Power System and Capacitors Quiz

Regulators act as protective equipment on the power system by:

• controlling voltage levels to prevent damage to equipment

• increasing the current flow in the system

• disconnecting the power supply during normal operation

• reducing the frequency of the power system

A lineworker must make sure of which of the following before bypassing a regulator?

• That the regulator is de-energized

• That the bypass switch is closed

• The regulator is in neutral

• That the voltage is at maximum

Why is poor power factor a problem?

• It increases energy efficiency

• It reduces the load on the system

• It causes higher losses and increased electricity bills

• It improves voltage regulation

Capacitors help correct poor power factor by:

• Increasing the circuit resistance

• Providing leading reactive power to offset lagging reactive power

• Decreasing the supply voltage

• Converting AC to DC

What is the difference between fixed and switched capacitor banks?

• Fixed capacitor banks are always connected to the system, while switched capacitor banks can be connected or disconnected as needed.

• Fixed capacitor banks can be switched on and off, while switched capacitor banks are always connected.

• Both fixed and switched capacitor banks are always disconnected from the system.

• Fixed capacitor banks are used for voltage regulation, while switched capacitor banks are not used for this purpose.

What are differences between legacy capacitors and smart capacitors?

• Legacy capacitors lack advanced features, while smart capacitors have monitoring and control capabilities.

• Legacy capacitors are more expensive than smart capacitors.

• Smart capacitors are less efficient than legacy capacitors.

• There are no differences between legacy and smart capacitors.

What is the process for disconnecting a capacitor?

Why is shunting important for capacitor storage and transportation?

• To prevent charge buildup and accidental discharge

• To increase the capacitance of the capacitor

• To reduce the physical size of the capacitor

• To improve the efficiency of energy storage

What things should you look for when inspecting a capacitor?

• Check for bulging or swelling.

• Look for leaking electrolyte.

• Inspect for burnt or discolored areas.

• All of the above.

A lineworker can check to see if a regulator is in a neutral state?