9189PH3ELECTPPT2

What causes current to flow in the electrical generation process?

• The use of a transformer

• The electromotive force

• The distribution network

• The step up of voltage

What is the purpose of a transformer in the electrical generation process?

• To decrease the voltage for household use

• To generate electromotive force

• To increase the voltage to enable current to travel through the distribution network

• To convert AC to DC

What is the approximate voltage that a transformer steps up to in the electrical generation process?

• 22,000 volts

• 275,000 volts

• 400,000 volts

• 500,000 volts

Why does electricity need to be transmitted at very high voltages?

• To increase the energy consumption

• To allow for easy distribution to homes

• To compensate for power loss through power lines

• To reduce the cost of electricity

What are the two voltages mentioned for the supergrid in the distribution network?

• 400V and 230V

• 132kV and 33kV

• 400kV and 275kV

• 11kV and 230V

What voltage is typically used for distribution in a large/commercial building?

• 230V

• 400V

• 132kV

• 11kV

What voltage is typically used for domestic dwellings?

• 400V

• 230V

• 132kV

• 11kV

What voltage do local sub-stations typically transform the supply down to for domestic use?

• 400V

• 230V

• 11kV

• 132kV

What is the typical voltage supply for a large/commercial building?

• 230V

• 11kV

• 132kV

• 400V

What is the capacity of the high breaking capacity (HBC) fuse provided by the supplier?

• 50A

• 75A

• 100A

• 150A