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  • How about the performance of the frequency converter? It can be known when the multimeter is tested

    How about the performance of the frequency converter? It can be known when the multimeter is tested

    As we all know, frequency converter has many protection functions, such as over-current, over-voltage, overload protection and so on. With the continuous improvement of industrial automation, frequency converter has been widely used. This article will show you how to use a multimeter to measure the quality of the inverter.
  • Talk about seven peripheral equipments of frequency converter

    Talk about seven peripheral equipments of frequency converter

    Frequency converter is a kind of electrical equipment used to change the frequency of alternating current. In addition, it also has the auxiliary function of changing the AC voltage.
  • There are 6 ways to deal with the maintenance failure of frequency converter that are not in the manual

    There are 6 ways to deal with the maintenance failure of frequency converter that are not in the manual

    After a lot of maintenance practice, we find that some faults can not be solved if the general maintenance theory and method of frequency converter are used blindly. In fact, the general user can handle, that is to ensure that the input voltage is normal, the motor connection line is normal, the motor insulation is no problem, the motor three-phase balance
  • How to quickly become a master of inverter? Only need to understand the definition of 15 Inverters

    How to quickly become a master of inverter? Only need to understand the definition of 15 Inverters

    It is believed that many power practitioners are familiar with the inverter. Compared with the traditional electrical circuit control, the inverter has a high technology content, which is a combination of strong and weak current equipment. Therefore, its faults are various, so we can only summarize the experience continuously from practice combined with theoretical knowledge.
  • What are the five energy-saving principles of frequency converter?

    What are the five energy-saving principles of frequency converter?

    With the promotion of frequency conversion technology and the promotion of frequency converter merchants, many friends subconsciously use frequency converter and energy-saving pictures. In fact, the core function of frequency converter is speed regulation, followed by energy saving. Energy saving of frequency converter needs to meet three conditions: first, high power and fan / pump load; second
  • Classification and principle of frequency converter

    Classification and principle of frequency converter

    Voltage type - the energy storage element is a capacitor, and the controlled quantity is voltage, that is to say, the voltage source is provided. Its dynamic response is slow. When braking, the reverse parallel inverter should be set on the power side to realize energy feedback, which can adapt to the multi motor driving. The output AC voltage of the inverter is rectangular wave or step wave
  • How to solve the high temperature of frequency converter and how to deal with the heat dissipation of frequency converter

    How to solve the high temperature of frequency converter and how to deal with the heat dissipation of frequency converter

    We know that the operating environment of the inverter is between - 10 ° C and + 50 ° C. The failure rate of frequency converter increases exponentially with the temperature. The service life decreases exponentially with the increase of temperature. It is reported that the service life of frequency converter will be halved when the ambient temperature is increased by 10 ℃.
  • How to select the low-voltage inverter? How to select the low-voltage inverter

    How to select the low-voltage inverter? How to select the low-voltage inverter

    Special frequency converter is mainly used in: special fan pump (refer to frequency converter driving multiple fans or pumps) load, elevator type load, tension control load, EPS type load, dust and moisture proof load, textile type load, pumping unit type load, explosion-proof type load, etc.
  • Under what circumstances does the frequency converter need to be equipped with braking resistance?

    Under what circumstances does the frequency converter need to be equipped with braking resistance?

    The frequency converter is equipped with dynamic resistance, mainly to consume part of the energy on the DC bus capacitance through the braking resistance, so as to avoid the high voltage of the capacitance. Theoretically, if there is more energy stored in the capacitor, it can be used to release the drive motor to avoid energy waste, but the capacity of the capacitor is limited
  • Precautions for frequency converter commissioning

    Precautions for frequency converter commissioning

    The setting of the output frequency range of the frequency converter is the upper and lower limit value of the output frequency of the frequency converter. The purpose of setting is to prevent the output frequency from being too high or too low due to misoperation or failure of the external frequency setting signal source, so as to prevent damage to the mechanical equipment.
  • The cause and treatment of converter over current fault

    The cause and treatment of converter over current fault

    The object of over-current protection in frequency converter mainly refers to those with sudden change property, the peak value of current exceeds the over-current detection value (about 200% of rated current), and the frequency converter shows OC as over-current. Because the overload capacity of inverter is poor, the over-current protection of frequency converter is an important part.
  • How to see the quality of frequency converter?

    How to see the quality of frequency converter?

    The quality of a thing is relatively speaking. As a power supply used to drive the motor, the frequency converter's function is to regulate the speed. If the speed of the motor can be controlled according to the requirements, and the fluctuation error is less than the equipment requirements, the frequency converter is a good frequency converter.
  • Its enough for beginners to learn frequency converter in these ways

    Its enough for beginners to learn frequency converter in these ways

    Frequency converter is a necessary part in industrial application. Its main function is to adjust the speed of motor. It is widely used in production line F, machine tools and other equipment. A lot of engineering people are in touch.
  • What are the application areas of the inverter?

    What are the application areas of the inverter?

    Load office buildings, shopping malls, some supermarkets, and factory buildings all have central air conditioning. In the summer, when the peak electricity consumption is high, the air conditioning consumes a lot of electricity. In hot weather, the power consumption of air conditioners in Beijing, Shanghai and Shenzhen accounts for more than 40% of peak electricity. Therefore
  • Six taboos of inverter control circuit wiring

    Six taboos of inverter control circuit wiring

    As the absolute main force in the field of electric control, the frequency converter can be said to be loved by thousands. Those who are familiar with the inverter know that while the inverter provides panel operation mode, it also provides auxiliary terminal (or external terminal) control mode that is convenient for remote and centralized control.
  • The inverter needs to be replaced regularly within the inverter

    The inverter needs to be replaced regularly within the inverter

    In the field of electrical control nowadays, the inverter is definitely the leading star in the world. Helpless as an inverter integrating electrical, electronic and other technologies, it is by no means indestructible! In order to ensure the safe and smooth operation of the inverter, in addition to regular inspection and cleaning of various internal accessories, it also needs to be replaced regularly.
  • Help you understand the suppression and reduction scheme of inverter harmonic interference

    Help you understand the suppression and reduction scheme of inverter harmonic interference

    Because of the vigorous development of frequency conversion technology, the use of frequency converters in various industries is getting wider and wider, but the harmonic problems of frequency converters have been unable to circumvent.
  • The influence of the frequency converter on the ordinary asynchronous motor in the frequency conversion speed regulation

    The influence of the frequency converter on the ordinary asynchronous motor in the frequency conversion speed regulation

    he speed regulating motor is designed for AC speed regulation in terms of its original design, but the most direct reason for the rise of variable frequency speed regulation is the simple structure, low cost and convenient speed regulation of ordinary asynchronous motors. If the frequency conversion speed regulation must be equipped with a special motor for frequency conversion, then there is a contradiction.
  • Feasibility analysis of frequency conversion speed regulation instead of proportional speed regulation in hydraulic control

    Feasibility analysis of frequency conversion speed regulation instead of proportional speed regulation in hydraulic control

    With the continuous progress of technology, many enterprises have made great efforts in the innovation of mechanical equipment. From an objective point of view, hydraulic control is a very important link, and many technical personnel have invested in this aspect. With a lot of time and energy, the most important task at present is the speed regulation problem in hydraulic control. Some technicians have proposed to use frequency conversion instead of proportional speed regulation
  • How to choose the right inverter (5 tips)

    How to choose the right inverter (5 tips)

    With the rapid development of the process in the field of industrial automation, it has also been widely used as a frequency converter for frequency conversion debugging. As an important role of frequency conversion speed regulation and energy saving
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