Print PDF
Favorite
Email
Step 5Formulas
a) Fan belt sizing
Belt length = ((Alternator Pulley Diameter + Motor Pulley Diameter) *1.5708) + (2* Center to Center distance of Alternator and Motor Pulleys)
b) DC Power Shunt. Typically continuous running load on current shunts is in the order of 60-65%.
When purchasing, make sure you have a 50% factor above your expected maximum running load.
i.e. 150% of your maximum load factor.
Note: Some manufacturers build in a safety load factor of 1.2
i.e. Crompton 100 Amp Dc Shunt
c) Pulley Size Calculator. Yup thats right, you notice that when you purchase an alternator these days they may not come with a V Belt pulley, and the size of the existing pulley may not match that required for the Horse power rating / RPM for your engine.
Belt length = ((Alternator Pulley Diameter + Motor Pulley Diameter) *1.5708) + (2* Center to Center distance of Alternator and Motor Pulleys)
b) DC Power Shunt. Typically continuous running load on current shunts is in the order of 60-65%.
When purchasing, make sure you have a 50% factor above your expected maximum running load.
i.e. 150% of your maximum load factor.
Note: Some manufacturers build in a safety load factor of 1.2
i.e. Crompton 100 Amp Dc Shunt
c) Pulley Size Calculator. Yup thats right, you notice that when you purchase an alternator these days they may not come with a V Belt pulley, and the size of the existing pulley may not match that required for the Horse power rating / RPM for your engine.
| « Previous Step | Download PDFView All Steps | Next Step » |
 |
Add Comment
|
