Teksan Data Center Power Solutions

Overview

The core of the brochure is a table contrasting Standby, Prime, Continuous and ISO 8528-1:2018 DCP on load profile, annual hours and average load. Standby is defined at 200 hours per year and 70% average load, Prime at unlimited hours and 70%, and Continuous at unlimited hours and 100% fixed load. DCP allows unlimited hours, but because ISO leaves the average load undefined, it is to be treated as a maximum of 100%.

The critical limit of DCP is that it excludes prolonged parallel operation with the utility. A DCP-rated basis is therefore unsuitable if the gensets will also serve peak shaving or utility-parallel duty. The class definition sets no load-factor limit and covers unlimited hours at constant or variable load.

The brochure then lists options. On controls: redundant or hot-standby control system, double AVR and PMG excitation. On the mechanical side: redundant electric starter and battery group, double-bearing and class F alternators. For fuel: double-skinned underground or above-ground main tanks, leak detection, automatic filling with redundant pumps and fuel polishing. The synchronisation schemes are multiple-set standby to mains with break or no-break return, multiple mains supplies, and a single set serving multiple mains. The material is marketing-level and contains no calculation method.

Key points

1. DCP (ISO 8528-1:2018) is continuous power for unlimited hours at constant or variable load, with no load-factor limit.
2. Prolonged parallel operation with the utility is not allowed under DCP.
3. Standby: 200 h/yr at 70% average load.
4. Prime: unlimited hours at 70% average load; Continuous: unlimited hours at 100% fixed load.
5. DCP average load is undefined in ISO and should be treated as a maximum of 100%.
6. Resilience options: redundant control, double AVR, PMG, redundant electric starter and battery group, double-bearing and class F alternator.
7. Synchronisation: multiple-set standby to mains with break or no-break return, multiple mains, single set to multiple mains.
8. Fuel options: double-skinned tanks, leak detection, automatic filling with redundant pumps, fuel polishing.

Using it in design

• Add DCP to the rating-class field of the generator catalogue and set 'utility parallel allowed' to false for it.
• If the design uses gensets for peak shaving or utility-parallel operation, add a rule that blocks a DCP-rated basis.
• For Tier III/IV, put redundant controls/AVR/starters, redundant fuel transfer pumps, leak detection and polishing on the option checklist.
• Include seismic isolators in the selection where the site seismic zone requires them.

Who should read it

Electrical designers choosing a generator rating class from manufacturer catalogues, and catalogue or rule developers encoding those classes.

Related standards

• ISO 8528-1:2018
• Uptime Institute Tier Standard: Topology

Publication details

Authors

Teksan

Publisher

Teksan

Year

2025

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