Power cuts give no warning
A mains failure stops business, medical equipment, the cold chain or production.
Our answer
Automatic start and restoration of essential circuits within seconds.
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- Expertise
- Power & energy
- Generator sets
Generator sets
Backup power when the grid fails.
- StandbyAutomatic start on power failure
- ATSMains / generator changeover with no one on site
- TestedLoad tests before handover
The challenges
What is at stake
Sizing, supply, installation and connection of generator sets with automatic transfer switches, to keep essential activities running during outages.
A correctly sized generator
Undersized, it trips when large motors start; oversized, it costs a lot and clogs up.
Our answer
A precise load assessment, taking inrush currents and planned extensions into account.
A generator that starts when it matters
A flat battery, stale diesel, clogged filters: a generator that is never tested is a generator that will not start.
Our answer
Regular tests, scheduled maintenance and tracking of running hours.
A safe changeover
The generator and the mains must never be connected at the same time.
Our answer
An automatic transfer switch with interlocking, adjusted and tested.
Architecture
An architecture designed in layers
Mains, transfer switch and generator form a single system: as soon as the mains fails the generator starts and the switch changes over, then everything returns to normal automatically when the mains comes back.
Every installation is delivered tested, labelled and documented, for simple operation and maintenance.
- Layer 01
Mains supply
Continuous monitoring of mains voltage and frequency.
- Layer 02
Generator set
Diesel engine, alternator, soundproofed canopy and fuel reserve.
- Layer 03
Transfer switch
Automatic mains / generator changeover with a safety interlock.
- Layer 04
Backed-up circuits
A board of priority feeders: safety, refrigeration, IT, medical.
- Layer 05
Monitoring
Alarms, running hours and fuel level viewable remotely.
Services
Our services
Power assessment and sizing
Survey of loads and inrush currents, and choice of the right rating.
Supply and installation
Canopied or room-installed generator, plinth, exhaust and ventilation.
Automatic transfer switches
Automatic changeover, time delays and mains return adjusted.
Connection and load testing
Connection to the switchboards and load-bank tests before handover.
Periodic servicing
Oil changes, filters, batteries and tests on the manufacturer’s schedule.
Troubleshooting
Rapid response to breakdowns, including on critical sites.
Technologies we master
Diesel generatorsAutomatic transfer switchesLoad testingMonitoring
Method
Our method, step by step
- 1
Power assessment
Loads to back up, motor starts, planned extensions.
- 2
Selection & siting
Rating, canopy, location, exhaust and fuel.
- 3
Installation
Installation, connection, transfer switch and backed-up circuit board.
- 4
Load testing
Simulated mains failure, changeovers and measured performance under load.
- 5
Maintenance
Maintenance contract and periodic tests.
Standards
Compliance with standards
- ISO 8528Generator sets
- IEC 60947-6-1Automatic transfer switches
- IEC 60364-5-55Standby generating sets
Deliverables
What we hand over to you
- Sizing calculation
- Connection and transfer switch diagrams
- Load test report
- Maintenance logbook
- Operating instructions
Sectors
Where we have deployed it
Maintenance & 24/7 support
This system can be covered by a preventive and corrective maintenance contract, with priority response on critical sites.
See the plansHow long does it take to restore power?
A few seconds is usually enough for the generator to start and the switch to change over. For truly uninterrupted power, it is combined with a UPS.
Does the whole building need backup?
Not necessarily. Backing up only essential circuits allows a smaller, cheaper generator.
Do you maintain existing generators?
Yes, whatever the brand: assessment, overhaul and maintenance contract.
Let’s talk about your site
A project, an installation to take over or to maintain?
Our engineers study your needs and reply within 48 business hours with initial technical and budget guidance.