Question 1

What is a remanufactured transformer?

Accepted Answer

A remanufactured transformer is a used transformer that has been completely disassembled, inspected, and rebuilt to like-new condition. The remanufacturing process includes coil rewinding (where required), core repair, gasket replacement, tank reconditioning and repainting, oil replacement or reclamation, and full ANSI/IEEE testing. A remanufactured transformer typically performs equivalently to a new transformer at 50–70% of the cost.

Question 2

Why remanufactured instead of just used or repaired?

Accepted Answer

A used transformer is sold as-is — no work performed, no testing. A repaired transformer addresses a single fault but the rest of the unit may be near end-of-life. Remanufactured means the unit is fully disassembled, every worn or damaged component replaced (including rewound coils when needed), retanked, refilled with clean oil, and ANSI/IEEE tested before shipment. Miami Transformers' remanufactured transformers come with a 2-year warranty and typically deliver 15–25+ additional years of service.

Question 3

How long does a remanufactured transformer last?

Accepted Answer

A properly remanufactured distribution transformer can be expected to deliver an additional 15–25+ years of reliable service, comparable to the service life of a new transformer. Miami Transformers backs every remanufactured unit with a 2-year warranty against material and workmanship defects.

Question 4

How much does a remanufactured transformer cost vs a new one?

Accepted Answer

Remanufactured distribution transformers typically cost 50–70% less than equivalent new transformers. Exact savings depend on kVA rating, voltage, and configuration. The bigger savings is often time — remanufactured units deliver in 4–6 weeks vs. 30–50 weeks for new from OEM manufacturers.

Question 5

What testing is done on remanufactured transformers?

Accepted Answer

Every remanufactured transformer at Miami Transformers undergoes a full ANSI/IEEE test routine: turns ratio test (TTR), winding resistance, no-load loss test, load loss and impedance test, induced voltage test, applied potential test, insulation resistance (megger), power factor test, and oil dielectric test. Test reports ship with every unit.

Question 6

Are remanufactured transformers environmentally friendly?

Accepted Answer

Yes. Remanufacturing keeps transformer cores, tanks, and structural components in service rather than scrapping and replacing them — reducing embodied carbon, copper and steel demand, and oil disposal volumes. Miami Transformers operates under EPA compliance for oil handling and PCB management, including certified recycling pathways for components that cannot be reused.

	New	Remanufactured	Remanufactured
Cost	100%	30–50%	40–60%
Lead Time	30–50 weeks	4–6 weeks	2–4 weeks
Coil Rewind	N/A (new)	Yes, if needed	No
Tank Recondition	N/A	Yes, full	Cleaned/painted
ANSI Test Report	Yes	Yes	Sometimes
Warranty	1–5 yr	2 yr (Miami Transformers)	90 days–1 yr
Expected Service Life	25–40 yr	15–25+ yr	5–15 yr

Remanufactured Transformers, Done Right Since 1994

Why Choose a Remanufactured Transformer?

50–70% Cost Savings

4–6 Week Lead Time

2-Year Warranty

Environmentally Sound

The Miami Transformers Remanufacturing Process

Inspection & Diagnostics

Disassembly & Core/Coil Assessment

Coil Rewinding (if required)

Tank Reconditioning

Reassembly & Oil Fill

ANSI/IEEE Final Testing

Remanufactured vs. New vs. Remanufactured

What We Remanufacture

Remanufactured Transformer FAQs

Buy a Remanufactured Transformer Today