What is the main role of the filter in the power line
Release time:
2023-09-20
As the name suggests, it is a device for filtering waves. "Wave" is a very broad physical concept. In the field of electronic technology, "wave" is narrowly limited to the process of describing the fluctuation of various physical quantities over time. This process is converted into a time function of voltage or current through the action of various sensors, which is called a time waveform of various physical quantities, or a signal.
What is the main role of the filter in the power line
Because the independent variable time' is continuously valued, it is called a continuous time signal, and is customarily called an analog signal (Analog Signal). With the emergence and rapid development of digital electronic computer (generally referred to as computer) technology, in order to facilitate the processing of signals by computers, a complete theory and method of transforming continuous time signals into discrete time signals under the guidance of sampling theorem has been produced.
That is to say, the filter can express the original signal without losing any information only by using the sample values of the original analog signal at a series of discrete time coordinates. Since the concepts of wave, waveform and signal express the changes of various physical quantities in the objective world, they are naturally the carriers of various information on which modern society depends for survival. Information needs to be spread, relying on the transmission of waveform signals.
Signal in its generation, conversion, transmission of each link may be due to the existence of the environment and interference distortion, even in a considerable number of cases, the distortion is still very serious, so that the signal and the information it carries is deeply buried in the noise.
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What is the main role of the filter in the power line
As the name suggests, it is a device for filtering waves. "Wave" is a very broad physical concept. In the field of electronic technology, "wave" is narrowly limited to the process of describing the fluctuation of various physical quantities over time. This process is converted into a time function of voltage or current through the action of various sensors, which is called a time waveform of various physical quantities, or a signal.
2023-09-20
Transformer short circuit fault reason
There are many reasons for transformer internal faults and events caused by short circuit at transformer outlet, which are related to structural planning, quality of raw materials, technological level, operating conditions and other factors, but the selection of electromagnetic wire is the key. From the analysis of the transformer in recent years, it can be seen that there are roughly the following reasons for the electromagnetic wire.
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Coil inductance value considerations
The inductance value in the total loop with different connection modes is different. When the four coils are connected in parallel, the inductance value is the smallest and the current in the loop is the largest; when the four coils are in reverse series, the inductance of the loop is the largest and the current of the loop is the smallest. No matter from the analysis of the current flowing through each coil or the energy distributed from the coil, the connection mode of four coils is the most appropriate.
2023-09-20
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