llachica014
Enthusiast
- What is the meaning of “Overload”? What is,the normal setting of overload relays?
- What is a short circuit and how can short-circuit faults develop in a generator and its
- What kinds of relays are used for undervoltage protection?
- What is surge?
- What is the advantage of a thermal relay over a magnetic relay?
- What is meant by ’reverse current' and 'reverse power'? Describe a relay that will operate under these conditions
- Describe the protective devices provided on distribution boards against faults and overloads
- What is the function of a fuse? Write short notes on the different types of fuses. Give suitable examples.
- What is single-phasing? How can it be avoided?
- What happens to insulation when temperature rises?