Laser cleaner power supply & generator sizing
Estimate site current, electrical design load and generator capacity for a laser cleaning machine, chiller, extraction, compressor and automation equipment. Compare continuous demand with motor starting demand before installation.
- Single-phase and three-phase current
- Nameplate or component estimate
- Altitude and temperature derating
- Generator starting-load check
Estimate the supply and generator capacity for your complete cleaning system
For the strongest result, use the total rated input from the machine nameplate or Oceanplayer electrical drawing. Component mode is useful for early project planning.
How the tool converts machine load into supply and generator capacity
The equations provide a transparent planning estimate while keeping continuous operation separate from motor starting demand.
kW x 1000 / (1.732 x V x PF)Estimates balanced line current for a three-phase load at the selected voltage and operating power factor.
kW x 1000 / (V x PF)Estimates current for a single-phase machine or site supply.
running kW / (generator PF x target load x derating)Keeps normal operation below the selected loading target after environmental derating.
base load kVA + largest motor starting kVAChecks whether a chiller, extraction fan or compressor start may control generator size.
The laser's optical wattage is not its electrical input
A 2000W laser label describes delivered laser output, not the full site load. The source conversion loss, cooling, controls, extraction and accessories also consume electricity.
Collect these values before purchasing electrical equipment
The final circuit and generator should be selected from confirmed project documents rather than a generic laser power category.
Confirm whether the nameplate value includes the laser source, integrated chiller, controls and internal auxiliaries.
Match the exact machine configuration to the destination supply, transformer and generator output.
Identify the chiller compressor, extraction fan or air compressor and whether it uses DOL, soft start or VFD control.
Ask for acceptable voltage regulation, frequency stability, harmonic distortion, grounding and neutral arrangement.
The tool estimates 4% loss per 1000 m above 1000 m and 3% per 10°C above 40°C. Replace this with the selected model's curve.
Electrical reserve raises the site design current. Generator target loading separately leaves operating capacity below the nameplate rating.
Check more than the number printed on the generator enclosure
A generator that meets nominal kVA may still perform poorly with sensitive laser electronics or motor starting loads.
Use the correct duty rating
Prime power and standby ratings are not interchangeable for continuous field cleaning.
- Confirm expected daily operating hours
- Check allowable average load
- Review service interval and fuel capacity
Protect controls and laser electronics
Confirm AVR response, frequency stability and total harmonic distortion under changing load.
- Ask for low-THD performance data
- Review electronic and nonlinear loads
- Confirm neutral and grounding design
Prevent voltage and frequency collapse
Chillers, compressors and extraction fans can create short starting peaks above running demand.
- Identify the largest motor
- Confirm VFD, soft-start or DOL method
- Check step-load acceptance with the supplier
Know which project condition may change the final electrical design
Use these checks to identify missing information before the machine reaches the site.
| Project Condition | Main Risk | Information To Confirm | Recommended Action |
|---|---|---|---|
| Mobile cleaning with a generator | Voltage or frequency instability during step loads | Prime rating, AVR, THD, motor start and cable distance | Review the complete load list with both suppliers |
| Long cable run to the work area | Voltage drop and poor starting performance | Length, conductor material, installation method and load current | Have a licensed electrician calculate cable and protection |
| High-altitude or hot site | Reduced engine and alternator output | Altitude, ambient temperature and ventilation | Apply the model-specific generator derating curve |
| Water-cooled high-power cleaner | Chiller compressor controls starting capacity | Chiller rated input, compressor size and start method | Sequence loads or use approved soft-start/VFD options |
| Robot, extraction and compressor added | Auxiliary loads are omitted from machine input | All external continuous and intermittent equipment | Create one site load schedule before sizing the supply |
| Different destination voltage | Machine, transformer and protection mismatch | Voltage, phase, frequency and earthing system | Confirm the delivered electrical configuration before production |
Prepare a site power check that protects uptime and warranty
Complete these items before energizing the cleaner, chiller or automation cell.
Verify the delivered nameplate
Match machine serial number, voltage, phase, frequency and rated input to the order and site supply.
Measure unloaded and loaded voltage
Check phase-to-phase and phase-to-neutral values as applicable, including behavior during motor starting.
Confirm protection and isolation
Use locally compliant disconnects, overcurrent protection, residual-current measures and emergency procedures.
Inspect grounding and neutral
Follow the machine and generator manufacturer's approved earthing arrangement. Do not improvise neutral bonding.
Check cable routing and voltage drop
Account for cable length, ambient temperature, installation method, connectors and mechanical protection.
Start loads in an approved sequence
Confirm whether the generator should stabilize before energizing the chiller, extraction and laser source.
Match the cleaner and site power before shipment
Share your machine configuration, destination voltage and intended generator. Oceanplayer can provide the electrical data your electrician and generator supplier need for final selection.
Confirm equipment
Cleaner power, cooling, extraction, compressor and automation loads.
Confirm the site
Voltage, phase, frequency, altitude, temperature and cable distance.
Approve the supply
Coordinate machine data with the licensed electrician and generator supplier.
Continue planning the complete laser cleaning project
Check machine power, production capacity, project economics and process feasibility before ordering.
Laser cleaner power supply and generator questions
Practical answers for preparing grid power or mobile generator power for industrial laser cleaning.