Factory acceptance testing (FAT) is the last checkpoint before your transformer leaves the factory. Done well, it catches problems while they are still cheap to fix.
This guide explains how to plan a FAT, what to verify and how to record the outcome.
Factory acceptance testing (FAT) is the last checkpoint before your transformer leaves the factory. Done well, it catches problems while they are still cheap to fix.
This guide explains how to plan a FAT, what to verify and how to record the outcome.
The FAT scope should be agreed when the order is placed: which routine tests, whether type test reports will be provided, who attends, and what documentation will be issued.
Visual and dimensional check — Against the approved GA drawing
Winding resistance — All taps, all phases
Voltage ratio and vector group — On every tap position
Impedance voltage and load loss — At rated current, corrected to reference temperature
No-load loss and no-load current — At rated voltage and frequency
Dielectric tests — Applied voltage and induced voltage withstand
Insulation resistance — Basic condition verification
Functional checks — Tap changer, cooling, protection and monitoring devices
Check that the nameplate data matches your order, that the serial number is recorded, that test instruments are calibrated, and that the values reported are the ones actually measured.
Certified routine test report, type test reports where applicable, GA drawings as built, wiring diagrams, manuals and certificates of conformity.
Any non-conformity should be recorded in writing with an agreed corrective action and retest. Do not accept shipment with open issues noted only verbally.
Not sure which rating fits your project? Send us your load list and we will size it for you — or email info@xsdfftransformer.com, call +86 158 6789 7761 or WhatsApp +852 2416 2620.
Send us the rating, primary and secondary voltage, frequency and quantity and you get a drawing and a quotation back, usually within one working day.
