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Electromagnetic coil


Many electromagnetic coils have a magnetic body core, a piece of ferromagnetic similar material with iron in the center, thus increasing the magnetic field. The current through the coil magnetizes the iron and increases the magnetic field of the magnetized material to that produced by the wire. This is called a ferromagnetic core or iron core coil.

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Coils


Many electromagnetic coils have a magnetic body core, a piece of ferromagnetic similar material with iron in the center, thus increasing the magnetic field. The current through the coil magnetizes the iron and increases the magnetic field of the magnetized material to that produced by the wire. This is called a ferromagnetic core or iron core coil.

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ZCT Transformer


The ZCT series zero sequence current transformers (hereinafter referred to as transformers) are suitable for detecting the zero sequence current of motors that operate for a long time or intermittently, with an AC frequency of 50Hz, a rated insulation voltage of below 690V, and a working current of below 200A (ZCT-50 is below 100A). This product is used in conjunction with motor protectors with zero sequence current detection function.

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