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How often do power surges occur?
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Description :

For protection of rotating machines against lightning surges _______ is used.  (1) lightning arrester (2) capacitor (3) combination of lightning arrester and capacitor (4) lightning conductor and arrester

Answer :

For protection of rotating machines against lightning surges combination of lightning arrester and capacitor is used. 

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Description :

How do you measure power factor?

Answer :

P= 1.83*V*I*[email protected] where P is power           V is voltage            I is current           COS @ is P.F [email protected]= P/(1.83*V*I)  in other way cos @ = true power/apparent power

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Description :

Why do we need to correct power factor?

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Description :

What can you do to prevent a power surge?

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Answer :

By applying various power quality monitoring devices and using telecommunication technique .

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Description :

How do you calculate power loss?

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Description :

How do you power an Arduino?

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Description :

How do you find power in a circuit?

Answer :

Power can be find in a circuit by the means of meters .if an individual want to check for a power in a circuit he/she Calabria the meters on a high voltage range and put the meters Lee in parallel with the circuit he /she will know the amount of power within that circuit .

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Description :

What is the use of power factor correction?

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Description :

Can you have a power factor greater than 1?

Answer :

We cannot have power factor greater than 1. As it is a measure of cosine of angle between voltage and current. 

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