Finding volt-amps, Finding kva rating, Finding wattage – Calculated Industries 5065 User Manual

Page 33

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28 — ElectriCalc Pro

Finding Volt-Amps

What is the VA rating for a 120 Volt, 22
Amp, 1Ø circuit? What is the kVA rating?

Steps

Keystrokes

Display

Clear calculator

o o

0.

Set to 1-phase

S 1

1 PH

Enter Volts

1 2 0 U VOLT 120.

Enter Amps

2 2 A

AMPS 22.

Solve Volt-amps

V

VA 2,640.

Solve for kVA

K V

KVA 2.64

Finding kVA Rating

What is the kVA rating for a 120/208
Volt, three-phase, 65 Amp transformer?

Steps

Keystrokes

Display

Clear calculator

o o

0.

Set to 3-phase

S 3

3 PH

Enter Volts

2 0 8 U VOLT 208.

Enter Amps

6 5 A

AMPS 65.

Solve for kVA

K V

KVA 23.417327

Finding Wattage

A 120 Volt, single-phase, 45 Amp electri-
cal motor has an 87% power factor.
What is its wattage?

Steps

Keystrokes

Display

Clear calculator

o o

0.

Set to 1-phase

S 1

1 PH

Enter Volts

1 2 0 U VOLT 120.

Set power factor

8 7 S W PF% 87.

Enter Amps

4 5 A AMPS 45.

Solve for Watts

W

WATT 4,698.

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