Importance of protective scheme

What is a protective scheme?

• A system that prevents faults
• A system that generates power
• A system that monitors energy usage
• A system that distributes energy

Which of the following is not a type of protective scheme?

• Overcurrent protection
• Earth fault protection
• Overvoltage protection
• Underfrequency protection

Why is it important to have a protective scheme in electrical systems?

• To prevent equipment damage
• To improve energy efficiency
• To increase power generation
• To reduce system complexity

What are the main components of a protective scheme?

• Sensors, relays, and circuit breakers
• Transformers, generators, and motors
• Capacitors, resistors, and inductors
• Switches, fuses, and circuit breakers

What is the difference between overcurrent and overvoltage protection?

• Overcurrent protection prevents excessive current flow
• Overvoltage protection prevents excessive voltage
• Overcurrent protection prevents voltage surges
• Overvoltage protection prevents current surges

How does a protective scheme prevent equipment damage?

• By detecting and isolating faults quickly
• By reducing the voltage of the system
• By increasing the current capacity of the system
• By minimizing the number of components in the system

ou are designing a protective scheme for an electrical system. What type of protective scheme would you use to protect against phase-to-ground faults?

• Earth fault protection
• Overvoltage protection
• Overcurrent protection
• Underfrequency protection

A protective scheme has a fault current of 1000 A. What type of protective scheme would you use to protect against overcurrents?

• Overcurrent protection
• Earth fault protection
• Overvoltage protection
• Underfrequency protection

You are designing a protective scheme for a motor. What type of protective scheme would you use to protect against overtemperature?

• Thermal overload protection
• Earth fault protection
• Overcurrent protection
• Overvoltage protection