Если вы потратили какое-то время на поиски резервного ИБП , то вы уже знаете, что когда дело доходит до источника бесперебойного питания, у вас есть неограниченное количество вариантов. Сужение их и выбор правильного источника питания ИБП для вашего приложения зависит от ряда различных факторов, включая типологию системы ИБП, нагрузочную способность ИБП и время работы ИБП , и это лишь некоторые из них.
Упростите выбор системы ИБП с помощью мощного инструмента выбора от EverExceed; EverExceed предлагает удобный инструмент выбора продуктов, в котором вы можете фильтровать системы ИБП по этим и многим другим характеристикам, а затем сравнивать варианты, соответствующие вашим критериям, рядом друг с другом. Это очень эффективный и экономящий время инструмент для выбора идеального источника резервного питания ИБП, соответствующего вашим конкретным требованиям.
Что такое ИБП?
В нашей статье под метким названием «Что такое ИБП?» вы можете найти подробное описание, в том числе варианты использования ИБП, в которых обсуждается, когда и зачем вам нужна система ИБП .. В статье объясняется, что источник бесперебойного питания обеспечивает мгновенное аварийное питание критически важных устройств, таких как серверы и другие электронные компоненты в компьютерных сетях, за счет энергии, которая обычно хранится в перезаряжаемой батарее. Питание от ИБП обеспечивает правильную работу этих систем даже при выходе из строя основного источника питания. В отличие от генераторов или других резервных источников питания, запуск которых может занять несколько секунд, система ИБП обеспечивает полное отсутствие перерыва в токе питания, отсюда и название источника бесперебойного питания. Резервная батарея ИБП несет критическую нагрузку до тех пор, пока резервные источники питания с более длительным сроком службы не смогут включиться и взять на себя работу.
Каковы различия между основными топологиями ИБП?
Одним из ключевых критериев поиска, который вы можете выбрать в окне выбора продуктов UPS, является тип продукта. Существует три различных типа типологии ИБП: онлайн с двойным преобразованием, линейно-интерактивный и автономный (также называемый резервным и резервным аккумулятором). В статье Какие существуют типы систем ИБП? мы подробно изучаем каждый. Но выбор обычно сводится к степени критичности и чувствительности защищаемого оборудования.
Generally, an online double-conversion UPS will deliver the greatest power protection by isolating the critical load from virtually all power disturbances or irregularities in the main supply. It is always online, conditioning incoming power as well as providing battery backup. A line-interactive UPS also provides power conditioning in addition to battery backup and can protect against most power problems, however, there is a 4-6 millisecond break in power when transferring to battery back-up. Finally, the offline UPS protects against most spikes and can ride out many shortages, but it does not maintain perfect power during minor sags and surges.
Should I choose a single-phase UPS or a three-phase UPS?
Single-phase AC power is commonly used for household and light commercial applications, such as lighting and small appliances. Smaller power users, such as schools, office buildings, or smaller edge applications, can choose a single-phase UPS with confidence. However, larger data centers and other commercial and industrial facilities with power-hungry equipment typically require a three-phase power system that can deliver more power with greater efficiency. The article Three-Phase Power: What It Is and the Benefits It Brings provides a detailed explanation.
What power rating do I need to ensure the right size UPS system?
Proper UPS sizing is critical to optimize operational efficiency. Choose a UPS system that is too big, and the unit will be inefficient. Choose one that’s too small, and it won’t be able to support your power load into the future. To determine what size UPS you need, first, determine your current power load and estimate your future power load based on anticipated growth and the addition of newer equipment with higher power requirements. You will then want to choose a UPS system with the capacity to meet your maximum current load with some room to grow. To do this, you need to consider two things: the power rating in volt-amperes (VA). And the power factor. A UPS system with a power factor of only 0.8 can provide only 80 percent of its rating. A UPS system with a “unity” (or 1.0) power factor will provide 100 percent of its rated capacity. You can specify load capacity from 350VA up to 20kVA using the UPS Product Selector.
What do I need to know about battery chemistry?
The UPS Selector tool allows you to specify different types of battery chemistry, such as lead-acid or lithium-ion. A lithium-ion battery is the most technologically advanced choice. Lithium-ion technology delivers a variety of benefits for UPS systems is a white paper with more information on this subject. However, more traditional batteries, such as VRLA, often have a smaller upfront price tag. You will want to consider operating temperatures, the total cost of ownership, life expectancy, and maintenance requirements to choose the right UPS batteries for your sensitive IT equipment and specific business requirements.
What about the form factor? Where will I mount the UPS?
UPS systems come in a wide variety of form factors and the UPS Product Selector lets you choose from seven different options, including UPS systems that are convertible and can be either rackmount or tower. Other options include mini-towers, floor mountable units, desktop systems, or wall mount UPS systems. Many times, the choice is determined by the available space in your data center environment. Do you have rack space to spare? Or would you rather use wall space and free up the rack for more servers and networking equipment? Some applications will require a UPS system that is too big to fit in the rack, in which case you will need to consider tower or freestanding form factors.
How do I calculate UPS runtime to ensure the right amount of UPS battery backup?
UPS runtime is the amount of time a UPS can supply battery power to the connected load. You can calculate runtime yourself by multiplying UPS battery capacity by UPS input voltage and then dividing the sum by the total supported load (in watts.) Or you can use Vertiv UPS Runtime Calculator to determine the battery runtime for a number of different Liebert UPS models. Simply enter the model and then drag the bar on the interactive graph to the appropriate load amount to see the UPS runtime in minutes. The UPS Selector Tool also allows you to specify your preferred battery runtime at both full load and half load and see only models that meet those criteria.
What else should I consider?
Many organizations are required to (or simply want to) select TAA compliant UPS systems that are manufactured or “substantially transformed” in the United States or other TAA compliant countries. Other organizations look for Energy Star-rated UPS systems to help further efficiency goals. The UPS Product Selector allows you to check one or both of these options to find a wide range of Liebert UPS systems that meet these requirements includingsingle-phase, three-phase, online double conversion, and line-interactive options.
Quickly Find the UPS system that checks all your boxes.
Clearly, there is no shortage of factors to consider when selecting a UPS for power backup. Once you know your specific requirements, the UPS Product Selector can dramatically simplify the work of finding a UPS system that meets your needs. If you need help defining your requirements or narrowing down your options, even more, give Vertiv a call and let our experts help you specify the ideal uninterruptable power supply for your application.
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