze the handle to turn a dynamo and charge a battery. Or the kind you shake with a magnet and a coil inside. Another, though probably harder to find, is the generator from an old time crank telephone.