请问三相电机铭牌标示Y接法,如果用三角接法会怎样,为什么,急,谢谢。

2024-11-04 19:10:26
推荐回答(4个)
回答(1):

首先要了解三角形接法和星形接法的特点和不同。
三角形接法:相电压等于线电压,为交流380伏,线电流等于相电流的1.73倍。
星形接法(Y接法):相电压为交流220伏,线电压为交流380伏,相电流等于线电流。
由以上特点判断,Y接法的三相电机需要220伏的相电压。
如果将此Y接法的电机改为三角形接法的话,相电压将升高为交流380伏。
又由于功率P=U^2/R 其中R不变,而U提高1.73倍,U的平方就提高3倍,电机就会烧掉。

皖南电机 希望可以帮助到您!

回答(2):

电动机都可以接成Y型和三角形的,但需要重新将绕组抽头进行调换,一旦端子固定好了就只能按说明进行连接,如果用另一种形式去接,可导致电机效率低下甚至不能运转。

回答(3):

Y接法要看多少V,必须与电机铭牌标明的一致,通常(不含双速电机)如果Y接法是380V,那么角接就是220V,这时,角接如果接380V电机会烧掉。

回答(4):

在电压是额定电压,会过电流,会烧电机的

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