"Didn't you ask me to help you purchase a UPS uninterruptible power supply in the afternoon?" Qing Wang noticed that Huang Shi had begun to listen to him seriously, so he thought about it and started from the beginning again.

"Yeah, what's wrong?" Huang Shi wanted to buy a few UPS for temporary use before installing the diesel generators and wind turbines. His initial idea was to charge them at the shipyard and take them to Dongluo Island to pawn.

Output power is used.

"Then the working environment you require only needs a backup type." Because the advantages of the backup UPS power supply are high operating efficiency, low noise, and relatively cheap price, it is mainly suitable for situations where the mains power does not fluctuate greatly.

The power supply quality requirements are not high, so based on the requirements mentioned by Huang Shi, I would recommend it first.

"Yes, there is nothing wrong. Is there any problem?" Huang Shi was also engaged in technical work, so he also had some understanding of the working principle of UPS. UPS is divided into three categories: backup type, online type and online interactive type.

.

Among them, the first type is the most commonly used by people in their work and life, which is the backup UPS. It has the most basic and important functions of UPS such as automatic voltage stabilization and power-off protection. Although it generally has a conversion time of about 10ms,

Due to its simple structure, low price and high reliability, it is widely used in microcomputers, peripherals, POS machines and other fields.

Backup UPS power supply is divided into two types: backup sine wave output UPS power supply and backup square wave output UPS power supply.

Among them, the backup sine wave output UPS power supply can achieve a single output of 0.25KW~2KW. When the mains power changes between 170V~264V, it provides the user with mains power processed by the voltage regulator; when the mains power exceeds the range of 170V~264V

Only when the UPS provides high-quality sine wave power.

Another kind of backup square wave output UPS power supply is different from the backup sine wave output UPS power supply in that it only provides users with 50Hz square wave power supply.

The second type of online UPS has a more complex structure, but has perfect performance and can solve all power supply problems, such as the four-way PS series. Its notable feature is that it can continuously output pure sine wave AC power without interruption, and can solve peaks, surges,

All power supply problems such as frequency drift; due to the large investment required, it is usually used in environments with demanding power requirements such as critical equipment and network centers.

The last type of online interactive UPS, compared with the backup type, the online interactive type has a filtering function, strong ability to resist mains interference, the conversion time is less than 4ms, and the inverter output is an analog sine wave, so it can be equipped with servers, routers and other networks

equipment, or used in areas with harsh power environments.

The electrical equipment on Dongluo Island is just a few computers, and even servers are not currently equipped. Of course, Huangshi will not be so luxurious as to use these uninterruptible power supplies to drive the rice cookers, refrigerators and the like in the kitchen.

, so you only need to use a few backup UPSs in rotation, and then bring the discharged UPS back to the shipyard for recharging.

"Tsk, of course there is a problem. The backup UPS can only support a few minutes at most. Generally, 1000VA can carry a 600W load. This kind of UPS costs about 400~500 yuan. A 500VA with a 300W load, this kind of UPS costs 100~200 yuan.

Around 1 yuan."

"Our current general desktop computer power is 200~300W, while the power of laptop computers is slightly smaller, around 150W."

"Yes, I know." Huang Shi nodded, indicating that he understood these things, but he didn't know what he wanted to say.

"But if you want 6 laptops to be able to be used for 12 hours after a power outage, then you can calculate for yourself how many VAs this will cost." At this point, Wang Wang almost pointed at Huang Shi's nose and scolded you.

Technically, why would you make such outrageous demands?

"Of course I'm not asking you to support one UPS for such a long time. I also wrote it on that list. You can also consider 3 to 4 UPS for me." Huang Shi wondered why Xiao Wang was so angry. He obviously

It was specifically noted on the list.

"Have you, have you written it?"

"Of course I have written it, otherwise you can just take out the list and we can look at it again." Huang Shi was a little helpless, but he did remember what he had written.

When Qian Wang took out the list, the two of them read along the list. When they saw the requirement for the UPS to be able to support 12 hours, they didn't find the one Huang Shi mentioned. Huang Shi saw that Qian Wang wanted to shout again, so he rushed to the front.

Said, "Xiao Dan, let's finish reading the content before talking."

Sure enough, in the last line at the bottom of this list, Huang Shi wrote that if one UPS cannot meet the above requirements, then it can be increased to 3 to 4 UPS to achieve this function.

"Damn, your request was written down so low, how could I notice it, and the handwriting is so sloppy." Qian Wang was a little unconvinced. He didn't know that Huangshi was afraid that Qian Wang would meet Huang Shi when he arrived in Zhuzhou because it was almost afternoon.

He wanted to disturb himself, so he took out a small notebook in the car and wrote down some things that needed to be sent to him for shopping.

"I'm sorry, I wrote it in the car. I wrote it wherever I thought, so you just have to read it." Huang Shi thought that although he had his own reasons, he was too impetuous to forget about this person and didn't even read it.

After that, I just yelled blindly.

"Okay, okay, let me take a closer look."

After Qian Wang read it carefully again, he said again, "Old Huang, don't blame me for talking too much."

"No, if you have any questions, just tell me."

"Then let me tell you, you have a lot of money and you have to burn it."

"Haha." Huang Shi laughed and did not respond to Qian Wang's words, because he knew what Qian Wang wanted to say, but the reality on the island was like this. The wind turbine did not know when it would be installed in place, and the diesel engine was fast.

It will take a few days for these to arrive. During the transition and future applications, those UPSs are destined not to be wasted and can always be used.

Sure enough, just as Huang Shi expected, he forgot that he didn't know about this situation. He was worried about his friends' concerns and thought about what his friends thought. He advised Huang Shi, "Old Huang, even if you can do this, it's too painful."

Alright."

Seeing that Huang Shi didn't say anything, he had no choice but to say, "Then you can only add battery packs. If one battery pack is not enough, add two batteries. If two batteries are not enough, add three batteries."

"Yeah." Huang Shi nodded, that's what he thought.

"According to what we just said, you need at least 6 to 8 battery packs to ensure that a laptop can be used for 4 hours." Qianwang continued, "So after calculating this, you will need to buy at least 6 computers.

40 batteries, and if it’s 12 hours, then you need 120 batteries.”

"Well, sure, no problem." Huang Shi nodded.

"Sigh." Danwang couldn't help but sigh when he saw that Huang Shi was still so calm after hearing this number. He really felt that the person sitting across from him was a rich man, "Actually, I've never seen someone do something like you."

After saying this, Huang Shi became interested and asked, "Who is he?"

"My company is a local tax company. They use 40 pieces of dry batteries to ensure that six computers can be used for more than four hours. However, this company is my grandpa's office."

The implication of the forgotten words made Huang Shi feel that he seemed to be despising himself. He almost slapped his chest and said, I am not short of money, but after thinking about it, I endured it. By saying this, doesn't it prove that I am a nouveau riche?

, forget it, I still don’t want to be angry anymore, so I replied, “By the way, then you can recommend the machine head.”

Because like the UPS mentioned just now, it is divided into two parts: the machine head and the battery. The battery is used as a backup energy source for the load when the normal power supply fails. Without the battery, there is no uninterruptible power supply. The machine head is the host part of the UPS.

It is a key device, including rectifier, inverter, charging and switching.

"Okay, let me think about it." Qing Wang saw that Huang Shi was determined to do this, so he had no choice but to let him go, so he was thinking about what brand would be suitable for the wealthy man opposite.

"I originally wanted to say that Santak's UPS power supply is better, with low price, good quality and good after-sales service. But if you are a rich person, then buy the Emerson or Easytech. Their quality is also better than Santak's.

It’s better and more durable, haha.”

"Okay, no problem. I'll just buy EasySite." Huang Shi vaguely remembers that most of these UPS brands are foreign brands, but they are usually produced domestically, such as EasySite and Santak. Only Emerson seems to be.

It doesn't have a factory in China, so it can be considered as supporting domestic products.

"Okay, but what about the other requirements?"

"Battery, what can you recommend?" Today's UPS generally uses fully sealed, maintenance-free lead-acid batteries as energy storage devices. The battery is an important part of the UPS, accounting for a large proportion of the value, and its quality is good.

Failure is directly related to the normal use of the UPS, so Huangshi naturally needs to carefully choose genuine batteries with guaranteed quality.

"The main battery brands include Yuasa, Panasonic, Hercules, Sunshine, Haizhi, etc. I recommend you use Panasonic."

"Panasonic?! Forget it, let's use sunshine." Huang Shi had no choice but to give up as soon as he heard Panasonic's name, because although he was not an angry young man, he also admired the god of management Konosuke Matsushita, and he also paid tribute to him back then.

Noriko Sakai, their advertiser, was also impressed, but now that China and Japan are in conflict, if I buy one less Japanese appliance, I will have thousands less funds for the resurgence of Japanese militarism, right?

"Okay, no problem, when do you want it?" Qiangwang didn't know why Huangshi chose Sunshine, but since he had already chosen it, he just helped him buy it.

"When? I want it tomorrow morning."
Chapter completed!