Motor Rated BP 3

[jjgas]

Help! I am a Gas Engineer and am reading a document with spec for electric motor. One section states "....unless the full load BP is less than or equal to 85% of the motor rated BP". Q. Is BP referring to Byass? If not, what?

Grateful for nay help. jjgas

 

[dpc]

It would make sense if "BP" was actually "bhp" for brake horsepower. This is the power required by the driven equipment at the shaft.

A common motor sizing spec is to require the motor nameplate horsepower to be equal to the driven equipment's maximum bhp IF the motor has a Service Factor of 1.15. If the motor has a Service Factor of 1.00, the driven equipment bhp cannot exceed 85% (or 87%) of the motor nameplate hp.

 

[aolalde]

It seems to be "braking power" , the mechanical power applied by the load to the motor shaft as for stopping it. In America we use BHP for the power measured in Horsepower.

 

[jraef]

Could be either really, depending on the context. Can you give us more details?

Eng-Tips: Help for your job, not for your homework Read faq731-376