博文

目前显示的是 十二月, 2016的博文

The scientific use of UPS power supply

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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

Accurate understanding of UPS power output sine wave or square wave

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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

Multi aspect analysis of telecom inverter

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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

The high system availability of high frequency UPS

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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.

Three suggestions to help you improve the efficiency of the inverter

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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

The working principle of telecom inverter

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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

Purchase elements of hybrid solar inverter

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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

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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!

SOROTEC held a garden party together for relaxing

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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!

The necessity of using UPS power supply monitoring system

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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