Generator load screening

Generator Running & Starting Load Planner

Compare continuous running demand with the largest expected starting event and estimate an apparent-power planning range using entered nameplate values.

Enter your values

Example values demonstrate the method; they are not product recommendations.

Your result

Enter measured or nameplate values to calculate.

Method

Continuous watts are summed. Starting demand uses other running loads plus the largest motor starting watts. The higher demand is converted with entered power factor and reserve.

Important limits

Screening only. Use exact manufacturer starting data and generator transient-performance software. Phase, voltage, harmonics, altitude, temperature and load sequencing matter.

Technical reference

Use this planner to estimate generator running and starting kVA from connected loads, simultaneous use, power factor and motor starting demand. Enter values that reflect the equipment combination and operating sequence you intend to use.

What to enter

List the connected loads and identify which loads may operate at the same time. Use the applicable power factor and motor starting demand requested by the planner. The template controls the actual fields and calculations; this supporting copy does not replace its labels, formulas or result logic.

How to read the estimate

Review running kVA and starting kVA together. A generator may carry steady running demand yet still be affected by a motor-starting event. Treat the output as an early planning estimate, not confirmation of generator size, voltage regulation, waveform quality or compatibility.

Before selecting a generator

Verify equipment nameplates, starting method, load sequence, supply phase and manufacturer requirements. Have the final generator rating, protection, earthing and changeover arrangement checked by a qualified electrical professional before purchase or connection.