【Weekly Topic】【Electrical Edition 20160203】
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Participation reward: 2 Wealth. Reward for correct answer: 9 wealth. The connection group of a three-phase power transformer is Y,d11, which indicates that the primary winding is connected in a Y configuration while the secondary winding is connected in a Δ configuration. Therefore, the phase angle by which the line voltage of the secondary winding leads that of the primary winding is ( ). A. 30° B. 60° C. 120° D. 180° 【Haichuan Thanksgiving】--Production Region 【Production and Management Region】is seeking moderators and technical discussants to join us
A,30°~~~~~~~~~~~~~~~~
The connection group of a three-phase power transformer is Y,d11, which means the primary winding is connected in a Y configuration while the secondary winding is connected in a Δ configuration. In this case, the phase angle by which the line voltage of the secondary winding leads that of the primary winding is (A). A, 30° B. 60° C. 120° D. 180°
The connection group of a three-phase power transformer is Y,d11, which means the primary winding is connected in a Y configuration while the secondary winding is connected in a Δ configuration. In this case, the phase angle by which the line voltage of the secondary winding leads that of the primary winding is (A). A, 30° B. 60° C. 120° D. 180°
The connection group of a three-phase power transformer is Y,d11, which means the primary winding is connected in a Y configuration while the secondary winding is connected in a Δ configuration. In this case, the phase angle by which the line voltage of the secondary winding leads that of the primary winding is (A). A, 30° B. 60° C. 120° D. 180°
My answer: A. . . . . . . . . . . . . . . . . .