good selectivity and reliability
economy and simplicity
high speed and selectivity
all of the above
Answer is Right!
Answer is Wrong!
The correct answer is D. all of the above.
An efficient and a well designed protective relaying should have good selectivity and reliability, economy and simplicity, high speed and selectivity.
- Selectivity: The ability of a relay to distinguish between a fault on its protected circuit and faults on other circuits.
- Reliability: The ability of a relay to operate correctly when a fault occurs.
- Economy: The cost of the relay should be reasonable in relation to its benefits.
- Simplicity: The relay should be easy to understand and operate.
- High speed: The relay should operate quickly enough to clear a fault before it causes extensive damage.
All of these factors are important in the design of an efficient and well-designed protective relaying system.