SGP Quiz 1

In which type of fault maximum short-circuit current occurs?

• 1. Three-phase faults to ground

• 1. Double line fault to ground

• 1. Single line fault to ground

• None of these

Possible faults may occur on a transmission line are

1. 3-phase fault

2. L-L-G fault

3. L-L fault

4. L-G fault

The decreasing order of severity of the faults from the stability point of view is:

• 1. 1-2-3-4

• 1. 1-4-3-2

• 1. 1-3-2-4

• 1. 1-3-4-2

What is the most common type of fault that occurs in a power system?

• Ground fault

• Open circuit

• Short circuit

• Overvoltage fault

Which type of fault occurs when a conductor breaks, resulting in an interruption in the current flow?

• Short circuit

• Open circuit

• Ground fault

• Arc fault

What is the purpose of fault analysis in a power system?

• To prevent faults from occurring

• To isolate and clear faults quickly

• To increase power generation capacity

• To decrease power generation capacity

In power systems, a fault is defined as __________________?

• An unintentional connection between two or more conductive parts

• A planned interruption of power supply

• A controlled flow of electricity

• A measure of system reliability

Which of the following is a balanced fault condition in a power system?

• Phase-to-ground fault

• Phase-to-phase fault

• Three-phase fault

• Line-to-line fault

Which type of fault involves a complete breakdown of insulation between conductors?

• Open fault

• Short circuit fault

• Ground fault

• Arc fault

Which protection device is commonly used to detect and isolate faults in power systems

• Circuit Breaker

• Fuse

• Isolator

• Relay

In a three-phase power system, a phase-to-ground fault can involve _________________

• Only one phase conductor and the ground

• All three phase conductors and the ground

• Two phase conductors and the ground

• One phase conductor and one neutral conductor