1. Difference between DC and AC waveforms DC and AC voltages, the DC waveforms shown by the current waveforms are not affected by the passage of time, and the voltage and current are kept constant. On the contrary, only AC is shown, its voltage, current and its direction change periodically with time. In one cycle, the average value of the AC waveform is zero (Zero) DC and AC. The difference in waveform is the source of the difference in the nature of DC and AC.
2. DC and AC voltage classification and its use According to the "Decree of the technical standards for electrical equipment", the DC and AC voltages are divided into low voltage, high voltage and ultra high voltage. Table 2.1 shows the classification of DC and AC voltages and the use of various voltages. As shown in the table, DC can only be used for limited-purpose power supplies, while AC is widely used and widely used in factories. In the business unit and the home, there is a point mentioned here. In the field, DC is usually called DC (short for Direct Current) and AC is called AC (abbreviation of AIternating Current).
In recent years, the manufacture of AC geared motors for DC geared motors occupies an extremely important position in China's machinery manufacturing industry. The applications of geared geared motors range from vehicles to construction machinery, from watches and clocks that are common in life to automated production equipment in factories. Geared geared motors are required in almost all mechanical transmission systems. Because the gear reducer motor has a wide range of applications, the types of reducers developed according to the needs of practical applications are very rich. The miniature gear reducer is a small gear reducer that is produced to meet special needs.
Outdoor Rental Die-Cast 640x640
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Shenzhen Jongsun Electronic Technology Co., Ltd. , https://www.jongsunled.com