PRODUCT PREVIEW
Transformers
Project-specific power transformation
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Wafr Technology
Under Development
Thermal infrastructure for high-density computing and liquid-cooled environments.
Overview
FRDGE is both a cooling system and a thermal battery. It uses lower ambient temperatures to cool a facility while storing cooling for later use, helping reduce the amount of mechanical cooling required. Low-ambient operation, in climates with sufficiently low outdoor night time temperatures, FRDGE can use ambient conditions for heat rejection while charging its thermal storage. In the right climate and system configuration, this can significantly reduce or eliminate the need for mechanical chillers.
High-ambient operation, in hotter climates, FRDGE can shift chiller operation to cooler nighttime hours, when chillers operate more efficiently. Stored cooling can then be dispatched during the hottest parts of the day, reducing peak cooling demand and overall energy use. System impact: Depending on climate, FRDGE can reduce cooling energy requirements by 30 to 80% and water consumption by up to 95%.
THERMAL CAPACITY
Custom engineered to project requirements
COOLING + STORAGE
Integrated in one system
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Four distribution transformer platforms engineered for Wafr's project scope.
Five switchgear platforms engineered for Wafr's project scope.
Engineering
Structured so engineering and procurement teams can review key ranges quickly.
Architecture
Modular
Redundancy
Configurable
Fluid loop
Application specific
Controls
Integrated
Deployment
Packaged / field integrated
Applications
Facility cooling loop
Interface
Facility cooling loop
Three-Phase Oil-Immersed
oil-immersed
transformers
Fluid Coolers
fluid-coolers
dry-coolers
WTB Commercial
wtb-commercial
thermal-storage-battery
Three-Phase Dry-Type
dry-type
transformers
Freon Condensers
freon-condensers
dry-coolers
Single-Phase Pole-Mounted
pole-mounted
transformers
Ammonia Condensers
ammonia-condensers
dry-coolers
Pad-Mount
pad-mount
transformers
CO2 Gas Coolers
gas-coolers
dry-coolers
Oil Coolers
oil-coolers
dry-coolers
50–500 kVA
11 / 0.433 kV
Dyn11
ONAN
IEC 60076
oil-immersed
30–800 kVA
10 / 0.4 kV
Dyn11
AN / AF
IEC 60076-11
dry-type
15–100 kVA
13.2 / 0.24 kV
—
ONAN
IEC 60076
pole-mounted
4,000 kVA
26–36 kV / 34.5 kV rated
Dyn11
ONAN
UL 1561 / IEEE C57.12
pad-mount
470–2,190 kW
Water / Glycol
1.8–3.2 mm
20 ft (6,058 mm) / 40 ft (12,192 mm)
AC / EC / marine / explosion-proof
fluid-coolers
343–2,005 kW
R404A
1.8–3.2 mm
20 ft (6,058 mm) / 40 ft (12,192 mm)
AC / EC / marine / explosion-proof
freon-condensers
420–2,237 kW
NH3
1.8–3.2 mm
20 ft (6,058 mm) / 40 ft (12,192 mm)
AC / EC / marine / explosion-proof
ammonia-condensers
407–1,267 kW
CO2 (94 Bar)
1.8–3.2 mm
20 ft (6,058 mm) / 40 ft (12,192 mm)
AC / EC / marine / explosion-proof
gas-coolers
240–1,309 kW
ISO VG 46 oil
1.8–3.2 mm
20 ft (6,058 mm) / 40 ft (12,192 mm)
AC / EC / marine / explosion-proof
oil-coolers
Maximum nominal cold storage capacity
kWh(th)
1,500
1,000
500
wtb-commercial
630–1,250 kVA
11 / 0.433 kV
Dyn11
ONAN
IEC 60076
oil-immersed
1,000–2,500 kVA
10 / 0.4 kV
Dyn11
AF
IEC 60076-11
dry-type
15–150 kVA
23/33 kV / 0.24 kV
—
ONAN
IEC 60076
pole-mounted
5,000–7,250 kVA
11–17 kV
Dyn11
ONAN / ONAF
UL 1561 / IEEE C57.12
pad-mount
1,600–4,000 kVA
33 / 0.69 kV
Dyn11
ONAN
IEC 60076
oil-immersed
Phase-change temperature
°C
Grade C7: 7.5 ± 1 · Grade C18: 18 ± 1
Grade C7: 7.5 ± 1 · Grade C18: 18 ± 1
Grade C7: 7.5 ± 1 · Grade C18: 18 ± 1
wtb-commercial
5,000–8,800 kVA
34.5 / 0.48 kV
Dyn11
ONAN / ONAF
IEC 60076
oil-immersed
Charging water inlet temperature
°C
C7: 5 · C18: 15
C7: 5 · C18: 15
C7: 5 · C18: 15
wtb-commercial
Discharge outlet temperature
°C
C7: 7–12 · C18: 18–23
C7: 7–12 · C18: 18–23
C7: 7–12 · C18: 18–23
wtb-commercial
Peak discharge temperature
°C
C7: 16.8 · C18: per test report
C7: 16.8 · C18: per test report
C7: 16.8 · C18: per test report
wtb-commercial
Storage method
—
Latent (phase change)
Latent (phase change)
Latent (phase change)
wtb-commercial
Rated flow rate
m³/h
58
40
20
wtb-commercial
Water supply pipe diameter
DN
150
150
100
wtb-commercial
Working pressure
MPa
0.8–1.0
0.8–1.0
0.8–1.0
wtb-commercial
Pressure drop
kPa
76.8
65.7
50.7
wtb-commercial
Recommended pipe velocity
m/s
0.8
0.8
0.8
wtb-commercial
Recommended chiller capacity
kW
Per configuration
142–165
70–80
wtb-commercial
Recommended charging window
h
≈ 8 (off-peak / valley tariff)
≈ 8 (off-peak / valley tariff)
≈ 8 (off-peak / valley tariff)
wtb-commercial
Recommended discharge window
—
Local peak tariff hours
Local peak tariff hours
Local peak tariff hours
wtb-commercial
Control
—
Networked automatic program control
Networked automatic program control
Networked automatic program control
wtb-commercial
Unit size (L × W × H)
mm
9,300 × 2,896 × 3,170
6,800 × 2,896 × 3,170
3,808 × 2,896 × 3,170
wtb-commercial
Operating weight
kg
≥ 36,000
≥ 26,500
≥ 14,300
wtb-commercial
Operating temperatures, flow requirements and control logic are engineered around each project's cooling load, climate and site conditions.
FRDGE can integrate with existing or new cooling infrastructure, including liquid cooling loops, direct-to-chip systems and immersion cooling where required.
Redundancy, controls and operating strategy are configured around project-specific reliability and performance requirements.
Deployment options include modular packaged systems and field-integrated installations, allowing FRDGE to scale with the cooling requirements of the site.
Compliance
CSA
Applicable by configuration
UL / cUL
Applicable by configuration
IEEE
Applicable by configuration
ANSI
Applicable by configuration
NEMA
Applicable by configuration
QA Docs
Applicable by configuration
Quality Commitment
24 months warranty against manufacturing defects, counted from commissioning (or 30 months from shipment, whichever ends first)
Covers transformer core, windings, tank and factory-installed components
Defective units repaired or replaced at Wafr's cost, including freight
Technical support: remote diagnosis within 48 hours, on-site service available for major claims
Spare parts shipped within 30 days for standard models
Extended warranty and preventive-maintenance packages available on request
Final warranty terms per purchase contract.
Resources
Everything an engineer or procurement team needs to move from evaluation to specification.
Specify
FRDGE
for your project
Send Wafr your project requirements and the team can confirm fit, configuration and documentation.
