【Daily Question】Question from the 20151119 issue
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Participation reward: 2 Wealth. Reward for correct answer: 9 wealth. In a large ground current system, the type of fault whose fault current contains a zero-sequence component is ( ). A. Two-phase short circuit B. Three-phase short circuit C. Two-phase short circuit to ground D. Irrelevant to the type of fault. 【Production and Management Division】Seeking moderators and technical discussants to join
In a large ground current system, the type of fault whose fault current contains a zero-sequence component is (A). A. Two-phase short circuit B. Three-phase short circuit C. Two-phase short circuit to ground D. Irrelevant to the type of fault.
D is independent of the type of fault; the presence of zero-sequence current is generally caused by three-phase current imbalance.
C. Two-phase short to ground. ----------------------------------------
My answer: A. . . . . . . . . . . . . . . .
In a large ground current system, the type of fault whose fault current contains a zero-sequence component is (C). A. Two-phase short circuit B. Three-phase short circuit C. Two-phase short circuit to ground D. Irrelevant to the type of fault.
In a large ground current system, the type of fault whose fault current contains a zero-sequence component is (C).
In a large ground current system, the type of fault whose fault current contains a zero-sequence component is ( ). C, two-phase short to ground
In a large ground current system, the type of fault whose fault current contains a zero-sequence component is (C). A. Two-phase short circuit B. Three-phase short circuit C. Two-phase short circuit to ground D. Irrelevant to the type of fault.