Electrical Distribution System Components and Functions Quiz

Test your knowledge on power systems with questions about circuit breakers, transformers, isolators, and more.

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What is the primary function of a circuit breaker in an electrical distribution system?

To regulate voltage

To interrupt abnormal currents

To step up or step down voltage

To convert AC to DC

Which component of an electrical distribution system is designed to disconnect the electrical supply in case of excess current flow to prevent damage to the system?

Capacitor

Busbar

Isolator

Fuse

Which component of an electrical distribution system is responsible for stepping down voltage for distribution to consumers?

Fuse

Circuit breaker

Transformer

Relay

Which component in an electrical distribution system is used to protect equipment from overvoltages and lightning strikes?

Fuse

Surge arrester

Transformer

Relay

Which component in an electrical distribution system regulates voltage and protects against voltage fluctuations?

Fuse

Circuit breaker

Transformer

Relay

Which of the following components is responsible for connecting the distribution system to the consumer's premises?

Substation

Transmission line

Service drop

Distribution transformer

What is the function of an isolator in an electrical distribution system?

To regulate voltage

To interrupt normal currents

To disconnect a part of the system for maintenance

To convert AC to DC

In electrical distribution systems, what is the purpose of an earthing system?

To regulate voltage

To protect against electric shock

To interrupt abnormal currents

To convert AC to DC

In an electrical distribution system, what is the purpose of a recloser?

To regulate frequency

To maintain voltage stability

To automatically restore power after a temporary fault

To protect against lightning strikes

#10

Which of the following is not a typical voltage level in an electrical distribution system?

11 kV

33 kV

230 kV

400 kV

#11

What is the primary purpose of an overhead line insulator in an electrical distribution system?

To regulate voltage

To conduct electricity

To prevent leakage current to the supporting structure

To convert AC to DC

#12

Which of the following components is used to connect different sections of a distribution line, allowing flexibility in system operation?

Fuse

Isolator

Circuit breaker

Switch

Electrical Distribution System Components and Functions Quiz

What is the primary function of a circuit breaker in an electrical distribution system?

Which component of an electrical distribution system is designed to disconnect the electrical supply in case of excess current flow to prevent damage to the system?

Which component of an electrical distribution system is responsible for stepping down voltage for distribution to consumers?

Which component in an electrical distribution system is used to protect equipment from overvoltages and lightning strikes?

Which component in an electrical distribution system regulates voltage and protects against voltage fluctuations?

Which of the following components is responsible for connecting the distribution system to the consumer's premises?

What is the function of an isolator in an electrical distribution system?

In electrical distribution systems, what is the purpose of an earthing system?

In an electrical distribution system, what is the purpose of a recloser?

Which of the following is not a typical voltage level in an electrical distribution system?

What is the primary purpose of an overhead line insulator in an electrical distribution system?

Which of the following components is used to connect different sections of a distribution line, allowing flexibility in system operation?

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