1) What size generator do I need (kVA / kW)?▼
Add your total running load (kW) .
Allow for motor starting / inrush (often 2–3× running load).
Convert to kVA (common rule: kVA = kW ÷ 0.8).
Add 10–20% headroom .
2) Do I need Prime, Standby, or Continuous rating?▼
Standby : emergency backup.Prime : regular use with variable load.Continuous : constant steady load applications.
3) Single-phase or three-phase (230V / 400V)?▼
Most commercial/industrial sites require 400V three-phase . Smaller loads may only need 230V single-phase .
With three-phase sets, keep loads balanced across phases.
4) How much fuel will it use (litres per hour)?▼
Fuel burn depends on load. Ask for consumption at 25%, 50%, 75% and 100% load.
Plan required runtime .
Consider extended/bulk tanks .
Check bunded requirements and spill protection.
5) How noisy is it (dB(A)) and do I need an acoustic canopy?▼
Noise is commonly quoted as dB(A) at 7m . For built-up areas, an acoustic canopy is usually recommended.
Positioning/barriers can reduce perceived noise.
Ask about super-silent options if you have strict limits.
6) Do I need an Automatic Transfer Switch (ATS)?▼
If you need automatic changeover during a power cut, you typically need an ATS .
Detects mains failure and starts the generator.
Transfers load safely and prevents back-feeding.
7) What does installation involve (earthing, cabling, changeover)?▼
Cable sizing (current + voltage drop).Earthing arrangements for the site/system.ATS/changeover integration and protection.Ventilation and safe exhaust routing.
8) Should I buy new, used, or refurbished?▼
Check run hours and service history.
Ask if it has been tested under load .
Confirm warranty and support.
9) What maintenance does it need and how often?▼
Typical servicing includes oil/filters, coolant checks, belts/hoses inspection, plus battery/charger checks.
Standby sets often benefit from periodic load-bank testing .
10) Do I need remote monitoring or automatic test runs?▼
Monitoring helps catch issues early (battery charger faults, low fuel, alarms) and keeps test runs logged.
Choose alert routes (SMS/email/app).
Set scheduled exercise runs.
11) Where should it be located (ventilation, exhaust, access)?▼
Allow airflow and radiator clearance.
Route exhaust safely away from doors/windows.
Keep access clear for servicing/refuelling and emergency stop.
12) Is it better to hire or buy (total cost of ownership)?▼
Hiring suits short projects or unknown loads. Buying suits permanent standby power or long-term site use.
Compare servicing, callouts, compliance, fuel and downtime risk.
Consider lead times and whether you need temporary cover first.
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