CPE30034 Three Phase Wiring Installation Topic 1

What is the primary function of a power distribution system?

• To store electricity

• To connect generation stations to users

• To convert AC to DC

• To generate electricity

Which type of system is commonly used for residential areas?

• Single-phase system

• 3-phase 3-wire system

• 2-wire system

• 3-phase 4-wire system

What voltage is typically required for residential homes?

• 2 kV

• 230 V

• 650 V

• 400 V

What is a common feature of the radial distribution system?

• Easy to install additional connections

• Requires complex maintenance

• Limited expansion capability

• High installation cost

Which type of transformer is used in the distribution network?

• Isolation transformer

• Auto transformer

• Step-down transformer

• Step-up transformer

What is the purpose of a Ring Main Unit (RMU)?

• To generate electricity

• To connect and disconnect supply manually

• To store energy

• To convert voltage levels

What is the main advantage of a ring system in power distribution?

• Requires more maintenance

• Redundancy in power supply

• Limited user access

• Higher installation cost

Which of the following is NOT a type of power distribution system mentioned?

• Radial system

• Ring system

• Parallel system

• Grid system

What type of connection allows for continued power supply if one transformer fails?

• Mesh connection

• Series connection

• Radial connection

• Parallel connection

What is the role of a substation in the power distribution network?

• To generate electricity

• To control and distribute electrical supply

• To store energy

• To convert AC to DC