Malaysia · Data Center / Critical Facilities

2 MW Data Center N+1 Standby Power in Johor, Malaysia

Three 1,200 kW Yuchai generator sets for a 2 MW critical data-center load, with N+1 redundancy, 6.3 kV windings and staged load restoration.

This page describes a project we scoped and quoted. It is a scenario and a solution, not a delivered reference - we do not publish a client name, a site photograph or a commissioning record we cannot show you.

Project overview

A proposed 2 MW critical data-center facility in Johor requires standby generation that can support the full IT and cooling load while one generator is unavailable for maintenance. The design uses three 1,200 kW sets in an N+1 arrangement: any two generators must carry the complete 2 MW load. The site runs on a 50 Hz grid, uses medium-voltage distribution and requires controlled load restoration so the UPS, chillers and pumps do not receive the entire block load at once.

What the site had to solve

• ›The facility cannot lose the critical bus during a generator test or planned service, so redundancy must exist at the generator-plant level.
• ›Chillers and pumps create large starting currents; the generators must hold voltage and frequency through staged block loads.
• ›The plant must synchronise three sets, share load and communicate with the building management and switchgear systems.
• ›Johor's high ambient temperature and humidity make an undersized radiator or anti-condensation protection a long-term reliability risk.
• ›The plant room needs service access, exhaust routing and acoustic coordination without compromising generator output or cooling.
• ›Installation compliance, emissions documentation and final protection settings must be confirmed for the actual site and licensed electrical contractor.

Technical requirements

How we configured it

1. 01Selected the TFW-1200 model around the Yuchai YC12VTD1830-D30 engine: 1,200 kW prime / 1,500 kVA per set, giving 2,400 kW with any two generators online.
2. 02Specified TFW1200-4 alternators with 6.3 kV windings for direct connection to the medium-voltage distribution scheme, subject to final switchgear and protection coordination.
3. 03Configured a three-set synchronising and load-sharing system with mains paralleling logic, automatic start sequencing and remote alarm reporting.
4. 04Used staged load restoration rather than a single-step close: cooling and pump groups are reconnected in timed blocks after the generator bus is stable.
5. 05Specified a tropical cooling package and alternator anti-condensation heaters to suit the high ambient and humidity conditions in Johor.
6. 06Kept the sets as serviceable open-skid units inside a dedicated plant room, leaving acoustic treatment, exhaust routing and radiator airflow to the final building services design.

Product configuration

All specifications subject to confirmation per order. Spectrum table is the internal reference; final data per technical agreement.

What this configuration is designed to deliver

• ›A 2 MW critical load is the explicit design point: two online 1,200 kW sets operate at approximately 83% each, leaving capacity for short-term load variation.
• ›The third generator allows planned maintenance and testing without removing the N+1 capability from the operating plant.
• ›Staged load restoration limits the block-load step presented to the bus and gives the UPS, chillers and pumps a controlled recovery sequence.
• ›Medium-voltage 6.3 kV windings reduce current and cable size between the generator terminals and the project switchgear.
• ›A serviceable plant-room layout and tropical cooling package support routine maintenance and long-term operation in Malaysia.

These are the effects the design targets, described as expectations rather than measured field results.

Keep reading

• Full duty guide: Data Center / Critical Facilities →
• Buyer guide behind this design →
• Browse every generator set in the catalogue →
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Power ratings follow ISO 8528-1:2018 (Prime PRP / Standby ESP), and the fuel figures are stated at ISO 3046-1:2002 standard reference conditions. Both are confirmed unit by unit on our load bank, and the test record ships with the set. Standby figures are the engine's factory standby rating from the model spectrum table — never a computed 110% of the rated output. Noise figures are typical open-type reference values, not a guaranteed sound-power level.