Determining the Right UPS Capacity for Your Data Center > 자유게시판

Properly sizing a UPS is essential to maintain uninterrupted operations and safeguard vital IT infrastructure from power disruptions

Your initial calculation must account for every piece of equipment drawing electricity from the grid

You must factor in servers, switches, routers, SAN

Refer to the nameplate ratings or manufacturer datasheets to gather accurate power consumption figures

If the ratings are in amps and volts, multiply them to get watts

For example, a device rated at 10 amps at 120 volts consumes 1200 watts

Always build in headroom to accommodate upcoming expansions

It's common practice to plan for at least 20 to 30 percent extra capacity to accommodate new equipment or increased power demands over the next few years

This prevents the need for a costly UPS replacement shortly after installation

Next, consider the power factor

Always check whether the spec is listed in VA or watts

The relationship between watts and va is determined by the power factor, which is often around 0.8 for typical IT equipment

Multiply kVA by the power factor to determine real power in kW

For example, a 10 kva UPS with a 0.8 power factor can support 8000 watts of real power

Never push your load beyond the kW threshold derived from VA × PF

Also factor in the desired runtime during a power outage

Extended runtime demands larger, more expensive battery arrays

Higher loads drain batteries faster, reducing available backup time

A higher load will drain the batteries faster

Consult official runtime graphs provided by the vendor

Efficiency matters too

Choose a UPS with high energy efficiency to reduce operational costs and heat output

Look for units with active PFC and Eco Mode for optimal energy savings

Inefficient units generate excess heat, forcing your HVAC to work harder

Plan for failover capacity to eliminate single points of failure

In mission critical environments, it's common to use a 2n or خرید یو پی اس n plus 1 redundancy model

Redundant systems ensure uninterrupted power even during hardware failure

For N+1, calculate your base load plus one full unit

Never finalize your UPS plan without expert input

They can help you account for local electrical codes, environmental conditions, and precise load characteristics

Correctly sized UPS systems eliminate risks of overload, extend equipment life, and guarantee continuous uptime