首页> 外国专利> PROCEDURE FOR DETECTION OF INSULATION FAULTS IN THE SPIRAS OF THE WINDINGS OF THREE-PHASE ELECTRICAL MACHINES.

PROCEDURE FOR DETECTION OF INSULATION FAULTS IN THE SPIRAS OF THE WINDINGS OF THREE-PHASE ELECTRICAL MACHINES.

机译:三相电机绕线螺旋中绝缘故障的检测程序。

摘要

System for detecting faults in the isolation of windings of windings of three-phase electric machines with at least one of them connected in a triangle, for motors and transformers, of high or low voltage. It consists of three current sensors (1), an adding device of said currents (2) and an actuation device dependent on the result of the sum of said currents (3), which may be a device for measuring the resulting current or a disconnection device with or without actuation threshold. It can incorporate a compensating system of small imbalances. It can contain a single toroidal transformer type sensor (4) that directly performs the sum (6). Phase currents can be obtained in these two ways, or by mixed measurement of some or some of the phase currents and some or some of the line currents. Of application in the electrical sector.
机译:用于检测三相电机绕组的隔离中的故障的系统,其中至少其中一个以三角形或三角形连接,用于高电压或低压电动机和变压器。它由三个电流传感器(1),一个上述电流的加法装置(2)和一个取决于上述电流之和(3)的结果的致动装置组成,该装置可以是用于测量所得电流或断路的装置有或没有驱动阈值的设备。它可以包含一个小的不平衡补偿系统。它可以包含一个直接执行总和(6)的环形变压器类型的传感器(4)。可以通过这两种方式获得相电流,或者通过对一些或某些相电流和一些或某些线路电流进行混合测量来获得。在电气领域的应用。

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