Electrical Grounding

What is the purpose of grounding transformers?

• To protect electrical equipment
• To reduce ground resistance
• To increase ground potential
• To generate electricity

Which of the following is not a type of electrical grounding?

• Resistance grounding
• Reactance grounding
• Impedance grounding
• Voltage grounding

What are the potential hazards of inadequate grounding in a protection scheme?

• Electric shock
• Fire hazard
• Equipment damage
• All of the above

Which of the following is an advantage of using low-resistance grounding?

• Reduces ground fault current
• Increases reliability of protection equipment
• Reduces equipment damage from overvoltage
• Improves system performance

What is the purpose of a grounding system in a protection scheme?

• To reduce ground resistance
• To provide a safe path for fault current
• To increase ground potential
• To prevent equipment damage

Which of the following factors affects the effectiveness of a grounding system?

• Soil resistivity
• Conductor size
• Type of ground fault
• All of the above