What are the operating rules of a micro-mutual inductor? What are some points to note?
2022-06-27
Miniature Current Transformer What are the operating rules? What are the points to note?
A miniature current transformer is actually an electrical device. Therefore, when using it, we must follow certain operating rules.
For our miniature current transformer, as far as its load current is concerned, it should not actually exceed 110% of its rated value. In addition, we should actually pay attention to it. Long-term overload will actually increase our measurement error. Another reason is that its windings overheat or are damaged.
In terms of the operation of the miniature current transformer, what we should actually pay attention to is that when it is in a relatively normal operating state, the open-circuit operation state of its secondary circuit is actually stopped. Otherwise, it will actually generate a high voltage of several kilovolts, endangering our personal and equipment safety. Furthermore, as far as its secondary circuit is concerned, it must be grounded at one point (maintenance).
In addition, in terms of the operation of the miniature current transformer, its connection with the secondary circuit of the voltage transformer is actually not allowed. Otherwise, our transformer will actually directly cause a series of problems and damage.
Speaking of the operation of the miniature current transformer, it should actually be noted that oil-immersed miniature current transformers should be directly equipped with an oil level gauge and its breather. In short, for operating conditions of 110 kV and above, it is also necessary to directly select a fully sealed type or a micro-positive pressure metal expander. Otherwise, there will inevitably be problems and risks.
As for the miniature current transformer, its secondary current is generally in the ampere range. However, the signal sampled by the computer is in the milliampere range. In this way, if we choose a miniature transformer, it can act as a bridge between it and the computer sampling signal, and then we can change the current secondary.
The miniature current transformer consists of a primary coil, a secondary coil, an iron core, and an insulating bracket. As for its iron core, it is actually made of stacked silicon steel sheets. Its primary coil is connected in series with the main circuit, and after measuring the current, it will generate an alternating magnetic flux in our iron core, and then the secondary coil will induce its corresponding secondary current.
Because the primary coil of our miniature current transformer is connected to our main circuit, when the primary coil is grounded, it is necessary to use insulating materials that are compatible with the voltage of our primary circuit. In this case, it is very necessary to ensure the safety of our secondary circuit and our own personal safety.
Miniature Current Transformer It can be roughly divided into two categories, that is, our measurement miniature current transformer and maintenance miniature current transformer. If you want to learn more about this, please contact us.
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