Data Center Power Systems
Aksa Power Generation
Aksa's two-page data-centre brochure summarises Uptime tier concepts as they apply to engine generators and lists models with paired Standby and DCC (data-centre continuous) ratings.
On this page
Overview
The brochure restates the tier table in terms of generator capacity, redundancy (N, N+1, N after any failure), distribution paths and concurrent maintainability. Aksa's data-centre generator range reaches 3,000 kVA standby.
The rating rules are these: Tier III/IV generators must support the design load for unlimited hours at site conditions, while Tier I/II may use any rating up to nameplate. For prime ratings, option 1 is 70% of nameplate with no hour limit and option 2 gives larger capacity but needs a manufacturer letter; standby can be used for Tier III/IV only with a manufacturer letter. Derating for ambient temperature and elevation may be required in addition.
The model tables (Cummins- and Perkins-engined sets from roughly 500 to 3,000 kVA) show typical DCC-to-standby ratios. Cummins examples (standby/DCC kVA) are AC 2000 2000/1875 (QSK60-G3), AC 2500 2500/2250 (QSK60-G8) and AC 3000 3000/2750 (QSK78-G9). Perkins examples are AP 1650 1650/1500 (4012-46TAG2A) and AP 2500 2500/2250 (4016-61TRG3). The document is marketing-level but carries usable rating data.
Key points
- Data-centre generator range up to 3,000 kVA standby.
- Tier III/IV generators must support design load for unlimited hours; Tier I/II may use any rating up to nameplate.
- Prime: option 1 at 70% of nameplate, no hour limit; option 2 larger capacity with manufacturer letter; standby for Tier III/IV only with manufacturer letter.
- Cummins pairs (standby/DCC kVA): 2000/1875 (QSK60-G3), 2500/2250 (QSK60-G8), 3000/2750 (QSK78-G9).
- Perkins pairs: 1650/1500 (4012-46TAG2A), 2500/2250 (4016-61TRG3).
- Site derating for ambient temperature and elevation may be additionally required.
Using it in design
- Keep both standby and DCC kVA per model in the generator catalog; where data is missing, use DCC ~0.9-0.94 x standby as a flagged estimate.
- For Tier III/IV, require a rating with unlimited hours at design load (or prime at 70%, or a manufacturer letter).
- Apply the site derate before the tier check.
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Who should read it
Electrical designers checking generator ratings against Tier requirements.
Related standards
- ISO 8528-1
- Uptime Institute Tier Standard: Topology
Publication details
- Authors
- Aksa Power Generation
- Publisher
- Aksa Power Generation
- Year
- 2020
- 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
Aksa Power Generation (2020). Data Center Power Systems. Aksa Power Generation. https://dubai.aksa.com.tr/Content/Upload/Datacenter/Data_Center_Eng.pdf
Events on this subject
- Electricity Eurasia 2027
- ELECO 2026 Elektrik-Elektronik ve Biyomedikal Mühendisliği Konferansı
- ICCI 2027 – Uluslararası Enerji ve Çevre Fuarı ve Konferansı
All content and rights belong to the respective authors and publishers. SoSo CAD provides only the citation, its own summary and a link to the source, and is not responsible for the sources' content.
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