Electrical Engineering XYZ MCQ on Faults that generally happen on underground cables include
Statement: Faults that generally happen on underground cables include:
- Earth faults
- Open circuit faults
- Short circuit faults
- All of these
Correct answer: 4. All of these
Explanation:
- Earth Faults: These occur when there is a leakage of current to the ground, usually due to insulation breakdown or damage. Earth faults can lead to safety hazards and disrupt the proper functioning of the electrical system.
- Open Circuit Faults: An open circuit fault happens when there is a break or discontinuity in the conductive path of the cable. This can result from physical damage to the cable, such as cuts, breaks, or corrosion, leading to a loss of electrical continuity.
- Short Circuit Faults: Short circuits occur when there is an unintended connection between two conductors with different potentials. This can lead to a sudden increase in current flow, causing damage to the cable and connected equipment. Short circuits may be caused by insulation failure, cable damage, or other issues.
Addressing these faults promptly is crucial to maintaining the reliability and safety of the electrical system. Fault location techniques, such as cable testing and diagnostic methods, are often employed to identify and repair faults in underground cables.