What kind of inverter is more durable to choose when using the harsh environment?

Of course, we must choose a high level of protection, Aosheng inverter through the selection of German Infineon IGBT module, independent heat dissipation air duct design, PCB board spraying 3 times thicker than the conventional conformal paint, etc., to fully improve the machine's resistance to harsh environments. 5-10 times longer life than conventional inverters.

The inverter is not easy to install in a vibration place, and the vibration acceleration is mostly limited to the following. Because the main circuit inside the inverter is connected to the screw.

The inverter with a harsh environment is more durable when using it, so you should take the initiative to follow the environment during use, and if the environment does not allow it, you should not use it.

1. Ambient temperature:

2. Relative humidity: 85%.

3. Ambient air quality requirements: no high concentration of dust, flammable, explosive gas or dust, no strong electromagnetic radiation source in the accessories.

4. Precautions: This equipment cannot be placed with flammable, explosive or volatile and corrosive gases for testing or storage.

Your so-called harsh environment, I don't know which one is hungry, for example, severe humidity or severe dust, if it is seriously humid or serious dust, then you should not choose IP6 inverter, you should choose IP88YP89 and so on, depending on what environment your environment is? In short, if it is the best environment, then choose the explosion-proof ABB and Siemens have inverters in this harsh environment, it is not which brand is good, but you need to choose an inverter that adapts to a special environment.

The environment is harsh, what inverter to choose than the foot that does not use our ordinary inverter? The main thing is that it is sealed, it is okay to carry water, and the management is the environmental Cultural Revolution, and the environmental isolation may be durable.

In this case, you must use a relatively high stability, and the power is as large as possible, only in this way can you do it.

This makes the film environment bad, choose and be famous, just choose the more expensive, such as three zeros, or choose other brands of better ones.

The use of strong and evil slightly choose what inverter is more durable, welcome bad words, you can choose some of the more environmentally usable some machines.

In this case, the stability must be relatively high, the use effect is relatively good, and a very good use effect can be achieved.

There are too many, as long as there is a motor, the inverter will be used, to name a few: food industry, workshop assembly line; Coding machines, mining machinery, etc.

It is the "king" of electricity consumption in the summer home. Whether the DU air conditioner saves electricity is mainly determined by the number of times the machine is turned on. Because it consumes the most power when it starts.

Homes with air conditioning should take full advantage of the timer feature. So that the air conditioner will not run all night, and can maintain a certain temperature in the room. Generally, it starts at 12 p.m. and can be set for 4 hours.

Households that have not purchased air conditioners should buy inverter air conditioners, which can reach the indoor set temperature in a short time, and the compressor will not be turned on frequently, so as to achieve the purpose of energy saving and cooling. The temperature of the air conditioner should not be adjusted too low during use. Because the lower the temperature controlled by the air conditioner, the more electricity will be consumed, so it is generally enough to lower the indoor temperature to 26 to 27 degrees Celsius.

Setting the room temperature at a higher temperature of 1 degree Celsius during cooling and a lower room temperature of 2 degrees Celsius during heating can save more than 10% of electricity, and the human body is almost imperceptible to this small difference. When setting the start-up, set high cold and high heat to achieve the control purpose as soon as possible; When the temperature is suitable, change the medium and low wind to reduce energy consumption and noise. The "ventilation" switch must not be normally open, otherwise it will increase power consumption.

Fewer windows and doors can reduce the ingress of heat from outside the room, which is conducive to saving electricity. In air-conditioned rooms, it is best to use thick curtains to reduce the loss of cool air. The length of the inner and outer connecting pipes does not exceed the recommended length, which can enhance the refrigeration effect.

When installing an air conditioner, try to choose the shaded side of the room to avoid direct sunlight on the fuselage. If this condition is not available, the outdoor unit of the air conditioner should be covered with a sun shield. Regularly remove dust from outdoor radiators and keep them clean.

Too much dust on the heat sink can greatly increase power consumption. Gree air conditioner reminds you of the advantages of inverter air conditioner Energy saving: because the inverter air conditioner adjusts the operating speed of the compressor at any time through the built-in inverter, so as to achieve reasonable use of energy; Because its compressor will not be turned on frequently, it will keep the compressor in a stable working state, which can make the air conditioner as a whole achieve the effect of saving more than 30%.

At the same time, it has a fairly obvious effect on the reduction of noise and the extension of the service life of the air conditioner. Low noise: Due to the balanced operation of the inverter air conditioner, the vibration is reduced, and the noise is also reduced.

High temperature control accuracy: It can control the cooling (heat) capacity of the air conditioner by changing the speed of the compressor. There is a change in the cooling (heat) capacity, such as the cooling capacity of 36GW frequency conversion is 360 400W, and the heating capacity is 300 6800W, so the indoor temperature control can be accurate to 1, so that the human body feels very comfortable.

What are the advantages and disadvantages of inverter:

Advantages of frequency conversion speed regulation.

1. The speed regulation efficiency is high, which is an efficient speed regulation mode. This is due to the fact that after the frequency change, the motor still runs around the synchronous speed, basically maintaining the rated slip. It is only in the frequency conversion device system that there will be a conversion loss, and due to the influence of higher harmonics, the loss of the motor increases, and thus the efficiency decreases.

2. The speed regulation range is wide, generally up to 20:1, and has high speed regulation efficiency in the whole speed regulation range. Therefore, frequency conversion speed regulation is suitable for occasions with a wide range of speed regulation and often operating under low load.

3. The mechanical characteristics are hard, and the speed change rate is less than 5% when there is no automatic control; When automatic control is adopted, it can do high-precision operation and control the speed fluctuation rate to about the right.

4. In case of failure of the frequency conversion device, it can be withdrawn from operation and directly supplied by the power grid, and the pump or fan can still continue to operate.

5. It can double as a starting equipment, that is, the motor is started to a certain speed through the variable frequency power supply, and then the variable frequency power supply is disconnected, and the motor can be directly connected to the power frequency power supply to accelerate the pump or fan to full speed. When switching from variable frequency power supply to power frequency power supply, there is generally a 400% 500% impulse current, the grid voltage drops instantaneously, and the motor is subjected to mechanical shock. In order to prevent this phenomenon, a starting reactor can be connected in parallel between the motor and the power frequency power supply to suppress the generation of inrush current at start-up.

If the prime mover is a synchronous motor, a "synchronous switching" is required.

Disadvantages of frequency conversion speed regulation.

1. From the current point of view, the initial investment of the inverter is too high, which is the main obstacle applied to the speed regulation and energy saving of pumps or fans. However, with the development of electronic technology, the cost of products has gradually increased, and its application prospects are becoming increasingly broad.

2. The higher harmonics generated by the waveform of the current or voltage output by the inverter are non-sine waves, which will have various adverse effects on the motor and power supply. This problem can be greatly improved by using PWM type inverters or current type inverters with multiplexing technology.

Is it better to have a fixed frequency or a variable frequency air conditioner? The pros and cons all tell you, don't buy the wrong one.

The use environment is preferably appropriate, the temperature and humidity are appropriate, and the installation environment is free of conductive particles and dust substances.

The temperature and humidity operating environment temperature is between -10 and 40, and more than 40 must be derated, and the maximum is not more than 50Over 40 ambient temperatures, derating 4% for every 1 increase

The relative humidity of the air is 90%, no condensation, and the inverter is also protected from direct sunlight.

Altitude. When the inverter is installed below 1000m above sea level, it can run at its rated power, and when the altitude exceeds 1000m, the inverter power needs to be derated.

In order to improve the reliability of the inverter, the inverter should be installed in a place with good ventilation conditions, and when used in a closed box, a cooling air disperser or cooling air conditioner should be installed to keep the ambient temperature below 40 degrees Celsius.

Take a look at the user manual for the drive.

To know what kind of inverter is not easy to break, we must first analyze the cause of inverter damage.

The reasons for the failure of the inverter have a lot to do with the production environment, mainly as follows:

1. Conductive dust and dust such as metals.

1) Excessive conductive dust such as metals causes short circuits in the main circuit.

2) Dust fills the cooling sheet, and the temperature is too high, resulting in tripping and burning.

2. Corrosive gases.

1) Due to corrosive gas, the toggle switch and the relay contact is poor.

2) Short circuit between crystals caused by corrosive gases.

3) Terminal corrosion causes a short circuit in the main circuit.

4) Corrosion of the circuit board causes short circuits between various devices.

3. Condensation, moisture, moisture.

1) Discoloration of the door pole due to moisture, resulting in poor contact.

2) The ignition between the copper plates of the main circuit board is caused by moisture.

3) Cause electrical corrosion and disconnection of the internal resistance of the inverter.

4) There is condensation in the insulating paper, which causes discharge breakdown.

4.The selection is not accurate, and the parameters are not adjusted to the best use state (1) The selection is not accurate, which will cause the inverter to be overloaded early, and the phenomenon of small horse-drawn carts (2) The parameters are not adjusted to the best use state, so that the inverter is often overcurrent, overvoltage and other frequent jump protection, and strain in advance.

Effective Measures:

It is recommended to use Aosheng fully sealed inverter, which can be waterproof, dustproof and corrosion-proof, which can greatly reduce the failure rate and prolong the service life of the inverter.

Do not overload the use, in strict accordance with the nameplate, the environment can not be too harsh, (the Japanese can also, the function is simple, the environmental adaptation is very strong) European and American inverters are powerful, but the environmental requirements are higher, if the environment is good, it is also very durable.

The design is standardized, the use is reasonable, and the well-maintained inverter is not easy to break.

Whether the inverter is durable or not: 1. It is related to the design and production of the manufacturer, such as the protection ability of hardware design, software design ability (involving the protection and algorithm of the inverter), the quality control of the production process, the quality of the inverter device, etc. (such as imported modules and domestic modules).

2. Occasions of use: In the case of harsh environment, some inverters do a good job of three proofs, and some even have sealed models, of course, they will be more durable. In dusty occasions, if the fan is not cleaned from time to time, it may lead to air duct blockage, poor heat dissipation of the inverter, which in turn leads to overheating of the module, and the module may cause protection failure and inverter blowing up at high temperatures. Above.

I started to make inverters in 03, and I made it clear that I had never heard of this way of distinguishing.

Inverters are now widely used, you can see the following, I hope it will help you:

Metallurgical industry: rolling mill, roller table, blast furnace fan, pump, lifting machinery, blast furnace feeding, steel mill polishing.

Rolling wire industry:

Wire Drawing Machine Winding Machine Zhi Blower Pump Lifting Machinery Fixed Length Shearing Automatic Feeding.

Iron and steel industry: rolling mills, roller tables, fans, pumps, cranes, ladle machines, converter tilting.

Power industry: boiler blower, feed pump, centrifugal mixer, conveyor belt, lifting hydropower station, flywheel.

Wire industry: wire drawing machine winding machine blower.

Chemical industry: extruders, film transmission belts, mixers, centrifugal separators, compressors, blowers, sprayers, pumps.

Petroleum industry: transfer pumps, electric submersible pumps, water injection pumps, pumping units, etc.

Chemical Fiber and Textile Industry:

Spinning machines, worsted machines, looms, carding machines, sizing machines, **air conditioners, blowers, pumps, etc.

Automobile manufacturing industry:

Conveyor belts, trucks, paint mixing, air conditioners, battery cars, etc.

Machine tool manufacturing.

Lathes, gantry planers, milling machines, grinding machines, machining centers, gear making machines, etc.

Electronics manufacturing industry:

**Air conditioner, fan, pump, air compressor, injection molding machine, conveyor belt, etc.

Paper industry: paper machine, paper machine, fan, pump, crusher, mixer, blower.

Food industry: noodle making machine, dim sum machine, conveyor belt, mixer.

Gas Water Industry:

Compressors, blowers, pumps, handlers.

Cement industry: rotary kiln, hoisting machinery, blower, pump, main drive motor, conveyor belt, vibrating feeder.

Vertical kiln fan, etc.

Mining industry: mud pumps, conveyor belts, hoists, cutters, excavators, cranes, blowers, pumps, compressors, etc.

Transportation industry: electric vehicles, electric locomotives, ship propulsion, loading and unloading machinery, air compressors, cable cars, etc.

Loading and unloading industry:

AS/RS, Trucks, Powder Conveyors, Output Conveyors, etc.

Construction industry: elevators, conveyor belts, air conditioning equipment, blowers, pumps, etc.

Plastic industry: rubber cutting machine, injection molding machine, extrusion machine, plastic film production line.

Life Service Industry:

**Fountains, Presses, Sewing Machines, Electric Fans, Industrial and Household Washing Machines, etc.

Logistics industry: three-dimensional garage, automatic warehouse, conveyor belt.

Hotel Hotel Building Industry:

**Air conditioning system, elevators, etc.

Agricultural industry: tea making machine, water pump, separation ventilation, grain depot ventilation, etc.

Experimental research industry:

Motor towing test device, spindle test device, centrifugal separator, etc.