Question

relay for transmission line protection are 1 three zone 2 two zone 3 independent 4 none​

Answer 1

Answer:

Extract 1 and all the ingredients and

Explanation:

5 ⚄ to be used to be used in the first place to get to work on

Answer 2

Three zone (Option 1)

Explanation:

• A transmission line is a cable while is used to transport electricity from one place to other place.
• Generally, transmissions lines are protected by 3 zones.
• This 3 zone protection is used for the lines which are above 33kV.
• In this relay, zone 1 protects almost 80% of the length of the transmission line.
• Zone 2 helps in protecting 100% of first transmission line and 50% of the shortest transmission line.
• And, zone 3 protects 100% of first transmission line, second transmission line and 20% of shortest transmission line.

Therefore, option 1, three zone is the correct answer.