The transfer device must mechanically or electrically prevent utility and generator sources from being connected together unless the system was specifically engineered for synchronising. A standard small standby installation must prevent backfeed.
How a 10kW generator ATS sequence works
- Monitor utility supply. The controller checks voltage, frequency and phase conditions according to configured limits.
- Confirm a real failure. A start delay helps avoid unnecessary operation during a very short utility disturbance.
- Start the generator. The ATS or AMF controller sends a remote-start signal to the generator controller.
- Wait for stable output. The system confirms generator voltage and frequency before transferring the essential load.
- Return after utility recovery. A retransfer delay confirms stable mains power before moving the load back.
- Run cooldown and stop. The generator runs unloaded for the configured cooldown period before stopping.
The exact sequence, delay times and failure alarms should be stated in the control description and confirmed during commissioning.
What ATS size and specification should be quoted?
| ATS item | What the buyer should provide | What the quotation should state |
|---|---|---|
| System voltage and phase | Utility and generator voltage, single or three phase, frequency | ATS rated voltage, frequency and wiring arrangement |
| Current | Main breaker rating and measured essential load | ATS continuous current and utilisation category |
| Poles and neutral | Earthing and neutral design from the site electrician | Two-, three- or four-pole switching as engineered |
| Controller interface | Required automatic operation and alarm contacts | Remote-start terminals, sensing, timers and indications |
| Enclosure | Indoor or outdoor location, heat, dust and moisture | Panel material, enclosure rating and cable entry |
| Bypass and maintenance | Whether the load must remain available during service | Standard ATS or engineered bypass-isolation scope |
A 12.5kVA reference output is approximately 54A at 230V single phase or 18A per line at 400V three phase. The ATS may need to match the incoming service or essential-load feeder rather than only the generator current. A qualified designer must make the final selection.
Factory package and site installation scope
A factory quotation can include the generator controller prepared for remote start, the ATS panel, interconnection diagram and identified terminals. It should also state whether control cable, power cable, glands, breakers, battery charger, heater or remote alarm contacts are included.
Site work normally includes cable sizing, routing, earthing, foundation, ventilation, exhaust, fuel arrangement, utility isolation, connection, protection coordination and commissioning. Do not assume these services are included in an FOB China or CIF Lagos equipment quotation.
Nigeria Generator Supply is a China-based factory-direct supply website. It does not claim a Nigerian installation office. Local contractor work, customs clearance and inland delivery are included only when specifically written into the commercial offer.
ATS commissioning checks
| Test | Expected evidence |
|---|---|
| Utility failure simulation | Start signal, successful cranking and stable generator output before transfer |
| Transfer interlock | No unsafe connection between utility and generator sources |
| Phase and voltage | Correct voltage, frequency, phase sequence and neutral arrangement |
| Utility return | Stable-mains delay, correct retransfer and generator cooldown |
| Manual operation | Safe documented procedure for test, service and emergency operation |
| Load test | Voltage and frequency remain acceptable under the agreed essential load and starting events |
Commissioning should be performed by qualified personnel using the approved drawings and local requirements. Keep the final settings, diagrams and test record with the equipment documents.
Complete the 10kW generator decision
Confirm the site output through the single-phase vs three-phase generator guide. Estimate operating cost with the 10kW fuel-consumption guide. A broader automatic-start explanation is available in the diesel generator ATS panel guide for Nigeria.
Hello, I need a 10kW generator with ATS for Nigeria. Site phase: [single/three], voltage: [ ], main breaker: [ ]A, essential load: [ ], largest motor or AC: [ ], ATS location: [indoor/outdoor], cable distance: [ ]m, quantity: [ ], delivery: [CIF Lagos/FOB China].
Send this RFQ on WhatsAppFrequently asked questions
What ATS size is needed for a 10kW generator?
ATS size is selected from voltage, phase, poles, current, load category and installation rules, not only generator kW. It may need to match the incoming service or essential-load feeder.
Does an ATS start the generator automatically?
A matched AMF system can monitor utility power, start the generator, transfer after stable output, return after utility recovery and run a cooldown period.
Can an ATS be installed without a qualified electrician?
No. Transfer equipment connects two power sources and must prevent unsafe backfeed. Earthing, neutral switching, cable sizing, protection and commissioning require professional verification.
