根据三相三线有功电能表的错误接线如图，绘出其感性负载时的相量图并写出功率表达。<img src="https://nimg.ppkao.com/2018-09/wangjing/2018093012443586049.jpg?sign=89b66190dd58d7538d73b30ad5cd0d35&t=62d20682" />