How matching works
Compatibility gates first. Efficiency only ranks candidates that survive the electrical filters.
Read the rules →Find a distribution transformer that fits the electrical job.
Match Australian GEMS registrations by kVA, primary and secondary voltage, phase and transformer type, then rank compatible candidates by tested efficiency. Vector group, impedance, taps and physical interface stay visible as checks — never guessed.
Candidate finder, not design approval
A GEMS match can answer the open-data part of the problem: rating, voltage, phase, type, registration and efficiency. It cannot prove vector group, impedance, tap schedule, bushings, mounting, footprint or protection suitability.
Those unknowns are shown as verification items on every result rather than silently treated as matches.
Match results
Where the data comes from
The product spine is the Australian Government GEMS distribution-transformer export under CC BY 3.0 AU.
See provenance →Known limitations
The register is strong on rating, voltage and efficiency, but not on all of the fields that make a transformer physically or network-compatible.
Understand the gaps →Tender/specification use
Use the finder to shortlist registered candidates, then close every unresolved tender clause with supplier or type-test evidence.
See the decision boundary →