【Joint Study*】【Electrical Version 20160321】
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Participation reward: 2 Wealth. Reward for correct answer: 9 wealth. The three-phase busbars in the substation should be painted in ( ) colors respectively to indicate the positive phase sequence: A. Red, yellow, green. B. Yellow, green, red. C. Green, yellow, red.
The three-phase busbars in the substation should be painted in colors (B) to indicate the positive phase sequence: A. Red, yellow, green. B. Yellow, green, red. C. Green, yellow, red.
The three-phase busbars in the substation should be painted in colors (B) to indicate the positive phase sequence: A. Red, yellow, green. B. Yellow, green, red. C. Green, yellow, red.
The three-phase busbars in the substation should be painted in colors (B) to indicate the positive phase sequence: A. Red, yellow, green. B. Yellow, green, red. C. Green, yellow, red.
The three-phase busbars in the substation should be painted in colors (B) to indicate the positive phase sequence: A. Red, yellow, green. B. Yellow, green, red. C. Green, yellow, red.
The three-phase busbars in the substation should be painted in color (B) to indicate the positive phase sequence: A. red, yellow, green. B. Yellow, green, red. C. Green, yellow, red.