Calculated Industries 5060 - Manual (Page 39)

User’s Guide — 37
Finding Synchronous Motor
Horsepower
A synchronous motor is defined as
having a 27 amp load on a 240 volt, 3Ø
circuit. What is its horsepower?
Steps Keystrokes Display
Clear calculator
o o
0.
Set to synch.
S 8
SYNC 0.
Enter volts
240 U
VOLT 240.
Enter amps
27 A
AMPS 27.
Solve for HP
h
SYNC 25. HP
Ampacity Wire Sizing
The required wire size of a service
conductor can be determined based on
the specified electrical requirements
and the
w key. The wire size is auto-
matically recalculated whenever
the wire insulation (temperature) ratings
or wire material (copper or aluminum)
types are revised. Wire sizing is based
on the requirements defined in NEC
Tables 310-16 and 310-17.