S&C’s PureWave UPS Systems provide an ideal solution for providing the high quality, uninterruptible power that data centers require. For Tier IV 2N systems, the S&C solution can achieve six 9's of availability for your mission critical facility, PureWave UPS Systems — available in medium-voltage ratings from 5 to 25 kV and low-voltage ratings from 208 to 690 volts — provides facility-wide back-up power for any specified length of time; 1 minute, 5 minutes, 15 minutes and beyond. PureWave UPS Systems feature maintenance-free batteries. Not only are these systems more cost-effective than distributed low-power UPSs, but they can also be installed outdoors. No valuable interior, air-conditioned floor space is required. PureWave UPS Systems provide additional advantages as well:
Higher-Efficiency Power Quality
The relatively low efficiency of dual-conversion on-line UPSs, operated at low utilization factors, creates low overall system efficiencies and high power consumption. And the additional power used for cooling these UPSs contributes to total power consumption. PureWave UPS Systems feature a fast-acting static switch design that offers higher efficiencies than conventional on-line UPSs. The field proven PureWave UDM is a patented detection system that allows the PureWave UPS to sense utility voltage deviations at the industry’s fastest rate while meeting the demanding IEC/EN 62040-3 Class 1 rating for “fast transfer” to battery power.
Other Critical Loads Must Be Addressed
The air conditioners and chillers required to maintain optimal temperature in the data center are now considered critical loads. Some process equipment and business services in the facility may be designated critical loads as well. Additional UPS capacity must be dedicated to protecting these loads. For conventional on-line UPSs, this means that additional interior space — a limited resource — must be dedicated to house both the equipment and their battery banks. But with PureWave UPS Systems, all the equipment — including the batteries — can be installed outdoors.
Reducing a data center operation's total cost of ownership — the TCO — is an increasingly important goal. New efficiency and energy reduction criteria mandated by the Leadership in Energy and Environment Design (LEED®) and other organizations are forcing changes to traditional data center design approaches in the interest of conservation, lower operating costs, and lower TCO. When selecting a medium voltage PureWave UPS, the copper conductor costs of distributing power are greatly reduced when compared to conventional low-voltage designs.
The procurement cost of the equipment is a relatively small part of the cost of owning and operating a data center. Some sources estimate TCO as being as much as four to five times the original equipment purchase cost, with the annual cost of electricity consumption fast approaching the cost of the equipment.
S&C also offers an array of medium-voltage switchgear products and services for data center electric power requirements.
The answer to your difficult-to-solve switching and protection problems through 38 kV, Vista Underground Distribution Switchgear features 600-ampere load-interrupter switches and resettable fault interrupters — all enclosed in a hermetically sealed, SF6-insulated tank for superior performance in the most challenging environments. Innovative features simplify operations, enhance safety, and minimize outage duration. Both manual and power-operated models are available for pad-mounted, vault, and subsurface applications. A wide variety of circuit configurations and options can be furnished too.
S&C Custom Metal-Enclosed Switchgear — incorporating interrupter switches and power fuses in rugged enclosures featuring welded construction — is tailored to meet your specific distribution system needs. Available in ratings of 4.16 kV, 13.8 kV, 25 kV, and 34.5 kV, S&C Custom Metal-Enclosed Switchgear is ideal for applications having unique requirements beyond the scope of S&C’s pre-engineered switchgear.