Calculated-industries 5070-A User Guide Manual do Utilizador descarregar pdf (Página 23)

22 — electricalc

Pro

Finding Amps

What is the current (Amps) for a load drawing 8,250 Volt-Amps

on a 240 Volt, Three-Phase circuit?

KEYSTROKE DISPLAY

 

1. Set to 3-Phase:

  (3Ø)

3Ø 3 PH

2. Enter VA:



VA 8,250.

3. Enter Volts:



VOLT 240.

4. Solve for Amps:



AMPS 19.846416

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?

KEYSTROKE DISPLAY

 

1. Set to 1-Phase:

  (1Ø)

1 Ø 1 PH

2. Add VA loads:



7,800.



22,900.



28,000.



36,900.



43,370.

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Calculated-industries 5070-A User Guide Manual do Utilizador Página 23