Calculated Industries 5065 - Manual (Page 32)

User’s Guide — 27
Finding Current Load
A building with 120/240 Volt 1Ø service
has the following loads:
Range = 7,800 VA Heating = 15,100 VA
Dryer = 5,100 VA Appliances = 8,900 VA
Lighting = 6,470 VA
What is the service load (Amps) of the
circuit supplying this building?
Steps Keystrokes Display
Clear calculator
o o
0.
Set to 1-phase
S 1
1 PH
Add VA loads:
7 8 0 0 +
1 5 1 0 0 +
5 1 0 0 +
8 9 0 0 +
6 4 7 0 = 43,370.
Enter as VA
V
VA 43,370.
Enter Volts
2 4 0 U VOLT 240.
Solve for Amps
A
AMPS 180.70833
Finding Amps from Kilowatts
What is the amperage for a 75 kW load
connected in a 120/208 Volt, 3Ø circuit?
Steps Keystrokes Display
Clear calculator
o o
0.
Set to 3-phase
S 3
3 PH
Enter kilowatts
7 5 K W KW 75.
Enter Volts
2 0 8 U VOLT 208.
Solve for Amps
A
AMPS 208.17918