Answer Posted / k.prakashchandra
This relay is used for stator earth fault protection for
generators.The vector sum of three phases in all corners of
delta connected PT secondaries is zero.One of the corners is
taken through a voltage relay.Operation is as above.
| Is This Answer Correct ? | 9 Yes | 1 No |
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54 Comments Alok and Bhanu play the following min-max game. Given the expression N = 38 + X*(Y – Z) where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu would like to minimize it. Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X, Y or Z). Alok then chooses the next value and Bhanu, the variable to substitute the value. Finally Alok proposes the value for the remaining variable. Assuming both play to their optimal strategies, the value of N at the end of the game would be?
