POWER SYSTEM PROTECTION DET50083

Types of generator fault are..... EXCEPT

• over-current

• over-voltage

• over-speed

• balanced load

• winding fault

Types of transformer fault are......EXCEPT

• over-heating

• open-circuit

• winding short circuit

• over-cooling

Types of line fault are.....EXCEPT

• Natural phenomena

• Equipment failure

• Balanced load

• Vandalism

Generator are protected using differential protection method known as.....

• Merz-Prize

• Merz-Prince

• Merz-Price

• Compare currents at the two ends of the protected section

• Adding current of the two ends of the protected section

Busbar protection are use....

• differential, balanced earth fault protection

• Merz-Price, balanced earth fault protection

• Generator

• Power transformer

• Busbar

Protection against lightning surges are.... EXCEPT

• lightning arrester/surge diverter

• overhead ground wires

• line cable screen