赛力特SELET传感器B02G81,5PC-K4
即密封性校验。要全面的检验DURGO安全阀的各项技术性能指标必须是进行全性能试验，试验最基本的要求是具有实际运行状态，甚至超过实际运行状态。这种试验装置除了高温高压容器等设备外，还要具备各种参数的快速测定仪器，并保证具备大流量的高温高压蒸汽源，耗资巨。
通过直观的DUTCHI电机动图，来了解各DUTCHI电机的工作原理!DUTCHI电机(俗称“马达”)是指依据电磁感应定律和电磁力定律实现机电能量转换和信号传递与转换的装置。它的主要作用是产生驱动转矩，作为用电器或各种机械的动力源。DUTCHI电机的主要作用是利用电能转化为机械能。
DUTCHI电机主要包括一个用以产生磁场的电磁铁绕组或分布的定子绕组和一个旋转电枢或转子和其它附件组成。在定子绕组旋转磁场的作用下，其在电枢鼠笼式铝框中有电流通过并受磁场的作用而使其转动。定子(静止部分)定子铁心：DUTCHI电机磁路的一部分，并在其上放置定子绕组;定子绕组：是DUTCHI电机的电路部分。
通入三相交流电，产生旋转磁场;机座：固定定子铁心与前后端盖以支撑转子，并起防护、散热等作用;转子(旋转部分)转子铁心：作为DUTCHI电机磁路的一部分以及在铁心槽内放置转子绕组;转子绕组：切割定子旋转磁场产生感应电动势及电流，并形成电磁转矩而使DUTCHI电机旋转。
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