The inverter is a device that can control the speed of the motor, and it completes the speed regulation by adjusting the voltage and frequency of the motor. When selecting an inverter, there are several factors to consider, including the power of the motor, the type of load, the operating environment, etc. This article will specifically introduce the basic knowledge of inverter selection.
How to choose the power of the inverter
The power of the inverter is one of the most fundamental elements in the selection of the inverter. When choosing a frequency converter, you need to know the rated power of the motor first, and then select the corresponding frequency converter power. If the power of the inverter is too small, it will not be able to meet the operating needs of the motor, otherwise it will constitute excessive investment. Therefore, it is necessary to make a reasonable power match when selecting the model.
The influence of load type on the selection of frequency converters
Different load types also have a great influence on the selection of frequency converters. For example, for constant torque loads, a constant torque output type inverter is required, and for constant power loads, a constant power output type frequency converter is required. Therefore, when selecting an inverter, it is necessary to make a reasonable match according to the load type.
The working environment that needs to be considered when selecting a model
The working environment is also an important factor to consider in the selection of frequency converters. For example, if the operating environment is hot, you need to choose an inverter with excellent heat dissipation. If there is strong electromagnetic interference in the working environment, it is necessary to choose an inverter with strong anti-interference ability.
How to choose the input voltage of the inverter
The input voltage of the inverter is also one of the factors to be considered in the selection of the inverter. When selecting the input voltage, it is necessary to select it according to the type of power supply system and the voltage scale. For example, for a three-phase AC power supply, a three-phase input inverter is required, while for a single-phase AC power supply, a single-phase input inverter is required.
Pay attention to the selection of different brands of inverters
Different brands of inverters also have some things to pay attention to when selecting models. For example, some brands of inverters may have different degrees of support for the motor, and the needs are selected according to the practical situation. At the same time, the control methods and parameter settings of different brands of inverters may also be different, and specific understanding is required.
Attention should be paid to the equipment and commissioning of the inverter
When it comes to equipment and commissioning of frequency converters, there are also a number of things to be aware of. For example, when equipment inverters, it is necessary to pay attention to the correct wiring to avoid damage to the equipment caused by wrong connection. When debugging the inverter, it is necessary to set specific parameters and debug to ensure the normal operation of the equipment.
Attention to the maintenance and repair of the inverter
When using the inverter, it also requires some maintenance and repair work. For example, the radiators and fans of your equipment need to be cleaned regularly to ensure that they are excellent for heat dissipation. At the same time, when there is a defect in the equipment, it is necessary to carry out specific defect removal and repair operations to avoid damage to the equipment.
Application scenarios and selection suggestions of inverters
Inverters have a wide range of applications in industrial production, such as machine tools, fans, water pumps, etc. In different application scenarios, it is also necessary to choose different types of frequency converters. For example, in the case of water pumps, a frequency converter with constant pressure control function is required. Therefore, when selecting the inverter, it is necessary to select it according to the specific application scenario.
Control method and selection suggestions of inverter
Different inverter control methods can also have an impact on the selection. For example, regarding the application scenario of demand completion control, the demand selects an inverter with closed-loop control function. For some simple application scenarios, you can choose an open-loop controlled inverter. Therefore, when selecting the inverter, it is necessary to select it according to the specific control requirements.
Matching and selection suggestions between inverter and motor
The matching of the inverter and the motor is also one of the important elements to consider in the selection of the inverter. When matching, it is necessary to select according to the type of motor, power and other factors. For example, in the case of asynchronous motors, the need to select an inverter with the corresponding maintenance function is required. At the same time, the matching between the characteristic curve of the motor and the output characteristics of the inverter needs to be considered.
Energy-saving effect and selection suggestions of inverter
Frequency converters have a clear effect in terms of energy savings. For example, in applications such as fans and pumps, the conditioning of the inverter can complete the energy saving of the equipment. When selecting the inverter, it is necessary to choose according to the practical energy-saving needs, and choose the inverter with excellent energy-saving effect.
Frequency converter safety and selection recommendations
The safety of the inverter is also one of the factors that need to be considered in the selection. For example, for some special environmental application scenarios, it is necessary to choose an inverter with explosion-proof function. At the same time, when choosing an inverter, it is also necessary to consider its protection level and safety function.
Reliability and selection recommendations for frequency converters
The reliability of the inverter is also one of the factors that need to be considered in the selection. When choosing a drive, choose a brand and type with excellent reliability. At the same time, it is also necessary to consider the life of the inverter and the repair and maintenance to ensure the long-term reliable operation of the equipment.
The operation interface of the inverter and the selection suggestion
The operator interface of the inverter is also one of the elements that needs to be considered in the selection. When choosing an inverter, it is necessary to consider the ease of use and functionality of its operating interface. For example, some brands of frequency converters have an excellent human-machine interface, which is convenient for the user to operate and commission.
The price and selection suggestions of the inverter
The price of the inverter is also one of the factors that need to be considered in the selection. When choosing a frequency converter, you need to choose according to the budget of your practice. At the same time, it is also necessary to consider the function and quality of the inverter to ensure that the selected inverter has a good cost performance.
After-sales service and selection suggestions for inverters
The after-sales service of the inverter is also one of the elements to be considered in the selection. When choosing a drive, choose a brand and type with excellent after-sales service. For example, some brands of inverters have a complete after-sales service system, which can provide users with timely technical support and repair services.
Application cases and selection suggestions of frequency converters
Frequency converters have a wide range of applications in industrial production. For example, inverters can complete the energy saving of equipment in applications such as fans and water pumps. When selecting a drive, you can refer to some typical use cases to select the right brand and type.
The development trend and selection suggestions of inverters
With the continuous development of science and technology, the technology of frequency converters is also improving. For example, some brands of inverters now have functions such as artificial intelligence and cloud processing. Therefore, when selecting the inverter, it is necessary to pay attention to the development trend of the inverter and choose the brand and type with a good technical level.
General considerations and suggestions for inverter selection
Considering the above factors in general, we can get a general recommendation for the selection of frequency converters. When selecting the inverter, it is necessary to choose according to the needs of the practice and budget, and choose the brand and type with the appropriate power, load type, working environment and other functions. At the same time, it is also necessary to pay attention to the reliability, safety, energy-saving effect and other elements of the inverter to ensure that the selected inverter has a good cost performance.
|
More on that
|
Delixi voltage regulator working principle
In Delixi voltage regulator, the voltage correction from and under voltage conditions is performed through two basic operations, namely Oersted and step-down operation. These operations can be switched on and off manually or automatically by electronic circuits. Under voltage conditions, the voltage of the boost operation is increased to the rated voltage.
|
|
Brief description of power distribution appliances - Delixi
1. The difference between power distribution appliances and control appliances
Power distribution appliances: As the name suggests, it is a device that distributes electricity. Electricity, after coming out of the generator, is output by the bus, and can not be directly connected to the power equipment, and the demand is first output into the power station, which is the power distribution equipment, which is ...
|
|
Delixi circuit breaker model difference
CDB1 miniature circuit breaker is a kind of current-limiting high-breaking miniature circuit breaker with double protection of overload and short circuit, which is suitable for AC 50Hz, rated voltage 400V and below, rated current 63A and below circuits, as line overload and short circuit protection, can also be used under normal circumstances.
|
|
Delixi Electric plastic case leakage protector purchase precautions
There are many kinds of manufacturers and brands of electrical equipment and sales of electrical equipment on the market, we must choose the authentic brand of Delixi Electric when buying, and we must buy from regular dealers to avoid buying fakes. Everyone calls the electric tiger because electricity will form poles when it is not used properly.
|
|
Delixi takes you to understand the knowledge of resistance and resistivity
1. Resistance
Indicates the magnitude of the conductor's resistance to the current.
Conversion between units of resistance: 1KΩ=1000Ω
R indicates the resistance, and the unit of resistance is: ohms (Ω)
R=U/I
U--- voltage (unit: volts V)
I--- current (in ...
|
|
Judgment and treatment of inverter short-circuit fault characteristics - Delixi
(1) Fault characteristics
a) The first trip may occur during operation, but if it is restarted after resetting, it will often trip as soon as the speed is raised.
b) have a large inrush current, but most drives are now able to perform maintenance trips without damage. Due to the ...
|
|
The structure of Delixi small contactor
Delixi's communication contactor is widely used in industrial electrical, contactor as a kind of electromagnetic switch, its interior is mainly composed of the main and auxiliary contacts and electromagnetic coils, static cores and other parts of the control line connection and breaking.
...
|
|
Delixi integrated voltage regulator knowledge
The role of a voltage regulator is to convert an unstable DC voltage into a stable DC voltage. However, the integrated voltage regulator has a wider and wider range of applications due to its advantages such as small size, good voltage regulation performance and perfect maintenance function. There are two types of integrated voltage regulators: linear power supply regulators and switching power supply regulators.
|
|
Delixi inverter uses the keyboard to set the frequency step
Delixi inverter parameter check setting steps
Using the keyboard to set the frequency, we can use the keyboard number direct setting and the keyboard potentiometer setting two methods, and the control method can be selected by modifying the parameter P0.01.
...
|
|
The reason for the whitening of the copper bar installed on the Delixi plastic case circuit breaker
In the project, because of the 630 A circuit breaker wiring bar in the 500 kVA box-type transformer, see the second circuit breaker and circuit breaker on the left in the figure. The temperature of this corresponding region is significantly higher than that of the other two corresponding regions, and the other two phases are also hot, and the copper bars of this phase have turned white. There is no induction Deli ...
|
|
The reason for the heat and heat of the switch socket in Delixi
1. The socket quality is low quality
First of all, we should check whether the socket is a miscellaneous and inferior product, the copper clamping force in the defective socket is not good, resulting in poor contact between the socket and the plug, and the socket and plug will heat up after a long time of electrical use. So be sure not to buy cheap miscellaneous ...
|
|
Delixi product parameter unit VF and V difference
Voltage vf and v difference: The two have different meanings, vf on the battery represents the feedback voltage, while v represents the capacity of the battery, which is the unit of measurement of voltage. Lithium battery is a kind of battery with lithium metal or lithium alloy as the positive/negative electrode data and the use of non-aqueous electrolyte solution.
...
|
|
Problems in the installation and use of Delixi voltage regulator
What is the voltage regulator can not be connected in parallel, the voltage regulator is not open for a long time, what will be the problem with the voltage regulator still open under normal voltage, is it said that the voltage regulator and the undervoltage lamp is not lit to clarify that the voltage regulator is normal?
Will a normally open regulator burn it out at normal voltage?
...
|
|
Delixi inverter controller output problem analysis
The output of Delixi inverter controller does not match the operating frequency, and the analog output of the inverter is abnormal?
Solution:
First, you should confirm what hardware is wrong. Make the controller enter the manual debugging state, and use the universal ...
|
|
Advantages of Delixi parameter voltage regulator
1. Its overall induction skills are the best, its design does not use electronic devices, and the environmental adaptability and stability are the highest. When the capacity of most power grids is sufficient, the voltage is relatively stable, but with the improvement of electrification and informatization, the pollution of some power grids, ...
|
|
Delixi integrated voltage regulator knowledge
The role of a voltage regulator is to convert an unstable DC voltage into a stable DC voltage. The integrated voltage regulator has a wider and wider range of applications due to its advantages such as small size, good voltage regulation performance and perfect maintenance function. There are two types of integrated voltage regulators: linear power supply regulators and switching power supply regulators.
|
|
The difference between Delixi air switch and leakage protection switch
1. The role is different
The air switch is a kind of circuit breaker that protects the "object", which can protect the safety of the entire household wiring and electrical appliances and other items to prevent the wire from being burned due to overheating.
The leakage protection switch is a kind of circuit breaker that protects "people", which can be cut in time when leakage.
|
|
Delixi voltage regulator safety precautions
1. When the stabilized power supply is powered on, please do not disassemble the stabilized power supply or pull the input and output cables of the stabilized power supply at will to prevent electric shock or other electrical safety accidents.
2. The input and output connections of the regulated power supply must be reasonably arranged, ...
|
|
Delixi's AC contactor selection
It is selected according to the type of load current in the circuit. AC loads should be selected AC contactors, DC loads should be DC contactors, assuming that the control system is mainly AC loads, DC motors or DC loads have a small capacity, AC contactors can also be used to control, but the contact of the ...
|
|
Delixi time control switch adjustment method
Press the undo function key first, then press and hold the school time function key, then adjust the time and date to the current moment, press the punctual function key again, adjust the time that needs to be closed and open to the specified value, if you need to set multiple groups, then press the punctual function key to set, without multiple groups ...
|
|
Contact
working hours
