Solar & Wind
Power Solutions

A shared project rating does not make solar and wind transformer specifications interchangeable. Confirm the connected equipment, duty and installation before selecting a configuration.

Ratings and winding arrangement

State required power and winding voltages, frequency, phase, vector group, neutral / earthing arrangement, impedance and tapping requirements. Identify which values are preliminary.

Duty and thermal basis

Describe the loading cycle, auxiliary or reverse-power operation if applicable, reactive-power duty, cooling arrangement and temperature-rise basis. Agree the rating basis with the connected-equipment data.

Power quality and switching

Provide available harmonic spectra, converter switching information, DC injection limits where relevant, energisation scenarios and power-quality studies. Confirm required analysis and mitigation responsibilities.

Fault and insulation coordination

Provide fault levels and duration, protection philosophy, insulation requirements and available earthing / surge studies. Confirm equipment ratings and coordination at each boundary.

Losses, efficiency and sound

State the destination and contractual loss, efficiency and sound criteria, including evaluation and test conditions. Guaranteed values require an agreed technical schedule; no universal performance values are assumed.

Transformer package

Confirm the number and function of transformers, cooling, accessories, monitoring, terminations, spare parts and installation interfaces.

Distribution equipment

Identify required switchgear, feeder arrangements, compact / prefabricated substations and auxiliary distribution. Availability and package integration must be confirmed for the specific project.

Grid-interface items

Clarify metering, instrument transformers, protection relays, interlocks, earthing, communications and plant-control interfaces. Mark customer, utility, OEM and equipment-supplier responsibilities.

Studies, settings and approval

Identify who prepares and approves grid studies, relay settings, protection coordination and utility submissions. Grid connection acceptance must follow the project and destination requirements; it is not established by equipment supply alone.

Scope to confirm: listing an item here does not confirm that it is included, publicly documented or available as a standard ElevGrid package.

Clarify before quotation

Use a requirement register to record the source document, revision, responsible party, open question and agreed response. Separate confirmed inputs from assumptions and proposed deviations.

Agree the document schedule

Request the applicable datasheet, general arrangement, terminal / cable-interface drawings, schematics and accessory schedule. Confirm which documents are included, their review stages and language.

Agree verification and handover

Define inspection and test requirements, witness / hold points if needed, acceptance criteria, records, packing information and operation / maintenance documents in the contract.

Keep approvals traceable

Record the accepted technical baseline and control later changes. Confirm who releases documents and equipment for the next stage; deliverables and timing depend on the agreed supply scope.