Data Center PowerPOD 3.0 Technology White Paper

Overview

The document defines a skid-mountable lineup for 2N data-centre power. The 2.5 MW PowerPOD measures 2475 x 9600 x 1500 mm with a 2500 kVA transformer and 4 x 600 kVA UPS; the 2.0 MW variant uses 2000 kVA and 4 x 500 kVA. The motivation is that average rack power rose from 4 kW to 6-8 kW and is heading to 12-16 kW, which enlarges the power room's share of floor area.

On protection, IEC 60364-4-43 requires a protective device within 3 m on an unprotected branch, and PowerPOD 3.0 keeps branch S2 at 3 m or less using fused 100 kVA UPS modules. S-ECO mode reaches efficiency above 98.5 % at 25 % load and 99 % at 50 % load with 0 ms transfer, meeting IEC 62040-3 Class 1; in bypass the input PF is above 0.99 and THDi below 3 %.

Installation needs 2300 mm of front and 1000 mm of rear clearance (2100/800 mm if space-limited), and the floor must carry at least 1.8 t/m2. Commissioning runs transformer, incoming/bus-tie cabinet, maintenance bypass cabinet, feeder cabinet. The cabinet count for 2.5 MW falls from 22 to 11 (40 % less footprint); in a 1500-rack, 8 kW/rack 2N site this frees 510 m2, about 170 extra racks. Link efficiency is 94.5 % to 95.6 % for double conversion and 97.8 % for S-ECO; for 12 MW at 50 % load and USD 0.11/kWh the 10-year saving is about USD 0.96 M (double conversion) or about USD 1.9 M (S-ECO).

Key points

1. Average rack power rose from 4 kW to 6-8 kW and is heading to 12-16 kW.
2. IEC 60364-4-43: protective device within 3 m on an unprotected branch; PowerPOD 3.0 keeps S2 at 3 m or less with fused 100 kVA UPS modules.
3. S-ECO: above 98.5 % at 25 % load, 99 % at 50 % load, 0 ms transfer, IEC 62040-3 Class 1.
4. 2.5 MW PowerPOD: 2475 x 9600 x 1500 mm, 2500 kVA transformer, 4 x 600 kVA UPS; 2.0 MW: 2000 kVA and 4 x 500 kVA.
5. Clearances 2300 mm front, 1000 mm rear (2100/800 mm if limited); floor at least 1.8 t/m2.
6. Cabinets for 2.5 MW cut from 22 to 11, 40 % less footprint; 510 m2 and about 170 extra racks in a 1500-rack site.
7. Link efficiency: double conversion 94.5-95.6 %, S-ECO 97.8 %; 10-year saving about USD 0.96 M or USD 1.9 M.
8. Commissioning order: transformer, incoming/bus-tie, maintenance bypass, feeder cabinet.

Using it in design

• Add a 'prefabricated power train' block type (transformer, LV, UPS, feeders) carrying footprint, weight and a clearance envelope.
• Enforce front, rear and side clearances and the 1.8 t/m2 floor loading.
• Check unprotected branch lengths in single-line diagrams against the 3 m limit of IEC 60364-4-43.
• Catalogue UPS eco modes with efficiency at 25 % and 50 % load and the transfer class.
• Provide a TCO comparison template for an integrated versus a stick-built power room.

Who should read it

Electrical designers and project managers weighing a prefabricated power train against a conventional power room.

Related standards

• IEC 60364-4-43
• IEC 62040-3
• IEC 61439

Publication details

Authors

Huawei Digital Power

Publisher

Huawei Digital Power

Year

2022

Document language

English

Source type

Manufacturer

Access

Free to read

Licence

Copyright retained; citation only — the publisher’s terms apply to the original document

Citation