SOROTEC UPS

Any power supply in the use process has its set of rules and methods, scientific use can let UPS power supply life longer. 1.Maintain the  industrial UPS power supply  regularly. Clear the dust inside the machine, measure the voltage of the battery, replace the unqualified battery, check the fan running, detect and adjust the system parameters of UPS. 2.Prohibit overload use. UPS power supply maximum boot load is best controlled within 80%, if overload use, in the inverter state, often breakdown inverter triode. Practice has proved that for the vast majority of  online interactive UPS , control its load in the 30% ~ 60% rated output power is the best way to work. 3.Prohibit frequent shutdown and open UPS power supply. General requirements in the closed UPS power supply, wait at least 6 seconds to open the power supply of UPS, otherwise, UPS power may “boot failure”, that is the state without city power output and the  inverter  output. 4.When using UPS power supply, be sure to comply w

Sine wave (or pure sine wave) , the waveform is the same to which output by generator or power grid, and even more perfect than the power grid. But sine wave modulation is not a simple matter, need the complicated control circuit; the cost is bound to rise. Therefore, sine wave UPS generally only in the units which capacity is more than 5KVA, or online units or part of the online interactive units, or the back-up units which capacity is large. Sine wave has the most efficient conversion to the power frequency transformer, can load all equipment on the market. But because of the cost, there are also many uses such as: modified sine wave sine and square wave, which is not a sine curve, but many small segments, using artificial methods make them like about a sine curve, which is modified sine wave sine, although it is better than square wave, but still not as good as the sine wave. Square wave is more easy to make, but because the square wave from the highest point suddenly fell to t

The  telecom power inverter  is a kind of device which can make a constant current in the circuit. The  telecom inverter  has positive and negative electrodes, the potential of the positive electrode is high, and the potential of the negative electrode is low; When the two electrodes and the circuit connected, telecom inverter can maintain a constant potential difference between two electrodes, thereby forming the anode to cathode by constant current in the external circuit. The application range of telecom inverter:  telecom station solar hybrid system  for large power plant, hydroelectric power plant, EHV substation, unattended substation as control, signal, protection and automatic reclosing operation, emergency lighting, DC, closing all DC operating mechanism, the two loop instrument, AC DC power supply control automation the uninterruptible power supply device and electric device. Telecom inverter working principle: telecom inverter consists of charging panel, power distribut

If UPS redundancy above two  UPS modules , the availability of UPS up to 99.999%, MTBF (Mean Time Between Failure) up to more than 15 million hours. Minimum downtime. If the number of faulty UPS modules is less than or equal to the number of redundant UPS modules, the UPS module can be replaced online without affecting the operation of other modules; If the number of faulty UPS modules is greater than the number of redundant UPS modules, due to the use of replacement UPS module maintenance, so downtime will not exceed 5 minutes.

On the problem of  hybrid solar inverter  efficiency, designers have always been committed to improving the efficiency of the  solar inverter . But which areas to start, so as to improve the efficiency of the inverter? For the inverter with transformer, the main DC filter main circuit (or DC filter circuit), IGBT (or other inverter module), reactor, transformer, AC filter (or homemade filter circuit and wire). So in order to improve the conversion efficiency of the inverter, we can start from these aspects. For example: 1. IGBT , we can reduce the IGBT loss, reduce the switching frequency of the IGBT, but also cannot be reduced without limit, because when reducing the switching frequency, the waveform of the  pure sine wave solar inverter  will be worsen, the power quality will be reduced, and will increase the noise of the machine, so can only be appropriate to reduce the switching frequency of IGBT. 2.The loss of the transformer. While the transformer losses only the copper lo

Telecom inverter  is a kind of device which alternate 220V power frequency current into the voltage regulator output DC voltage, need to go through transformer, rectifier, filter, voltage regulator four links to complete. Each link has its role, the following is a small series of its summary. 1.The rectifier filter circuit: rectifier circuit to AC voltage UI is converted into DC voltage ripple, ripple through the filter circuit to filter components and large DC voltage U1 rectifier and filter circuit, the output ripple is less commonly used full wave rectifier filter, bridge rectifier filter etc.. 2.Power transformer: step-down transformer, 220V AC voltage converter with AC voltage to the power grid, and to the rectifier circuit, transformer secondary voltage of the transformer is determined by the secondary voltage. 3.Voltage regulator circuit: the function of the voltage regulator circuit is to make the output of the DC voltage stability, does not change with the AC power grid vol

Energy saving and environmental protection is the focus of common concern, the photovoltaic industry from Europe, Australia, and now China has become a hot industry, China solar hybrid inverter manufacturers in just a few years spring up like mushrooms, but how to choose the solar hybrid inverter still have a certain standard. The solar hybrid inverter is a key component of the solar power system, so it has higher requirements on the inverter, the inverter should pay attention to in the selection of the technical specifications to meet the system design requirements. General focus on the following several technical indicators. 1.Power According to the general requirements of the system to configure the solar hybrid inverter which in corresponding section of the power, the selected inverter should be fit to the maximum power and solar array, selecting the hybrid solar inverter which rated output power and input power are similar can save costs for you. 2.Key technical index (1

SOROTEC  Foreign Trade Department hold a party last night to celebrate our colleagues came back from the business trip,and also welcome the arrival of the new colleague. We spent a happy night together!Team together,tomorrow will be better!

It is a sunshine and beautiful day. SOROTEC held a garden party together for relaxing , and strengthen our team spirit, also to enrich our leisure time on last Saturday, all staffs and some employees with their family together joined this activity, the game include playing the balloon,playing the bowling,playing the dart, clipping marbles and throwing the beanbag.The most exciting game is tug-of-war at the beginning. Our department only have six male,our competit or is the engineering department.We had three rounds of the games,our department won the first round,it seems that we have the great opportunity to win the competition.Against all expectations,our competitor won 2-1 to end the competition.Regardless the results,the game enhanced the cohesion of our department.After this garden party,we get more united,and believe we can create the brilliancy together!

To understand the need for the use of  UPS monitoring system , it is necessary to understand why the implementation of the UPS monitoring. The reason to monitor and manage of UPS, in fact, is determined by the limitations of the traditional UPS system itself. 1.The failure rate of single  UPS  is high, and often affect the support system of the normal operation of the system. Traditional single UPS without alternate lines or emergency plan, all of the power supply lines are single line, once the problem occurs, the power supply disruption is inevitable. Once this situation occurs and further spread, if there is no timely response to the corresponding measures, it is likely to cause irreversible loss. 2.Poor scalability. Traditional UPS configuration is fixed, and can not be upgraded, such as the case of information systems upgrade and led to the requirement to improve the power supply capacity, the only way to solve the problem is to buy a new UPS. Then, UPS power supply system it

UPS backup time is generally a problem concerned by customer in the purchase process. Usually most people prefer to choose the  UPS  which power backup the longer the better, in fact, this is not correct. We must firstly clear that the seller will usually have standard type UPS and long-acting UPS. Standard type UPS with built-in battery, after a power interruption can supply power to the load equipment in general for a few minutes to tens of minutes, of course, the length of time depends on the load. Long acting UPS can not only meet the power requirement of load, but also meet the requirements of customers and work types and so on, so the long-term UPS is usually equipped with an external battery pack. If the client is not particularly strict to the work condition of the load, and the power of the load is not particularly large, usually with standard type UPS would be enough. Because the choice of long backup time UPS is bound to increase the number of battery groups and thus in

The  online UPS  is kept the inverter in a working state, it starts by an external AC into DC, then through high quality  inverter  to convert DC to high quality sine wave AC output to the load. The main function of the online UPS in the power supply situation is the voltage stabilizing and preventing the electric wave interference; when the power is cut off, the standby DC power supply (battery pack) is used to supply power to the inverter. Because the inverter has been working, so there is no switching time problem, it is suitable for the power supply which has strict requirements. Online interactive UPS  : this is a kind of intelligent UPS, refers to when the input voltage of the inverter is normal, UPS is working in reverse, for charging the battery; when city power anomaly, the inverter immediately turn to inverter working state, the battery power is converted to AC output, so the online interactive UPS also has the conversion time. Originally, online interaction is the Unite

Solar MPPT charge controller is divided into ordinary solar controller, PWM solar controller and MPPT solar controller. Ordinary solar controller use the first generation technology, the working principle is directly to the output of solar panels to hang the battery port, when the battery is disconnected after sufficient reason, because the internal resistance of battery, it is difficult to charge batteries and solar panels is not fully utilized to MPPT tracking efficiency is only 70 ~ 76%, has been out of the market, basically very few people use. PWM solar controller using second generation technology, is the most popoluar type on the market , work is the use of PWM control, compared with the ordinary solar controller, has a lot of progress, can solve the problem of MPPT battery charging dissatisfaction, tracking efficiency is 75 ~ 80%, but the solar panels are not fully utilized. Solar MPPT charge controller uses the third generation technology, the most high-end solar contr

The island effect: refers to the power outages due to failure or maintenance of the part of the grid, power lines power supplied by grid connected power generation device, and constitute a self powered islanding phenomenon with the surrounding load. GB/T19964-2012 standard require power station with anti islanding protection equipment, usually the inverter adopts active + passive double anti islanding protection, to protect the inverter in any case can be reliably disconnected from the grid connection. Active protection is usually used to inject small interfering signal to the power grid, by detecting the feedback signal to determine whether the loss of electricity, while the passive protection usually uses the detection output voltage, frequency and phase to determine the occurrence state of the island. Series inverter : the AC side is directly connected in parallel, and the active protection can not be applied in the multi machine parallel system because of the active protection,

The main differences between the  industrial UPS  and  high frequency UPS  are embodied in the rectifier and transformer. Industrial UPS rectifier uses SCR device, the voltage stress is small, the current stress is big, the high frequency UPS mainly uses the IGBT device, the current stress is small, the voltage stress is big. SCR and IGBT are currently completed devices, as long as the application properly, there will be no difference in the reliability. In fact, the  inverter  part of industrial UPS is also use of IGBT, and there is no reduction in the reliability of  industrial UPS power supply , and there is no evidence to prove that the inverter is the weak link in the industrial UPS. From the topological aspect, industrial UPS with the phase controlled rectifier + full bridge inverter, high frequency UPS generally with rectifier + half bridge inverter. These topologies are very popular in the electronics technology, and there is no more reliable question, its reliability depends o

SOROTEC will attend the 2017 Solar Middle East Exhibition in Dubai in Feb.14-16th. We will exhibit our newest UPS & Solar Inverter products .Welcome to visit us at Booth Z2.B30! Exhibition Name: Solar Middle East Exhibition (2017) Exhibition Date: Feb.14-16,2017 The Booth No.: Hall Z2-B30 For more information,please contact us by:ups@soroups.com

Solar panels: This is the most central part of the  outdoor solar power system , its main role is to convert the solar energy into electric energy, so as to promote the work of the load. Solar cells are divided into silicon solar cells, polycrystalline silicon solar cells, amorphous silicon solar cells. Because the single crystal silicon cell is rugged, long life (generally up to 25 years), high photoelectric conversion efficiency than the other two types, causing it to become the most commonly used battery. Solar charging controller: its main task is to control the state of the whole system, while protect the battery from over charge, over discharge. At a particularly low temperature, it also has the function of temperature compensation. Solar battery deep circulation: it is mainly stored transformed power by solar panels, generally for VRLAB, while low temperature area requires the use of solar colloid battery, can be used repeatedly. Inverter: in the whole monitoring system.

Generally, the online UPS system can be divided into three main application areas. 1.information technology Commercial UPS  has been closely integrated with information technology, the bidding specifications of UPS equipment for information technology do not need special technical requirements. Telecommunications, banking, insurance companies and large enterprise data centers are typical examples of commercial UPS applications. In these applications, the interruption of the AC power supply may result in the interruption of data processing and telecommunications transmission, but usually does not cause direct damage to people or property. 2.Critical program or process control For decades, the design and application of  industrial UPS  system to the key program or process control applications has accumulated rich experience. In the application areas, the load side of the AC power supply interruption or instability, may cause dangerous chemical instability failure, or cause huge dama

The advantages of string inverter 1.Modular design, its advantage is not affected by the difference between modules, effects of shade, while reducing the best working point of photovoltaic battery and  solar system inverter  components do not match the situation, increase the maximum generating capacity. 2.In the rainy day, foggy area, can generate power for a long time. 3.String inverter with small volume and light weight, convenient handling and installation, do not need specialized tools and equipment, also do not need a special distribution room, can simplify the construction, reduce the area, DC line connection does not need DC bus box and DC power distribution cabinet. 4.Low power consumption, low impact of failure, convenient replacement and maintenance. 5.Multi path MPPT tracking, reduce the impact of the block and the direction, and when a fault occurs, does not affect the power generation, high reliability. Disadvantages of string inverter 1.More electronic component

Excellent electrical performance Low input harmonic current: <5% Output voltage high precision: <2% Overload capacity: 110 ~ 130% of the load can be overloaded for 10 minutes, 130 ~ 150% of the load can be overloaded for 1 minutes Charging current: 4.5A (each module) Support frequency conversion mode 50Hz input, 60Hz output or 60Hz input, 50Hz output Digital control High frequency UPS  adopts the most advanced DSP as the central controller, its powerful computing capabilities can realize the traditional function in most of the UPS now by software, not only greatly improve the accuracy and reliability, and easy to upgrade and maintenance. Intelligent charging Modular high frequency machine adopts advanced three phase charging method: The first phase of large current is constant current charging, fast recharge about 90% of the electricity; Second phase is pulse charging, can fully charge the battery; Third phase is the constant pressure to maintain, to ensure tha

Advantages of the  solar power system 1.Sunshine everywhere, not subject to geographical restrictions. 2.Safe and reliable. 3.No noise, no pollution. 4.Do not consume resources. 5.No need to set up long distance transmission line. 6.The installation is simple and convenient, and the construction period is short. 7.Make financing easier. 8.Easy to implement step by step. Disadvantages of the solar power system 1.Restricted by time period, geographical position and weather condition. 2.Light conversion efficiency is low. 3.High cost.

1.The extension of  modular Uninterruptible Power Supply  is better Tower type UPS need to buy a new expansion machine, the machine should be installed in place of the system in other UPS to bypass the new machine access system, the whole procedure is not only high investment, long time installation, existing power interruption risk load power down, when incorporated into the new machine because the entire system is in the bypass state. The modular UPS as long as the initial planning of the distribution system, you can increase the module to match the load of the upgrade, and in the expansion process to protect the original load of uninterrupted power supply. 2. Modular type UPS  is easy to transport and install Tower type UPS needs to install and transport as a whole, large single UPS will be more difficult. Such as the capacity of 800kVA UPS  weight is about 1500kg, the volume of more than 3 cubic metre, the tower type UPS will be lack of transport channel, transportation difficul

Commercial UPS  load is mostly the IT equipment need for AC power, so the product type for the typical AC output UPS, including backup type UPS,  online interactive UPS  and dual transformation online UPS, there are applications. Communication power supply (high frequency switching rectifier), which is widely used in telecommunication field, can be understood as a commercial UPS. Industrial UPS  product concept is more generalized, including both the AC output UPS and the DC output UPS, and even a variety of combination of product types. In different industrial areas, the proportion of AC UPS and DC UPS is not the same. Even the UPS AC, industrial UPS technology is also mostly traditional silicon controlled rectifier +IGBT inverter technology structure. This traditional dual transform online UPS high reliability is widely recognized by industrial customers.

Oct.15-19, 2016,  Sorotec  successful attended the 120th Canton Fair in Guangzhou, China. As a professional power solution expert, we presented many of our newest products on the booth, such as:  48VDC Solar Power System for outdoor communications base station, On – grid Solar Inverter with energy storage, Multi-function off -grid Solar Inverter, Solar Power Inverter System with battery and High Frequency Online UPS  on the exhibition. There are a large number of professional visitors came to visit SOROTEC’ booth. They showed a keen interested in SOROTEC ‘s new products and had a deep communication with our technicians and sales person. After the discussion, we know more about customer’s needs. During the show, many customers have a deeper understanding about SOROTEC’S products and show a stronger desire for cooperation. Cheers! Thanks for all clients visiting our booth and sharing the products with us and very grateful to you for supporting SOROTEC. In the future, SOROTEC w

For the  solar power generation system  users,the low cost, high reliability and long service life is the requirement of the  solar inverter . The requirements for the inverter are usually: 1.With a reasonable circuit structure, strict screening of components: have input DC polarity reverse connect, AC output short circuit, overheat overload and so on protection function. 2.Has a wide range of DC input voltage. Because the terminal voltage of the photovoltaic array varies with the load and the intensity of the sunlight, the inverter must be able to work in a wide range of DC input voltage adaptation range and ensure the stability of the AC output voltage. 3.As far as possible to reduce the use of intermediate (such as batteries, etc.) in order to save costs and improve efficiency.

Low voltage DC power supply for safety 1.Low voltage DC power supply LED lighting safe and reliable. 2.Low voltage direct current low  home power inverter  drive home appliances, more safe. Environmental protection and save electricity 1.One time investment, long service life. 2.More electricity consumption but save with inexhaustible solar energy. 3.Idle batteries can be recycled. Anti-theft function The home  solar hybrid system  has automatic light control function, automatic light in dark. If you use a timer or a controller, can be set on random time simulation in the house during the day, can automatically play music. Low voltage DC power supply LED lamp is lit or extinguished, or random light so that thieves can not judge whether there is someone in the house. Even if no one is relatively safe, it can avoid the phenomenon of people moving into the lives of people. Keep the house clean 1.Low voltage direct current power supply driving small power inverter drive

Inverter  can not boot 1.The battery voltage is too low or the battery is damaged, to recharge or replace the battery. 2.The battery is not connected with the wire of the  pure sine power inverter , please reconnect. 3.The positive and negative pole of the battery and the inverter is reversed, which leads to the fuse, replacing the fuse. No output 1.Battery voltage is too low, recharge or replace the battery, check whether the wire connection is good. 2.Input voltage is too high, according to the rated input voltage of the  pure sinewave inverter  to adjust the appropriate input voltage. 3.Load power is greater than the nominal power of the inverter, use the inverter which power is less than the nominal power, or replace the inverter which nominal power is greater. 4.Inverter over temperature protection, the inverter is placed in a ventilated place to cool down for 15 minutes. 5.When using a small power consumption, the inverter fails to start, and the peak power of the inverter i

Improving the conversion efficiency of the solar inverter is the biggest problem in the solar photovoltaic power generation. Since the output volt ampere characteristic curve of photovoltaic array is nonlinear, and has a close relationship with the solar radiation intensity, environmental temperature, rain, fog and other weather conditions, with the different sunlight intensity and ambient temperature, its voltage is changed, the output power also produced very big change, so the solar cell is a unstable power supply. In order to output as much power as possible under the same conditions of sunlight and temperature, improving the efficiency of the system, the MPPT of a solar cell array is proposed. The use of MPPT in the system can improve the conversion efficiency of the solar inverter system, but also to play the greatest potential in the light output power of photovoltaic array for any sunlight intensity, make full use of solar power inverter output. SSP3115C 1-12KVA Low Frequenc

Solar panels inverter systems  control scheme is: photovoltaic battery converse solar energy into electrical energy, and the series parallel tuned to DC voltage which meet the SPWM inverter, through inverter and filter inductor formed and grid voltage with the same frequency and phase of sinusoidal current, the realize the grid inverter using SPWM (sine pulse width modulation) inverter technology. According to the periodic condition of power system, the following 3 conditions should be satisfied when the SPWM inverter circuit is connected to the grid: 1.In the renewable energy feedback system, the output voltage of the inverter is close to that of the city power, and the pressure difference should be less than 10%. 2.Inverter output frequency close to the frequency of the city power, the general frequency difference is not more than 0.4Hz. 3.Inverter output current and the city electric voltage phase is same, usually this phase difference should not exceed 10 degrees. PV grid connected