What to pay attention to 3kva off grid solar inverter wholesale？

The price of 3kva off grid solar inverter is not too low, solar inverter and many brands also began to increase the production input, cost increase, quality is better, but the price is more preferential.If the purchaser wants to buy this kind of inverter in bulk, the sine wave inverter on the one hand must be considered the price, the price is too high beyond our budget, is not very cost-effective;On the other hand, we should pay special attention to the details of our wholesale cooperation. Only in this way can we protect our rights and interests.

One, whether the performance meets the requirements.Now we see some 3kva off grid solar inverters, the performance may not be very strong, even the power is not up to standard, solar inverter this will affect our later use.Therefore, we have to test its performance. If the sine wave inverter is purchased directly in the physical store, it can be directly tested and then decide whether to buy.If the purchase is through the network, you can also directly through the network to compare the parameters, and to explain in advance, once the performance does not meet the requirements, must be replaced immediately.

Confirmation of wholesale prices and services. 3kva off grid solar inverter Wholesale must determine the wholesale unit price is how much, only in this way can let us know whether the price is reasonable, whether there are other concessions. Of course, we also need to determine the specific after-sales service, after all, the wholesale quantity is more, not necessarily to ensure the quality of all inverters is the best, if there are problems, later processing is also very important.High cost performance, performance excellence, and ensure that the service of the product is our best choice.

What are the advantages of the brand solar power inverter？

For many consumers, “brand” is probably means that the prices are higher, but with the change of the concept of people over the years, we also found some really big brand price is more cost-effective solar power inverter, and brand product quality is better, guarantee, all aspects of course is our first choice.And the inverter of brand also has more advantage, it is worth our choose and buy very much.

One advantage: a complete range of models.Brand solar power inverter type is very complete, especially some big brands will launch new products every year, is to enable their own brand to occupy the market advantage, of course, the practicality of high-quality equipment is also stronger.And the models of big brands are very complete, we need any type of inverter, can be directly purchased, do not worry about the problem of shortage.

Advantage two, quality assurance.To establish a big brand, is also through the corresponding national audit, and many businesses are also in strict control, only in this way can let their brand go further, more influential.Brand solar power inverter quality is strictly controlled, quality products can be sold to the market, as long as we can buy through regular channels, can be guaranteed.

Advantage three, the price is more reasonable.In fact, the price of brand solar power inverter is more reasonable, after all, the production mode and cost of such products are close to each other, and the market price is unlikely to have too big a difference.Compared with other types of products in the market, the inverter of the brand is more cost-effective, and the brand will provide us with high-quality after-sales service, and such a brand business to cooperate, of course, we do not have to worry about any problems.

What is the function and role of solar inverters?

Solar inverter not only has direct ac conversion function, but also has the maximum limit to develop the function of solar cell function and system fault maintenance function. It is summed up with active operation and shutdown function, the maximum power tracking control function, anti-operation function (grid system with), active voltage adjustment function (grid system with), dc detection function (grid system with), dc grounding detection function (grid system with). Here a brief introduction to active operation and shutdown function and maximum power tracking control function.

1, active operation and shutdown function after sunrise in the morning, the solar radiation intensity gradually strengthened, the output of the solar cell also increases, when the solar inverter task to reach the required output power, the solar inverter is active start operation. After entering the operation, the inverter will take care of the output of the solar cell module all the time. As long as the output power of the solar cell module is greater than the output power required by the inverter task, the inverter will continue to operate.Until sunset, the inverter can operate even on rainy days.When the output of solar cell components decreases and the output of the inverter approaches 0, the inverter will form a standby mode.

2, the maximum power tracking control function of solar cell module output is with the solar radiation intensity and solar cell module itself temperature (chip temperature) and change.Because the solar cell module has the characteristic that the voltage decreases with the increase of the current, there is an optimal task point that can obtain the maximum power. The intensity of solar radiation is changing, and obviously the optimal mission point is also changing. Related to these changes, the mission point of the solar cell module is always at the maximum power point, and the system always obtains the maximum power output from the solar cell module. This control is the maximum power tracking control. Solar power system with the biggest characteristic of the inverter is to include the maximum power point tracking (MPPT) this function.

What are the advantages of inverters in solar systems?

For solar inverter, most people may know about solar energy rather than inverter, but with the continuous development of science and technology, solar inverter has been widely used in our life, and there are solar inverter.Solar ac power systems, as well as the increasing number of buildings in today’s life, solar inverters also need to be updated.Today, TANFON inverter manufacturer will introduce in detail:

The solar energy system in solar inverter is mainly composed of panels, charging controller, inverter and battery.Most people know this.However, the inverter may reach fewer people, and the inverter is actually one.A device for power conversion is a device for converting the direct current in a battery to alternating current.Frequency converters can be classified according to excitation mode, mainly including self-excitation frequency converters and other excitation frequency converters.

First of all, solar inverter is the core power generation module of photovoltaic power station, and its position is irreplaceable.This also determines that as long as the solar market exists, the solar inverter market will not die.Today, solar energy is a new energy with outstanding advantages, the application of the future can be imagined.It can be seen that the inverter has a broad development prospect and a broad market.

Secondly, the solar inverter is environmentally friendly and clean.After all, it is a product that USES solar energy and causes little pollution to the environment. However, the manufacturer will strictly comply with the requirements for the production and application of frequency converters.They will not take it lightly, protect the environment, protect people’s health, and make everyone feel more comfortable when using new energy.

Finally, solar inverters have been passed down from generation to generation for better safety and reliability.After learning from the experience of European countries, many domestic manufacturers have adopted serial inverters, and the number of photovoltaic power generation accidents has decreased.The number of imported manufacturers is almost zero.After the replacement of other types of inverter, the safety performance is rapidly improved.

What should we pay attention to when using led explosion-proof flood lights？

Now on the lamps and lanterns market, the lamps and lanterns of various performance, can meet the needs of different occasions. One of them is LED explosion-proof flood lights, such lamps in use, there must be some places need to pay attention to, in order to better play its role.But in the specific use, all need to pay attention to what?

First, to periodically eliminate the explosion-proof flood light shell dust and dirt, need to improve the luminous efficiency and heat dissipation performance of lamps and lanterns.Its clean way is also very simple, according to the protective ability of lamp casing, take spray water or wet cloth to wipe.When gush cleanness, need to cut off power supply first, cannot come with dry cloth to scrub the plastic casing of lamps and lanterns, lest generation electrostatic.

Second, check whether there is any trace of foreign body impact on transparent parts, whether the protective net is loose, off welding, corrosion, etc., if there is, immediately stop using, also need to timely maintenance and replacement.Light source damage, need to immediately turn off the light, to replace, lest because the light source can not start, let the ballast and other electrical components in an abnormal state for a long time, even LED explosion-proof flood light, that is the same.

At last, if come in damp environment with lamps and lanterns, when there is water inside lamp cavity, need in time to clear, replace the component that seal, assure the protective performance of casing.When opening the lampshade, according to the warning sign to request, will power off, and then to open the cover.

How to choose a solar inverter for rural roof installation?

The choice of solar inverter is a headache for many people, because in the face of additional conditions, do not know which type of inverter should be chosen for the home.

Last month, the website received a message from a rural user who wanted to build a 5kW photovoltaic system on his roof, but did not know what to choose which type of inverter.

He first looked at the price on taobao, the same brand price difference is a lot, and did not find the official flagship store;Consult in WeChat friend circle next some time, a few agent say oneself are some manufacturer to take goods to belong to certain place directly total generation, but a place appears a few total generation, who should choose?Contact several manufacturers, each company said their own better than each other, the advantages of a pile, but which is good?Finally found the biggest inverter company, but the other party heard as long as a 5kW, simply said you contact a regional agent!

Why is it so difficult for rural people to choose a inverter?

In fact, there are still tricks to be found for the selection of inverter in photovoltaic system.Think of it in terms of cost, efficiency, and performance.

一、Cost determines user choice

For rural users, the construction of photovoltaic system is mostly considered from the perspective of financial management and investment.This also provides opportunities for individual vendors to push cheap inverters into the market in order to capture the market.It doesn’t hurt to be cheap, as long as it’s not built on poor quality.But in reality, cheap is the same as low quality.

Photovoltaic inverters used in the system are series inverters, which are small in size and light in weight, and convenient in handling and installation. They do not need professional equipment and tools, not to speak of power distribution room. They are usually installed next to photovoltaic modules.

Its costs are not external, so where?Certainly in its interior, the inverter is composed of many components, such as IGBT, fuse, capacitor, sensor, relay, diode, microprocessor, segment, resistance, and so on, do not look down upon these components of different brands of components are very different.In addition to the inverter panel processing, the size of the display screen is also stored in a large gap.

二、efficiency is very important in the era of photovoltaic power generation, inverter efficiency to look like this!

When writing this article, I also consulted the mainstream inverter manufacturers in the industry. As far as the brochure is concerned, the maximum efficiency of each inverter can almost reach 98%, or even higher.The efficiency of inverter is the basic guarantee of photovoltaic power generation and user income. The main difference of inverter efficiency among different brands is system optimization and line loss.User system commonly used group inverse modulator, each group battery string input to a inverter, the inverter and battery of input string independently MPPT, ensure that each set of string maximum power, even if a particular set of string caused by a lack of solar radiation or disconnected because of malfunction, the other set of string is not affected also continue to normal power.

In practice, the consideration is the sole indicator of power inverter efficiency, have to do the EPC companies to compare the two different brands of inverters, often using the same board with a power inverter, but it is a kind of method, but not absolutely accurate, here we only speak a little, screen shows the output of inverter can be man-made operation, effective rate also can control software, the most accurate or the meter shall prevail.That’s why some users are wondering why the Numbers on the inverter screen are different from the Numbers on the meter.Of course it’s not very common, but don’t be surprised when you do.So in the selection of comparison to find the appropriate efficiency comparison method.

三、A good command of the operation characteristics of the inverter will improve the lifetime power generation.

Above we mentioned that the inverter consists of so many components, the performance of these components determines the performance of the inverter.The inverter in the system usually has IP65 protection class.

Inverter operation process is an exothermic process, in a steady stream of electricity at the same time, there are a lot of heat caused, it will be around the inverter should have enough convection space, used to spread out around the heat, the system usually in natural cooling is given priority to, not with a fan, large inverter often fitted with cooling fans.

Although the inverter has IP65 protection rating, when you expose it to harsh environment for a long time, it will affect its service life and power generation capacity.Want to inverter stable operation for 10 years, 20 years, for its “care” is essential, although will not be configured on the system inverter room, but try not to expose its natural, usually will give its top with a awning.

四、Full certification can be a standard of choice.

No matter the inverter is exported abroad or sold at home, the country has strict standards for it. The most authoritative one at home is CQC certification. For the projects with special requirements, it should meet the certification of the leader.

In addition, the national quality control center will conduct sampling inspection of inverter products of different batches to domestic inverter manufacturers every year, and will publish the results. If even the national quality control department can not pass the selective inspection, do you dare to say that the inverter is reliable?It can also be used as a reference when making choices.

Here we said the first, on the whole pv inverter according to the actual situation of the users to install to select the inverter, not only can save the engineering cost, simplify the installation conditions, shorten the cycle of
installation, and can effectively improve the efficiency of power generation system, summarized as the principle of efficient, reliable, low cost, these three are closely together, is one problem for the whole system will appear problem.

 

outdoor rgb led flood lights engineering design needs to pay attention to two points?

Outdoor rgb led flood lights are often used to make the building more distinctive. But rgb led flood lights should not ‘swallow up objects in the sea of lights’ outdoor rgb led flood lights should be able to visualize the rough

outlines of different planes and components of an object by having more or less illumination or shadows in adjacent areas. In the meantime, the number, orientation and projection angle of outdoor rgb led flood lights are key issues.

1、Angle and direction of projection

Generally speaking, with the partition of a group of outdoor rgb led flood lights along the same direction to the target projection, or from two directions to contrast the color projection, can be enhanced three-dimensional sense. In order to see the shadow and rugged appearance, the lighting direction should be different from the survey direction, and the two directions should form a point of view of at least 45°.

2、Projection spacing with brightness

At night, the visibility of the details of the building and sculpture depends primarily on the brightness, so the outdoor rgb led flood lights can be set up far apart or near apart, or exposed or shaded, depending on the need.Distant interval projection can improve the uniformity of brightness.Close – spaced projection emphasizes the details and texture of the surface of light.To whole receive illuminative face for, the uniform brightness of its upper part is 2~ when 4 times, can make investigator produces the feeling that brightness of fluctuation part is flat.

If we choose same kind of illume method to the huge build thing on both sides of city main road, so can give a person a kind insipid, even the sense of mechanical stagnation.So how do you deal with this?

1、To take into account the building materials and light source combination, the building outdoor rgb led flood lights illumination illuminance is generally between 15~450lx, size depends on the surrounding lighting conditions and the reflection of the building materials;

2、The modelling that should consider building object and illuminant colour photograph are united in wedlock.According to the shape of the building can choose colorful lighting, in the building of the front and side of the building between a significant color contrast, increase a festive atmosphere;

3、The building is outdoor rgb led flood light with neon lighting.About the building is outdoor rgb led flood light alone is not good, but also can cooperate with neon lighting, in the lighting design of a building, the group building part can be decorated with neon lights, the main building can choose outdoor rgb led flood lights, according to the shape of the building choose neon lights, constitute a main type of lighting.Special construction can complement the
environment with special lighting effect.

Do you know the advantages of using rgb led flood lights?

At night, the city’s landscape brightens and becomes a beautiful landscape,  adding a unique charm to the city. These brightenings are achieved by rgb led flood lights,  so where does it apply and what advantages does it have over ordinary lighting?

First, rgb led flood lights are rarely used for indoor lighting.  Basically used for outdoor buildings, gardens, scenic spots, sculptures and other carriers. The purpose is to make a certain area brighter than the surrounding environment,  make the bright objects more prominent in the night environment,  enhance the bright area to become the visual center,  and gather the nighttime popularity.

Another prominent advantage of rgb led flood lights is that they compare with ordinary lighting.  The purpose of general lighting is to ensure normal visual brightness at night.  rgb led flood lights are to consider human and environmental factors on the basis of lighting,  to create a more energy saving,  environmental protection,  comfortable,  beautiful,  people-oriented lighting environment.

Precautions for rgb led flood lights construction:

Early stage choose rgb led flood lights company should pay attention to: carry out rgb led flood lights company in place in time in the early stage of the project,  as rgb led flood lights illuminative later period involves the work of the part such as electrification,  curtain wall, ground, will have a certain influence. In the early stage of rgb led flood lights design,  we must fully understand the structure and characteristics of the building,  try to hide the lamp,  avoid the lamp exposure of the impact on the structure of the building. The design of rgb led flood lights should avoid too flowery,  achieve expected effect.

During the construction of rgb led flood lights,  attention should be paid to check whether the indicated voltage on the lamp of the rgb led flood light product is consistent with the input voltage of the coming link before installation,  so as not to damage the LED lamp. Before installation, the installation position shall be able to bear 10 times the weight of the product, and the installation position shall be flat without vibration,  shaking and fire hazard. If the external cable of the lamp is damaged,  it should be replaced by the rgb led flood lights manufacturer or relevant qualified personnel to avoid danger.

Component solar Inverter – the most widely used on grid solar inverter

As a basic on grid solar inverter, the component inverter is believed to be the best known inverter. component inverters are the most widely used inverters in China and internationally. As the grid-connected inverter is based on the modular concept of the photovoltaic industry, each component unit will be equipped with a corresponding inverter. Therefore, even a large-scale photovoltaic power plant can achieve a high-efficiency power supply under the AC power supply voltage without being affected by the outside world. If DC power is used, it can also effectively increase the power generation by utilizing the characteristics of the best matching point of the PV module and the inverter, thus effectively reducing the cost and safety of the power generation control system. It is a very reliable microcomputer. Control System. So as a basic inverter, what are the more common applications of component inverters in our daily life?

Since on grid solar inverters sometimes cannot operate individually, we need to use multiple components of inverters at this time. Different from the string inverter, the combined photovoltaic inverter is formed by several inverters to form a photoelectric combination, thereby implementing one or even several inverters to operate simultaneously, and the power generation control system The reliability is effectively improved to a new level. Therefore, in many large enterprises or developed countries, this form of inverter is more suitable for high-intensity labor, and therefore occupy a leading position in the photovoltaic industry.

In general, each component of the on grid solar inverter has a separate maximum power peak tracking, so that the effective coordination of the inverter and the components can be ensured, so that the two can better complete the small-scale power station. Operation. However, in terms of its power generation efficiency, it is still far lower than the string inverter. why? Because the component inverter generally completes the cooperation with the inverter through a single component, and the component is realized by one or more, thereby solving the larger power supply.

Although as a small-scale on grid solar inverter, component inverters are still widely used. Because in our daily life, there are still quite a lot of household appliances and so on that inverters of such components are needed. Because the power is much smaller than other component inverters or multi-string inverters, it also has good security and reliability. So it is an ideal inverter. In addition, the matching of the component inverter and the household voltage is matched, so that it can be connected with the power generating device and the socket of the ordinary household user to complete the system control of the home appliance.

The multi-component inverter avoids the shortcomings of the ordinary on grid solar inverter, and thus can be generally applied to some power plants with a large power generation scale. Commonly used are photovoltaic power plants of more than kilowatts. Due to the characteristics of the multi-component inverter, several common DC power sources can be quickly converted into AC power at the same time, which is widely favored by large power stations and manufacturers, and has been well received.

You should listen to the advice of professional led flood light manufacturers

In recent years, the installation of a large number of landscape lights in the city, to a certain extent, improve the overall image of the city, but also caused a huge waste of resources.Some counties, towns and villages have also started night landscape projects, many places of landscape lighting even overnight open.Landscape lights consume a lot of electricity and open for a long time. Too many light sources cause serious light pollution, which also causes new environmental pollution and intensifies energy consumption.Led flood light manufacturer to this proposal: governmental orgnaization should take the lead to advocate healthy life idea, increase propaganda the harm of light pollution.Under the premise of ensuring basic lighting and not affecting the normal life of the masses, the external landscape lighting of public buildings is reduced and the opening time of municipal landscape lights is shortened.Landscape lighting is charged at a rate higher than that of lighting, and the price adjustment mechanism is used to urge landscape lighting owners to arrange lighting time reasonably and eliminate waste of resources.Professional led flood light source all gather in a direction of the working surface or evenly scattered in all directions, are not conducive to shaping the three-dimensional sense of the object.The position of light source should be adjusted according to the volume, shape and material of the object being illuminated, and the image of the object should be reconstructed.

Bridges, which connect rivers, oceans and ridges, play an important role in transportation.With the development of local economy, Bridges have become part of the local landscape.Lighting, as an important part of bridge construction, in addition to meeting the basic requirements of functionality, how to create a lighting with local aesthetics is also the key to the significance of the existence of a bridge.Different from ordinary buildings, bridge lighting must meet both functional lighting and artistic aesthetic requirements.Professional function of led flood light lighting requirements of bridge horizontal illuminance, vertical illuminance, evenness, anti glare, security and other technical indicators in lighting design must be considered in turn, in addition, the landscape lighting also cannot be ignored, how to do both as the test city bright project design level and the innovation of the design or not. Led flood light manufacturers bridge lighting process is in the bridge has been completed after the construction of the construction of additional lights, lighting project is mainly to highlight the shape of the bridge, to beautify the city at night.

The city at night under the colorful lights decoration, can show a completely different scenery, even more beautiful than the day.The beautiful night and the beautiful lighting of the buildings often make visitors linger and revel in themselves.colored led flood light generally has strong emotional characteristics, which can greatly enhance certain emotions.Therefore, the use of professional floodlight color light is not only based on the building function, use requirements and surface materials, but also consider the building style, historical background and environmental factors.In general, for a memorial buildings, government agencies, state representative and style features obvious large buildings, etc., should be careful to use colored light in the night scene lighting, mainly use such as white metal halide lamp and so on, if necessary can be used in local small amounts of light color, highlight the building’s overall image and charm.Liaoning floodlight design culture to unify the lights, no rejection or devotion to something light expression, synchronization with the development of age and society, through the different light color technique for performance, the projection Angle, atmosphere, and to each region to distinguish it from other areas, in order to better lighting effects to the urban motif.

If the lighting fixtures on both sides of the bridge are too high, the lighting radiation and set off effect are not obvious;If the lighting lamp position is too high, the lamp is easy to receive outside damage, safety risks and operation and maintenance costs increase.The installation position of lamps and lanterns is low, the construction and maintenance of professional led floodl ights are more difficult in the future, the cutting bridge is more affected by the lighting, and the distant view effect is poor.The guardrail is usually the place which needs the light to render, can show the entire overpass scenery, has the very big significance to the overpass overall display.There are two ways to use: one is to use a continuous line of lights outline the outline of the fence;Another kind of method of liaoning floodlight is every lie between a paragraph of distance to install a point-like illuminant, it can draw the outline that gives parapet already, can give a person lively sense again.When choosing point-like light source to do guardrail decoration, the light source used is generally LED light source.There are many kinds of light source, you can choose optical fiber, cold cathode tube, fluorescent tube or LED light source.When choosing linear illuminant to decorate guardrail on bridge, also can have a lot of expression form.For example, can use monochrome, can also use alternate colors, or through the computer controller, to achieve fixed flicker, random flicker, gradually alternating flicker, chase and other kinds of flow color change form, make the whole bridge area full of dynamic.