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What can you do to prevent a power surge?
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Can a power surge erase a hard drive?

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Can power surge damage your computer?

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Description :

What would cause a power surge in a house?

Answer :

If your neibour / other flat owners / your maintainer staff switch on any type of inductive load that can cause power surge / dip  

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Description :

State the purpose of surge tank and spill way in hydroelectric power station.

Answer :

Surge tank :- A surge tank is the small reservoir or tank. It is open at the top. It is installed near Vale house of turbine. It avoids water hammer effect when load on turbine reduces. (It ... ; during floods etc. In this way spill way avoids damage of dam due to excess pressure of water.

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What is meant by a voltage surge?

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Description :

State the function of following with respect to hydro power plant : I) Storage reservoir II) Surge tank II) Spillways IV) Trash rack

Answer :

I) Storage reservoir: It is the basic requirement of hydroelectric plant. Its purpose is to store water which may be utilized to run the prime mover to produce electrical power. A reservoir stores during ... of nozzles of impulse turbines. It is made of steel bars and is placed across the intake.

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Description :

The function of a surge tank is to  (1) produce surge in the pipeline (2) relieve water hammer pressure in the penstock (3) supply water at constant pressure (4) none of above

Answer :

The function of a surge tank is to relieve water hammer pressure in the penstock

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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 :

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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Description :

The surge impedance for over head line is taken as  (1) 10-20 ohms (2) 50-60 ohms (3) 100-200 ohms (4) 1000-2000 ohms

Answer :

The surge impedance for over head line is taken as 100-200 ohms

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