【Daily Topic】【Electrical Edition 20160419】
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This post was last edited by hesonchang214 on 2016-4-25 at 15:32. Remember to hide the answers when replying! Participation reward: 2 Wealth. Reward for correct answer: 9 wealth. For three impedance elements with the same resistance value, when connected in star configuration to a three-phase symmetric AC power supply, the ratio of the power consumed to that consumed when connected in delta configuration to the same power supply is equal to ( ). A、1∶1 ； B, 1∶2 ； C, 1∶3 ； D, 1∶4
The ratio of the power consumed when three impedance elements with identical resistance values are connected in star to a three-phase symmetric AC supply, to the power consumed when they are connected in delta to the same supply, is equal to (C). A、1∶1 ； B, 1∶2 ； C, 1∶3 ； D, 1∶4