What buyers should know first

Mining sites often need generators for longer running hours, heavy motor starts, dust, heat, remote maintenance, and uneven load profiles. For this reason, buyers should discuss prime-rated operation, not only emergency standby capacity.

In practice

Ask the supplier to state prime kW, standby kW, engine model, alternator model, controller model, fuel consumption basis, radiator design, and service access.

Procurement checklist

• Confirm running load, starting load, voltage, phase, and frequency.
• State whether the generator is for standby duty, prime duty, or mixed project use.
• Confirm silent canopy, open-frame, containerized structure, ATS, or manual transfer needs.
• Send altitude, ambient temperature, installation space, ventilation, and noise limits.
• Request datasheet, engine model, alternator model, controller details, drawings, and packing dimensions.

Common configuration mistakes

Many RFQ problems start when buyers compare only kW or kVA. Rating basis, motor starting demand, site condition, fuel autonomy, service access, and transfer equipment can change the correct configuration. Buyers can compare open diesel generator sets and silent diesel generator sets.

FAQ

What should be sent before asking for price?

Send the load list, voltage, phase, frequency, expected running hours, site condition, enclosure preference, and transfer requirement.

Is standby rating the same as prime rating?

No. Standby rating is for emergency backup. Prime rating is used when the generator carries variable load for longer operating periods.

Should ATS be included in every quotation?

ATS should be included when automatic utility-to-generator transfer is required. Manual or temporary systems may use different switching arrangements.

Can the supplier choose the final size from limited information?

A supplier can suggest a planning range, but final sizing should be checked against real load, starting current, site condition, and project engineer requirements.