Regulators and Their Operation

What does 'Boost' mean in the context of voltage regulators?

• Increase the voltage level

• Decrease the voltage level

• Moveable contacts within a regulator

• Control panel adjustment

What does 'Buck' mean in the context of voltage regulators?

• Increase the voltage level

• Decrease the voltage level

• Moveable contacts within a regulator

• Control panel adjustment

What are 'Taps' in a voltage regulator?

• Fixed contacts

• Moveable contacts within a regulator that increase or decrease the voltage

• Voltage levels

• Control panels

How many boost and buck positions do tap changing mechanisms have in total?

• 8 boost, 8 buck

• 16 boost, 16 buck

• 32 boost, 0 buck

• 10 boost, 10 buck

What is the function of the control panel in a voltage regulator?

• The control panel receives line voltage information and automatically adjusts the tap changing mechanism for voltage variations.

• The control panel supplies power to the transformer core.

• The control panel increases the frequency of the output voltage.

• The control panel disconnects the load during overvoltage conditions.

What is the purpose of the nameplate on a voltage regulator?

• To provide information on the regulator and ensure that the control is matched with the proper regulator.

• To increase the voltage output of the regulator.

• To protect the regulator from electrical surges.

• To cool down the regulator during operation.

What does the position indicator on a voltage regulator show?

• The position of the taps between -16 and +16, and indicates a state of zero voltage change at neutral.

• The current output of the regulator in amperes.

• The temperature of the voltage regulator core.

• The frequency of the input voltage supplied to the regulator.

Regulators should always be lifted from the lifting lugs, never from the internal assembly lifting eyes.

• True

• False

What is the function of the metal oxide varistor (MOV) arrester in a voltage regulator?

• It is installed between the source and the load bushings of overhead regulators to protect the series winding from over-voltage conditions.

• It is used to increase the output voltage of the regulator during low voltage conditions.

• It acts as a fuse to disconnect the regulator during short circuit faults.

• It is used to regulate the current flow through the load bushings.

Which of the following is a part of a regulator?

• Bushing Connectors

• MOV-Type Series Arrester

• Lifting Eyes

• All of the above