PWC-01
Modular Hot-Swappable Online UPS
APC Symmetra/Galaxy, Vertiv Liebert Trinergy/EXM, and Eaton 93PM modular UPS systems allowing live 20kW–50kW power module swaps with zero downtime.
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DC-03 // 2N POWER & PRECISION COOLING
Redundant 2N Power Feeds, Online Modular UPS & Precision Data Center Cooling
Eliminate the #1 and #2 causes of data center outages—power failures and thermal overheating. Dulo Tech engineers dual-bus 2N electrical distribution, hot-swappable modular UPS arrays, prime-rated sync generators, and low-PUE precision in-row/perimeter cooling.
2N & N+1 Modular Online UPS
Precision In-Row & CRAC Cooling
< 1.32 PUE Thermal Efficiency
Auto-Sync Diesel Generators & ATS
2N POWER & PRECISION HVAC // < 1.32 PUE
0 ms
Online Double-Conversion Transfer
18–27°C
ASHRAE Cold-Aisle Thermal Envelope
2N
Dual Independent A+B Power Buses
30%
Electricity Savings via Containment
THERMAL & ELECTRICAL MASTERY
Engineered for East African Grid Realities and High-Density Compute Heat
East African utility grids experience frequent voltage sags, harmonic spikes, phase imbalances, and extended blackouts—while tropical ambient temperatures challenge conventional cooling systems.
Dulo Tech engineers resilient 2N electrical chains (from dual MV transformers and prime-rated diesel generators with automatic transfer switches down to hot-swappable modular Lithium-Ion/VRLA UPS frames and metered rack PDUs) paired with N+1 precision cooling that maintains strict ASHRAE TC 9.9 thermal envelopes.
2N / N+1 Modular Online Double-Conversion UPS (Schneider APC, Vertiv, Eaton)
In-Row & Perimeter Precision Cooling (DX, Chilled Water & Free-Cooling)
Prime-Rated Acoustic Generators, Motorized ATS/STS & Clean Earthing
2N MODULAR UPS & IN-ROW COOLING // ASHRAE
SLA: 99.999%
SIX POWER & COOLING PILLARS
Complete Critical Power & Thermal Engineering Portfolio
We design, supply, and maintain six core electrical and mechanical subsystems.
PWC-01
PWC-02
In-Row & Perimeter Precision Cooling
Vertiv Liebert, Schneider Uniflair, and Stulz inverter-driven precision CRAC/CRAH and In-Row coolers coupled directly to hot-aisle heat loads.
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PWC-03
Prime Generators & Motorized ATS/STS
Synchronized Cummins/Perkins acoustic diesel generators, motorized Automatic Transfer Switches (ATS), and Static Transfer Switches (STS < 4ms).
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PWC-04
Lithium-Ion & BMS Battery Telemetry
Long-life Lithium-Ion (LiFePO4) and high-rate VRLA battery banks equipped with per-cell impedance, voltage, and temperature BMS monitoring.
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PWC-05
Intelligent Rack PDUs & Overhead Busways
Dual A/B color-coded (Red/Blue) metered and switched IP PDUs with per-outlet power metering, environmental probes, and locking IEC cords.
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PWC-06
Power Quality, AVR & Clean Earthing
Servo/static Automatic Voltage Regulators (AVRs), Type 1+2 surge protection devices (SPDs), active harmonic filters, and < 1 Ohm clean IT earthing pits.
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PUE & ENERGY OPTIMIZATION STRATEGIES
Six Ways We Cut Your Data Center Electricity Bill by 25–35%
Cooling typically consumes 40% of a legacy server room's electricity. We slash that waste through six engineering upgrades.
PUE-01
Variable-Speed EC Fans & Inverter Compressors
Replacing fixed-speed AC units with inverter compressors and EC fans that modulate power draw dynamically with real-time server load.
40% FAN SAVINGS
PUE-02
Strict Hot & Cold Aisle Separation
Preventing cold supply air from mixing with hot exhaust air so supply temperatures can be safely raised to ASHRAE 22–24°C.
ZERO AIR MIXING
PUE-03
Close-Coupled In-Row Cooling
Placing cooling coils directly between server racks to shorten airflow paths from 15 meters down to 1.5 meters.
SHORT AIR PATH
PUE-04
High-Efficiency Eco-Mode / VI UPS
Utilizing 97%–99% efficient silicon-carbide (SiC) double-conversion and eConversion UPS topologies.
99% UPS EFFICIENCY
PUE-05
Blanking Panels & Brush Floor Grommets
Sealing every unused rack U-space and cable floor cutout to stop cold plenum pressure loss.
PRESSURE SEALED
PUE-06
Continuous Real-Time PUE Metering
Installing Class-1 kWh meters on utility incoming feeds and IT UPS outputs to track live Power Usage Effectiveness (PUE) in DCIM.
LIVE PUE METER
POWER & COOLING SPECIFICATION MATRIX
Electrical & Thermal Engineering Standards
Technical design parameters enforced across Dulo Tech power and cooling deployments.
| Parameter Code | Subsystem Domain | Engineering Standard | Redundancy Topology | Target Operating Metric |
|---|---|---|---|---|
| MEP-01 | Utility & Generator Entry | IEC 61439 / IEEE 446 | Dual Transformer + N+1 Sync Gen | < 10 Sec Generator Pick-Up |
| MEP-02 | UPS & Battery Autonomy | IEC 62040-3 (VFI-SS-111) | 2N Dual Bus or N+1 Modular | 15–60 Min Full-Load Battery Runtime |
| MEP-03 | Rack Power Distribution | TIA-942 / IEC 60309 | Dual A+B Switched IP PDUs | Balanced < 40% Max Per-Bus Load (2N) |
| MEP-04 | Thermal & Humidity Envelope | ASHRAE TC 9.9 (Class A1) | N+1 or 2N In-Row / CRAC | 18–27°C Inlet / 45–55% Relative Humidity |
| MEP-05 | Clean Earthing & Surge | IEEE 1100 / BS 7430 | Dedicated Equipotential Mesh | < 1.0 Ohm Earth Resistance |
TECHNICAL KNOWLEDGE BASE
Frequently Asked Engineering & Procurement Questions
Direct answers from Dulo Tech Limited's Principal Systems Architects, CSOC Directors, and Institutional Procurement Officers at Mirage Towers, Nairobi.
Wall-mounted comfort ACs are designed for people, not servers: they have low airflow volume (CFM), spend 30% of their capacity condensing humidity (creating dry air and static electricity), and cannot handle concentrated 5kW–15kW rack heat plumes. Switching to close-coupled Precision In-Row cooling with aisle containment solves overheating permanently while cutting power usage.
In a 2N topology, your facility has two completely independent power paths—System A (Red) and System B (Blue)—each with its own UPS, battery bank, switchgear, and rack PDU. Every server's PSU-1 plugs into Bus A and PSU-2 plugs into Bus B, each running at under 45% load so either bus can carry 100% of the data center if the other fails completely.
While Lithium-Ion batteries have a higher initial purchase price, they last 10 to 15 years (vs. 3–4 years for VRLA), occupy 60% less floor space, weigh 70% less, tolerate higher ambient temperatures, and offer 30% lower 10-year Total Cost of Ownership.
For legacy single-corded network switches or appliances, we install rack-mount Automatic Transfer Switches (Rack ATS / STS) that take both A and B power feeds and switch between them in under 4 milliseconds—so the single-corded device never loses power.
Precision HVAC filters, drains, and refrigerant pressures, as well as UPS battery internal impedance and thermal connections, should undergo preventive maintenance every quarter (90 days).
Yes. Our electrical engineers deploy 7-day 3-phase power quality analyzers, earth resistance testers, and FLIR thermal cameras to diagnose nuisance tripping and harmonic issues.
Provide your rack count or kVA/kW load in the form below.
Need direct architectural clarification?
Call +254 799 000 595
DIRECT DISPATCH DESK
Request Technical Briefing or Tender BOQ Quote
Routed directly to our Senior Engineering Board at 12th Floor, Mirage Towers, Westlands, Nairobi.