Please help me choose UPS How do I choose UPS?

Office: Two computers and one printer The printer is laser, and its instantaneous output is twice its own power, so it is normal to match it with a larger one, otherwise it will cause UPS overload That is, 1700*3+250+180=5530W

Generally with 10kVA or 8kVA. The second and third rooms are also calculated according to this method, which is about 700W (with 2kVA W (with 10kVA). If you have three rooms together:

5530+680+6680W (then yours use 20kva,), it is recommended that you use one UPS for three rooms together, economical.

Question three. UPS generally does not need maintenance, it can be turned on and off, which is very simple.

Problem 1: A Canon printer, 4 ordinary PCs, and a hub, these are about 1500W, of course it is not possible to use 1kva, if you want to use a single match, use 3kva (because the va value is not equal to W, they have a power factor of 3kva,) is OK. The second and third rooms are also calculated according to this method, which is about 700W (2kva).

If you have three rooms together: 1500 + 700 + 900 = 3100w (then yours use 6kva,), it is recommended that you use a UPS in three rooms together, which is economical and convenient.

Problem 2: The voltage stabilization effect of the backup type is not very good, and the 6kva type is the first type, and the first type can adapt to the input voltage of 120V-275V. So you should have no problem with 6kva.

Question 3: After the UPS is installed, the technician will tell you some simple operations, which are generally easy to understand. It is better to have an air conditioner in the room where UPS is installed, and it is not necessary to have a separate room. The noise will not be very loud.

Hope it helps!

Correction: Office: 2130W (with Shante 6KVA or APC 5KVA), these two brands focus on small and medium-sized UPS cost-effective, it is recommended that you choose.

Conference room: 680W (use 2kva, use 1kva feels smaller, and it is convenient to increase equipment in the future).

Technical Department: 2680w (you can use the same as the office).

In addition, each UPS is equipped with a battery. The specific amount of each unit is also determined according to the size of the UPS and the time of the back.

I'm also doing UPS, so I'll give you some of my experience and we'll talk to each other

1) In the early stage, run more system integrators and computer vendors. They use it relatively more.

2), after having experience, you can follow some projects by yourself, almost all hospitals, schools, ** and other units have used UPS, it depends on how you find it.

3) Be prepared to have no orders, unless your company is very famous in the local area, it is very normal to have no orders for a year and a half. I haven't been to the design institute. They are all directly looking for the owner's unit.

As long as the owner's unit approves of your things, no matter how they design them, they will not change anything else.

4) Large enterprises generally look for project managers or procurement, ** banks go directly to the computer room management personnel Sometimes he will tell you that it is time to find that person. ** Department, you have to know which company is contracting the project, that is, find the following contractor.

5) Large chain supermarkets have their own purchasing department, or logistics department, which is responsible for purchasing the required equipment, or it may be a unified order when planning, in which case the authority is mainly concentrated in the design department.

6), more run is more run company, another month ** may still not have any progress, business may still be zero. Be sure to run more, plan the next day's itinerary and approximate company the day before.

1.It has relatively high requirements for cargo transfer time and hopes that the transfer speed is stable.

2 Destination countries: Mainly Western Europe, North America, Southeast Asia.

**, universities, **, banks, hospitals, postal, railway, shipping, etc.

UPS as a power supply equipment, connected to a lot of important loads, therefore, its reliability is the most important, if the mains is normal, and due to the failure of UPS to power off the load, resulting in economic losses, it is really worth the loss, it is better to connect the load directly to the mains. The indicators to measure the reliability of UPS include work efficiency, output current peak coefficient, output current surge coefficient, overload capacity and annual mean time between failures. These indicators are the standard to measure the reliability of a UPS, and they should also be considered when buying UPS.

Users buy UPS to protect electrical equipment, and while focusing on the reliability of UPS, users should also pay attention to the adaptability of UPS to the power grid. The adaptability of UPS to the power grid includes input voltage range, input power factor, harmonic interference to the power grid, and frequency tracking ability. The more resilient a UPS is to the grid, the less restrictive it is on the load of its users.

Other factors to consider are: try to choose branded products, original products will have factory numbers, manuals and technical manuals, etc., and the noise can be felt during operation; Software support, if there is excellent software support and management, UPS is not just a simple power supply device, but a smart device with automatic detection, automatic alarm, automatic storage and other functions, of course, it depends on the specific needs of users; In cooperation with the specific application environment, for example, when selecting UPS for networking equipment, the network management ability and cross-platform management ability of power management software should be considered, and when purchasing UPS for telecommunication equipment, noise suppression ability and high reliability should be considered.

In short, when users choose UPS, they should clarify their own power supply requirements and characteristics, and comprehensively analyze and investigate the UPS of various brands.