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Miami Transformers

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In Stock · 1 available

New Surplus

Power / Substation

90/120/150 MVA Power / Substation Transformer

New Surplus 90/120/150 MVA power / substation transformer, HV 115 Wye, LV 34.5 Wye, on-load tap changer (OLTC). In stock and ready to ship nationwide — vector groups, impedance, BIL, and full test reports available on request.

Ready to ship nationwide · Updated 2026-05-15

Request a Quote (305) 257-1491

Specifications

Rating	90/120/150 MVA
Cooling Stages	90/120/150 MVA (ONAN/ONAF)
Type	Power / Substation
Primary (HV)	115 Wye
Secondary (LV)	34.5 Wye
Tap Changer	On-load (OLTC)
Condition	New Surplus
Stock #	PT-1023
Quantity Available	1

Vector groups, impedance, BIL, accessories, and full ANSI test reports available on request. Stock turns over weekly — call to confirm current availability.

Fast Shipping

In-stock units crate and ship within days, nationwide and for export.

Tested & Warranted

ANSI-tested with full reports; remanufactured units carry a 2-year warranty.

Real Stock

Physically on the floor — no 30–50 week new-build lead times.

Other power & substation units in stock

Power / Substation

11.5 Delta → 3.3 Wye

Power / Substation

4.16 Delta → 480Y

111/148/185 MVA

Power / Substation

230 Wye → 13.2 Delta

Power / Substation

34.5 Delta → 4.16 Wye

Power / Substation

161 / 230 Wye → 115 Wye

Power / Substation

138 Delta → 34.5 Wye

Interested in this unit?

Same-day quotes. Confirmed PO ships in 1–5 business days.

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Miami Transformers — Nationwide Transformer Supplier Since 1994Miami Transformers is a nationwide supplier of remanufactured padmount and polemount distribution and power transformers from 25 kVA through 2500 kVA, shipping to utility, industrial, and commercial customers across the United States, the Caribbean, and South America. Family-owned since 1994, with in-house remanufacturing and ANSI-standard testing. Standard remanufactured units ship in 4 to 6 weeks; in-stock padmount and polemount inventory is available for same-week delivery, compared to 30 to 50 weeks typical for new-transformer orders.Contact Miami Transformers

Phone: (305) 257-1491

Email: info@miamitransformers.com

Main facility: 25175 SW 142nd Avenue, Homestead, FL 33032

Operations: 13935 SW 252nd Street, Homestead, FL 33032

Hours: Monday–Friday, 7:00 AM – 5:30 PM

Transformer Supply & Services

Transformer supply — remanufactured padmount and polemount units, 25 to 2500 kVA, in-stock for fast shipment to the US, Caribbean, and South America

Custom engineering and remanufacturing — tailored voltage and capacity configurations, retrofits, specialty designs

Transformer repair and rewind — coil rewinding, core repair, tank remanufacturing

Transformer testing and diagnostics — insulation resistance, turns ratio, oil analysis, dissolved gas analysis, power factor testing

Transformer rental — remanufactured units for planned outages and temporary power

Transformer decommissioning and recycling — safe oil drainage, core and coil recovery, EPA-compliant disposal

On-site field services (Florida only) — field diagnostics, oil sampling, DGA, power factor testing, insulation resistance testing, thermal imaging, and minor field repairs at customer facilities throughout Florida. Customers outside Florida ship units to our Miami shop.

Customer Reviews — 5.0 average from 6 reviews

“Best quality transformers out there!” — Lazaro Calderin (Google, May 2026)

“GREAT service. I received my transformer in just a month. Quality like New!” — Erik Trujillo Vázquez (Google, May 2026)

“Servicio muy profesional. Equipos de calidad.” — Radames Morales (Google, April 2026)

“Very quick lead time, unheard of in this industry.” — John P. (verified customer)

“The quality is like new, you cannot tell the difference.” — James A. (verified customer)

“Excellent service, fast turnaround.” — Donald F. (verified customer)

Frequently Asked Questions

What is a distribution transformer?

The final voltage step-down transformer in an electrical power distribution system. It converts medium-voltage utility power (typically 4 kV to 35 kV) down to 120/240 V or 277/480 V. Miami Transformers supplies distribution transformers from 25 kVA through 2500 kVA in padmount and polemount configurations.

What is a padmount transformer?

A ground-level distribution transformer enclosed in a locked steel cabinet mounted on a concrete pad, serving underground electrical systems for residential subdivisions, commercial buildings, shopping centers, and industrial sites.

What are remanufactured transformers?

Used transformers fully disassembled, rebuilt with new components where needed (coils rewound, core repaired, gaskets replaced, tank reconditioned), refilled with reclaimed or new oil, and tested to ANSI/IEEE standards. Miami Transformers' remanufactured units carry a 2-year warranty and cost 50–70% less than new, with 4–6 week delivery instead of 30–50 weeks.

How fast can Miami Transformers deliver?

In-stock remanufactured padmount and polemount units ship nationwide within days. Custom-spec remanufactured units deliver in 4 to 6 weeks. New transformers from OEM manufacturers typically take 30 to 50 weeks.

What kVA range is available?

25 kVA up to 2500 kVA. Common in-stock sizes: 25, 50, 75, 100, 167, 250, 333, 500, 750, 1000, 1500, 2000, and 2500 kVA, in single-phase and three-phase, padmount, polemount, and substation styles.

What certifications does Miami Transformers hold?

ISO 9001 quality management, NETA testing accreditation, NFPA 70E electrical safety, OSHA safety, and EPA environmental compliance for oil and PCB management. Family-owned and operating since 1994.

What payment methods do you accept?

Wire transfer (ACH and domestic wires) for US orders, and wire transfer (T/T) or irrevocable letters of credit (LC) confirmed by a US bank for international orders. We do not accept credit cards.