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Vacuum: Power Factor
Andres Collazo Olmos
Background: Power factor is the amount of usable energy a device can use. The "perfect" PF is of 1.00, but is only achieved when the device releases heat besides the actual purpose of the use.
- A Watt is the real power
- An Ampere is the apparent power.
- Volts x Amps = VA= Watts
- When kW=kVA then the PF=1.00. This is when heat is released.
- When kW<kVA then the PF<1.00. This involves motor like devices.
The devic
e that will be used to look at the PF is the Kill-A-Watt.
Plug in the Kill-A-Watt and then plug in the vacuum in the device.
Turn the vacuum on and check the following information.
Answer this questions:
1. How many Watts is the vacuum using?
2. How much does it cost the power the vacuum is using? To measure the cost use $.50 x kW.
3. What would be the VA if the PF were to be of .50?
4. Why are kVA and kW not the same?
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