SOROTEC won the bid for 2017-2018 Beijing Unicom project construction equipment and materials centralized purchasing project (embedded switching power supply system (including lithium battery) and integrated UPS power supply system (online)).
SOROTEC won the unanimous approval of the expert group in the bidding process, reasonable price, high quality products, perfect service system is the reason, especially in recent years, our sales and service to get the praise of many customers, brand marketing also made a good preparation for this bid.
The winning bid is of great significance for SOROTEC. On the one hand, it is highly affirmative of SOROTEC products, and it is also the trust of our brand. In the long-term application, we rely on the operating mode of advanced technical strength, safety, green innovative product concept, perfect service system, and major project ability, win the majority of user acceptance, in the rapid development of telecom technology background, will continue to strengthen cooperation with major operators, to consolidate and improve the SOROTEC advantage in the telecom industry on the market, and better service Chinese telecom industry.
SOROTEC is a state-level high-tech enterprise specialized in the development and production of electronics and new energy products. Through years of accumulation and development, we have become one of the largest and most large-scale high-tech enterprises in the domestic power industry.
Inductors are generally composed of skeleton, winding, magnetic core, shield, package material, etc.. Skeleton generally refers to the bracket of winding coil. The enameled wire is wrapped around the skeleton, and then the core, copper core, iron core and so on are loaded into the cavity of the skeleton to increase its inductance. Winding refers to a set of coils with prescribed functions, and the windings are divided into single layer and multi layer. The core materials are silicon steel sheet, permalloy, ferrite, amorphous, metal powder core and so on. In a solar inverter, there are usually 4 kinds of inductors, including DC common mode inductance, boost inductor, filter inductor, and AC common mode inductor.
The common mode inductance mainly plays the role of EMI filter. On the one hand, it should filter the interference of external common mode electromagnetic to the inverter, on the other hand, restrain the electromagnetic interference of the inverter itself, so as to avoid the normal operation of other equipment in the power grid and the same electromagnetic environment.
The PV module is a DC source, and it does not produce electromagnetic interference. Some inverter manufacturers remove the DC EMI common mode inductance in order to reduce the cost. In fact, since the inverter switching speed is very high, will produce large common mode interference current, if there is no EMI DC common mode inductance, the interference current signal is transmitted to the DC cable and components, then the components will be like an antenna producing electromagnetic interference, impact signals of solar system surrounding.
In order to improve the power generation capacity, the string inverter is generally two stage structure, the input voltage range is wide, single-phase is 70-550V, three-phase is 200-1000V. The first is a boost, to configure the boost inductor, the second is to configure the inverter circuit, filter inductor, boost inductor and filter inductor is power inductors, from the current perspective, power inductor ripple in the whole operating period of current is relatively large and the working temperature is high, thus the DC bias characteristics of inductive power requirements high (especially at high temperature), high temperature Bs power inductors corresponding ferrite materials (saturation flux density) is very necessary; on the other hand, from the perspective of power loss, loss of inductance may account for the total loss of the solar inverter system 20~40%, is necessary to reduce the power loss of inductance.
SOROTEC REVO Series Wall Mounted Integrated Solar Hybrid Grid Tie Inverter With Built-in MPPT Solar Controller
1.Touch screen display. 2.Output power factor PF=1.0 3.On grid with energy storage. 4.Energy generated record, load record, history information and fault record. 5.Language and time setting. 6.Structure with dust filter. 7.AC charging and AC output time setting. 8.Charging voltage and charging current timing. 9.External wi-fi device optional. 10.Parallel operation with up to only available for. 11.Smart battery charger design.
In the increasingly fierce competition in the telecom industry nowadays, the telecom operators pay more attention to the rapid development of the business and the quality of the entire network. As the heart of the whole network, the network energy system is an important part. Operators need to have good cost performance, adapt to different situations, reliable and stable telecom power supply solution, so as to effectively solve the bottleneck of large-scale telecom construction and development, implement national energy conservation and emission reduction policies, and realize the high availability of the network. Under such circumstances, the establishment of a complete “network, energy integration” of the telecom power supply room, is the general trend.
Requirements of telecom network construction for power system *The rapid construction, modular design; *Stable and reliable; *Green energy conservation, in line with the national energy saving policy; *Coverage in all directions.
SOROTEC telecom power systems can meet the above 4 core requirements effectively. Compared with the traditional base station, the distributed base station has obvious changes in physical structure, power supply mode, engineering maintenance and protection, and the corresponding power support system should also adapt to this change.
*More power saving. The wireless side topology of the distributed base station becomes 1:N from the baseband and RF 1:1 relationship, accordingly, the power supply node is also changed from less to more, from a set of transmission base stations to multiple sets of power supply system.
*The physical structure of telecom base station has changed from traditional cabinet type equipment into modular, embedded, wall mounted and other forms, and the power supply scheme tends to be diversified.
*Centralized power supply becomes decentralized power supply. The wireless device connection changed from the plurality of antenna and antenna coupling of the BTS group into a simple transmission line and power line and antenna line, power supply scheme changed from the centralized power supply mode into the traditional distributed power supply.
*The change of engineering maintenance interface. The distributed power supply extends the power engineering maintenance interface to three segments, the BBU power supply section, the far distance power supply section between BBU and RRU, and the RRU power supply section.
*Lightning protection difficulty increases. The distributed base station has DC pull and DC RRU side power supply, which increases the pressure of DC lightning protection and remote AC lightning protection.
*Anti-theft difficulty increased. The increase of power line power supply and outdoor equipment will increase the difficulty of anti-theft.
SOROTEC HW9110E 1-10KVA High Frequency Outdoor Online Hanging UPS (outdoor ups systems,ups outdoor)
1.SOROTEC Outdoor Intelligent High Frequency Online UPS provide continuous pure sine wave AC power supply for
outside communications / network equipment.
2.Double-conversion online design, high temperature resistant, anti-cold, sealing level for IP55; With the wide range of input voltage and frequency of input window (- 45% +35% rated voltage and ± 10% rated frequency), in many remote areas of China after a severe test of the grid.
This outdoor UPS system is commonly used in the corner of the city, remote roads, mountains, bad environment, such as high temperature (+50 °C) / low temperature (-40 °C), severe dust, moisture, rain, mist erosion, very poor power quality (voltage longterm higher than 260V or less than 160V, frequency abnormal change) in the area.
The traditional typical mobile base station is basically built outside, and the power supply of the base station is placed side by side with the cabinet type main equipment such as BTS, cabinet type BBU, transmission and so on. The cabinet height is consistent with the main equipment, basically 1.6m high; The upper part of power cabinet is DC power distribution and outlet part, the lower part is AC incoming line and lightning protection power distribution part, and the middle part is rectifier module and monitoring module; There is no room in the cabinet for battery and other equipment.
With the development of the network, the outdoor integrated base station power supply develops rapidly. The outdoor UPS has obvious changes in the cabinet structure, divided into two storages, the upper is the power storage, the rest 2/3 is the battery storage. The original AC, lightning protection power distribution part, the rectifier module and the monitoring module in the middle of the cabinet are concentrated in the power storage.
In rural areas, due to fewer people and less business, most of them are covered by micro base stations; In densely populated urban areas, the rent is high, the choice of the computer room is difficult, and the capacity of the base station is expanded by the way of outdoor base station. Choosing outdoor UPS as the power solution of outdoor base station.
SOROTEC HW9110E Routine 1-10KVA High Frequency Online Outdoor UPS (outdoor rated UPS,outdoor AC UPS)
HW9110E series telecom marginal network outdoor AC UPS is special for wireless communication system of outdoor micro cellular base station and design of a high-performance integrated outdoor online uninterrupted power supply system, has the very high technology advancement and practicability.
SOROTEC Outdoor Intelligent High Frequency Online UPS provide continuous pure sine wave AC power supply for outside communications / network equipment . Double-conversion online design, high temperature resistant, anti-cold, sealing level for IP55; With the wide range of input voltage and frequency of input window (-45% +35% rated voltage and ± 10% rated frequency), in many remote areas of China after a severe test of the grid.
This UPS is commonly used in the corner of the city, remote roads, mountains, bad environment, such as high temperature (+50 °C) / low temperature (-40 °C), severe dust, moisture, rain, mist erosion, very poor power quality (voltage longterm higher than 260V or less than 160V, frequency abnormal change) in the area.
Solar power generation process is simple, no mechanical rotating parts, do not consume fuel, do not emit any substance including greenhouse gas, no noise, no pollution; Solar energy resources are widely distributed and inexhaustible. Therefore, compared with wind power, biomass power generation nuclear power generation and other new technology, solar power is a most ideal feature with the sustainable development of renewable energy power generation technology.
Installing distributed photovoltaic power stations to provide for the parents can reduce the economic pressure and contribute to environmental protection. For local governments, the promotion of distributed photovoltaic power generation in line with national development of new energy development direction, but also solve the pension problem of rural elderly.
Conventional energy sources are limited both in the world and in china. Chinese disposable energy reserves are far lower than the world’s average, only about 10% of the world’s total reserves. Solar energy is inexhaustible inexhaustible renewable energy, clean, safe, fully aware of the relatively extensive, really long life and free maintenance, resource adequacy and potential economic advantages, in the long-term energy strategy has the important position.
1.Built-in MPPT solar controller 2.Pure sine wave output 3.Low frequency design. 4.The charging current is big up to 85 Amp 5.Output power factor:s 0.9-1 6.Automatically transfer between battery and line modes 7.Microprocessor control guarantees high reliability 8.Remote control function 9.Four-steps intelligent charging control to recharging time 10.Bypass and bypass voltage regulation function 11.With AVR function (optional) 12.Mains/solar output priority level for the customer to choose . 13.Mains/solar/ mains & solar charging three mode of priorities for the customer to choose . 14.Battery type can choose from 0-9
