UninterruptiblePowerSupplySystems
Whole-facility protection at the point where the utility meets your plant. Sized in megawatts rather than kilovolt-amps, and rated to sit outdoors if the building has no room.
- LV range
- 50 kW – 4.8 MW
- MV range
- 2.25 – 22.5 MW
- MV voltage
- 5 – 25 kV
- Topology
- On-line double conversion
Rack-level UPS protects servers. This protects the process.
A distributed UPS estate protects IT load and leaves everything else exposed: chillers, pumps, air handling, process tooling, the loads that actually determine whether a facility keeps running. Centralized UPS moves the protection boundary upstream, to the service entrance, so a utility event is invisible to the whole site rather than to one row of cabinets.
We supply that protection at two scales. The low-voltage modular platform builds from 50 kW modules to 4.8 MW across paralleled cabinets, with the power, bypass and control modules all hot-swappable. The medium-voltage PureWave platform sits directly on a 5–25 kV bus and protects up to 22.5 MW without the losses and footprint of stepping down first.
Both are available outdoor-rated and containerized. On constrained sites that is often the deciding factor: the system arrives factory-tested, is craned into position and energized, with no building works in the critical path.
Why these systems hold up
True on-line double conversion
Full AC/DC–DC/AC conversion with dual-DSP digital control, so the load sees a regenerated waveform rather than a filtered version of whatever the utility delivered.
Hot-swappable modularity
Power, bypass and control modules can all be exchanged live. Mean time to repair drops to a module swap rather than a system outage, and capacity can be added as load grows.
Graceful thermal degradation
Fan speed tracks temperature to cut noise and extend life. If one fan fails the system holds 50% load; if two fail it holds 30%. It derates rather than dropping the load.
96% efficiency, 99% in ECO
Active power factor correction takes input power factor to 0.99 and on-line efficiency to 96%. Under good grid conditions, ECO mode reaches 99%. At megawatt scale that gap is a line item, not a rounding error.
Battery flexibility
Supports 30–46 cells and works with both lead-acid and lithium iron phosphate. Float charge voltage temperature compensation and charger sleep control extend battery service life.
Black start capability
The system can start directly from battery when mains is unavailable, and a configurable reset delay limits the impact on the grid or a standby generator during restart.
Built for harsh rooms
A three-proof paint immersion process protects the electronics for long-term operation in dusty, humid and corrosive environments, not only clean data halls.
Open monitoring
RS485, RS485/CAN for BMS, SNMP over Ethernet, dry contacts, EPO, and optional WiFi or 4G cards for remote visibility where there is no site network.
Platforms
Two distinct architectures. Which one fits is usually decided by the voltage at your point of common coupling and the space you have available.
Low-Voltage Modular UPS
50 kW & 100 kW modules · up to 4.8 MW
A three-in, three-out modular platform for data centers and industrial LV distribution. The 50 kW module scales vertically from 50 to 600 kVA/kW in a single cabinet, with up to four cabinets in parallel reaching 2.4 MW. The 100 kW module scales from 400 to 1200 kVA/kW per cabinet and 4.8 MW across four.
- Module ratings
- 50 kW and 100 kW
- Single cabinet
- 50–600 kVA/kW (50 kW module)
- Maximum parallel
- 4.8 MW (four cabinets, 100 kW modules)
- Output power factor
- 1.0
- On-line efficiency
- 96% (up to 99% in ECO mode)
- Input power factor
- Up to 0.99 with active PFC
- Footprint
- 300 kVA in approximately 0.5 m²
- Interface
- 7-inch colour touchscreen HMI
- Frequency
- Self-adaptive 50/60 Hz with conversion
- Enclosure
- Indoor cabinet, or outdoor-rated containerized
PureWave UPS System
250 kW – 16 MW · 208 V – 15 kV
Medium-voltage UPS connected directly to the incoming bus, protecting whole plants and campuses. RE&D owns the PureWave design and continues to service, refurbish and build it.
- Rating
- 250 kW – 16 MW · 208 V – 15 kV
- System voltage
- 4 kV – 15 kV
- Operating modes
- Ready, bypass, maintenance bypass, emergency bypass isolation
- Generator interface
- Standard
- Monitoring
- Integrated monitoring computer and software
- Maintenance
- Defined quarterly and annual schedules
PureWave UPS XT System
2.25 – 22.5 MW · 5 – 25 kV
The extended-range medium-voltage platform, reaching 22.5 MW (25 MVA) at up to 25 kV for the largest single-point protection requirements.
- Rating
- 2.25 MW – 22.5 MW (2.5 MVA – 25 MVA)
- System voltage
- 5 kV – 25 kV
- Application
- Whole-facility and campus-scale protection
- Support
- Full lifecycle support, spares and field service from RE&D
Where this gets deployed.
- Hyperscale and colocation data centers
- Semiconductor and lithium battery production lines
- Pharmaceutical and food processing plants
- Refineries, compressor stations and pipeline facilities
- Hospital and campus critical infrastructure
- Broadcast, transport and other continuous-operation sites
Industries served
Literature & datasheets
Download the current product literature, or browse the full library including legacy and discontinued systems.
Questions we get asked most.
- How large can a low-voltage modular UPS scale?
- The 50 kW module expands vertically from 50 to 600 kVA/kW in a single cabinet, with up to four cabinets in parallel reaching 2.4 MW. The 100 kW module expands from 400 to 1200 kVA/kW in one cabinet, reaching 4.8 MW with four cabinets in parallel.
- What happens if a cooling fan fails?
- The system derates rather than shutting down. With one fan failed it holds 50% load; with two failed it holds 30%. Fan speed is also actively managed against temperature, which reduces noise and extends service life under normal operation.
- Can these systems be installed outdoors?
- Yes. An outdoor-rated containerized configuration is available for the low-voltage platform, and the medium-voltage systems are routinely deployed in containerized form. This is often the fastest route on sites where there is no spare electrical room.
- Do you still support legacy PureWave UPS systems?
- Yes. RE&D acquired the PureWave power quality line and continues to support the installed base with spares, field service, refurbishment and documentation, including systems formally discontinued by the original manufacturer.
- Lead-acid or lithium?
- Both are supported, with configurations from 30 to 46 cells. Lithium iron phosphate generally wins on footprint, cycle life and temperature tolerance; lead-acid still wins on upfront cost for short-autonomy standby duty. We size against the autonomy and the replacement cycle you are actually planning for.
Usually specified alongside this.
BESS
Grid-forming storage customised to any size, with standard configurations from 365 kWh cabinets to 50 MWh medium-voltage blocks. Cascaded topology, liquid cooled, sub-5 ms response, no station transformer.
Read moreServicesMonitoring & Support
Continuous health monitoring, predictive fault analytics and secure remote diagnostics, so most faults are diagnosed before anyone gets in a van.
Read moreServicesField Services
Commissioning, FAT/SAT, preventive maintenance, repairs and refurbishment, including legacy PureWave and DSTATCOM fleets the original manufacturer no longer supports.
Read moreSend us the single-line diagram.
We would rather look at your actual system than send you a generic proposal. Share the drawing, the constraint you are working against, and the date you need it working by.
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Renewable Energy & Drives
5325 S Moorland RdNew Berlin, WI 53151United States
Severn Drives & Energy
Units 2 & 3, Kingsley Business ParkNew Road, Kibworth BeauchampLeicestershire, LE8 0LEUnited Kingdom
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