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Analysis of four working methods of UPS power supply

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UPS is a constant voltage and constant frequency uninterruptible power supply with the energy storage device and inverter as the main component. Its main function is to supply power to electronic equipment reliably and uninterruptedly through the UPS system. Depending on the usage, the UPS can be converted into four different modes of operation: normal operation, battery operation, bypass operation, and bypass maintenance. 1. Normal operation mode The power supply principle of the uninterruptible power system is that when the mains is normal, the machine will convert the alternating current of the mains into direct current, and then charge the battery for use when the power is interrupted; here I emphasize that the uninterruptible […]

Analysis of four working methods of UPS power supply 続きを読む "

mini-dc-ups

UPS の動作モードの切り替え中に電源供給にギャップが生じますか?

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Whether there is a power gap depends on the design of the UPS. The design of the power supply mode of UPS, due to cost, market, volume, weight, and other reasons, there are many forms, each form has different characteristics. Some use power frequency, some use high frequency, some are online, and some are backup. These forms are combined with power size and delay length to become colorful. Among these UPS power sources, some have conversion gaps such as 5 ms, 10 ms. For some, there is no conversion gap, that is, the conversion gap is 0 milliseconds. When purchasing a UPS, you should understand the performance characteristics of various models, and choose

UPS の動作モードの切り替え中に電源供給にギャップが生じますか? 続きを読む "

Beijing Winter Olympics, the city of double Olympics, closes: “Chinese-style romance” makes parting full of love

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Tonight, the five rings of starlight in 2008 and the main torch of “Big Snowflake” in 2022 complement each other. On the evening of February 20, the closing ceremony of the Beijing 2022 Winter Olympics was held at the National Stadium “Bird’s Nest”. The five rings of starlight in 2008 and the main torch of “Big Snowflake” in 2022 complement each other, and “ONE WORLD ONE FAMILY” is full of beautiful wishes and blooms gracefully. This night, “Chinese Romance” once again amazed the world. The opening ceremony Little Snowflake came to the closing ceremony. At the closing ceremony, snowflakes turned into lanterns in the hands of children, and each lantern carried the

Beijing Winter Olympics, the city of double Olympics, closes: “Chinese-style romance” makes parting full of love 続きを読む "

129 points! Qi Guangpu（齐广璞）wins the championship: China’s 7th gold, Four-time Winter Olympics athlete’s dream come true

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On February 16, Beijing time, in the men’s aerial skills final of freestyle skiing at the Winter Olympics, Qi Guangpu（齐广璞）withstood the pressure and won the gold medal with a score of 129 points. This is the seventh gold medal of the Chinese delegation, which is amazing! In this final, Jia Zongyang (贾宗洋) was upset, but Qi Guangpu（齐广璞）was very stable and did his best. He has a big heart. Qi Guangpu(齐广璞), a Chinese team player, made a difficult move of 5.0 for the first time in this Winter Olympics, and scored 129.00 points with his excellent performance, winning the gold medal! This is the second gold medal for the Chinese men’s aerial skills team after Han

129 points! Qi Guangpu（齐广璞）wins the championship: China’s 7th gold, Four-time Winter Olympics athlete’s dream come true 続きを読む "

India’s lithium battery market to reach 2.6 GW in 2021, 116 GW in 2030

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According to a new research report by JMK Research and the Institute of Energy Economics and Financial Analysis (IEEFA), India’s annual lithium-ion battery market will grow from 2.6 GWh in 2020-21 to 116 GWh in 2029-30, with electric vehicles (EV) accounts for 90% of the overall market. The report expects lithium-ion battery demand for automotive applications to increase from 2.3 GWh in FY 2020-21 to 104 GWh in FY 2029-30, supported by government policies, including rapid application and manufacturing of hybrid and electric vehicles (FAME), and state-level electric vehicle policies. Demand for lithium batteries in non-automotive applications is expected to increase from 0.3 GWh to 12 GWh, driven by telecom towers, data centers, grid-scale renewable energy (RE) integration,

India’s lithium battery market to reach 2.6 GW in 2021, 116 GW in 2030 続きを読む "

スピードスケート男子500メートルで高廷宇選手がオリンピック新記録で金メダルを獲得

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Refreshing the Olympic record of the event and winning the first gold of the men’s speed skating team at the Winter Olympics——Speed skating men’s 500m Gao Tingyu wins gold The moment he crossed the finish line, 24-year-old Gao Tingyu looked like a flash of lightning in the eyes of the audience. The distance of 500 meters took 34.32 seconds, a new Olympic record was born! In the cheers, Gao Tingyu continued to glide calmly. At this point, there are still 8 groups of players who did not play. The audience waited with bated breath. As the players completed the game, no one could surpass this score. Won! The passionate melody of “I Love

スピードスケート男子500メートルで高廷宇選手がオリンピック新記録で金メダルを獲得 続きを読む "

天才少女顧愛玲艾玲が2022年北京冬季オリンピックで3つ目の金メダルを獲得

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On February 8, 2022, in the freestyle ski jumping final, Gu Ailing Eileen won the championship with 188.25 points, winning the third gold medal for the Chinese delegation in this Winter Olympics, which is also her own first Winter Olympics will medal. Born in 2003, she began to try skiing at the age of 3. At the age of 9, he became the national skiing champion in the junior group. At the age of 11, she won the national under-13 slope obstacle course and the all-around runner-up. Since the age of 13, he began to participate in the adult competition. At the age of 14, Gu Ailing Eileen has won 9 national championships,

天才少女顧愛玲艾玲が2022年北京冬季オリンピックで3つ目の金メダルを獲得 続きを読む "

How can household distributed photovoltaic power plants increase power generation?

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More and more people are building distributed photovoltaic power stations for home use, but the same installed capacity can generate high or low electricity; so how can we effectively increase the power generation on our roof? First, let’s take a look at what factors affect solar power generation. 1. Lighting conditions: Home solar power stations use to generate electricity. The better the natural light resources, the greater the power generation; in areas with the same lighting conditions, after pre-measurement and design, the power station set at the optimal inclination angle has a higher power generation than no power station. After preliminary measurement and design, the power station installed with the optimal tilt angle is

How can household distributed photovoltaic power plants increase power generation? 続きを読む "

Which is better, polymer lithium battery or lithium battery？

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Customers often ask about the difference between lithium-ion batteries and lithium-polymer batteries, and which battery is more recommended. Lithium polymer batteries refer to all-solid-state or gel-to-electrolyte lithium-ion batteries. Aluminum-plastic composite films are generally used as packaging materials. Lithium battery generally refers to aluminum shell battery, the electrolyte is liquid, and the outer packaging material is aluminum shell. Lithium polymer batteries are safer than lithium batteries. Lithium polymer battery is an upgraded product of lithium ion battery. Compared with the popular lithium-ion battery, it has the advantages of large capacity, small size (thin), and safety (no explosion). However, because the replacement of the entire industry chain takes a certain amount of time, its cost

Which is better, polymer lithium battery or lithium battery？ 続きを読む "

BEV（バッテリー電気自動車）とは？

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A pure electric vehicle (Battery Electric Vehicle, BEV) refers to a vehicle powered by a fully charged battery to an electric motor and propelled by an electric motor, and the power of the battery is supplemented by an external power supply. Since no exhaust gas is emitted on the road, it will not pollute the air on the road. Principle The pure electric vehicle stores energy in the vehicle with the battery, which is equivalent to the fuel tank of the general car, provides the vehicle with electricity to the electric motor, and the electric motor converts the electric energy into kinetic energy to propel the vehicle. The structure is very simple.

BEV（バッテリー電気自動車）とは？ 続きを読む "

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