
Reference
10-17
Table 10.N (cont.)Torque Characteristics
Electrical Formulas
Ohm’s Law:
Where:
I = Current (Amperes)
E = EMF or Voltage (Volts)
R = Resistance (Ohms)
Power in DC Circuits:
Where:
P = Power (Watts)
I = Current (Amperes)
E = EMF or Voltage (Volts)
kW = Kilowatts
kWH = Kilowatt-Hours
Application
Load Torque as Percent of Full
Load Drive Torque
Breakaway Accelerating Peak Running
Saws, circular, wood, production 50 30 150
Saws, edger (see edgers)
Saws, gang 60 30 150
Screens, centrifugal (centrifuges) 40 60 125
Screens, vibrating 50 150 70
Separators, air (fan-type) 40 100 100
Shears, flywheel-type 50 50 120
Textile machinery 150 100 90
Walkways, mechanized 50 50 100
Washers, laundry 25 75 100
I
E
R
--=
R
E
I
--=
EIR
×
=
PIE
×
=
HP
IE
×
74
---------=
kW
IE
×
1,00
-----------=
kWH
IE
×
Hour
×
1,00
-------------------------=
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