Sell a 3000 kVA transformer in Texas
We buy single transformers and whole lots, any brand, including units still in their crates and equipment removed from service. A 3000 kVA rating equals 3 MVA; both describe apparent power capacity, not the transformer's physical size or its actual operating load.
Our yard and office are at 6402 McGrew St, Houston, TX 77087, and we buy statewide across Texas. Whether your equipment is at a plant, construction site, utility yard or oilfield facility, start with photos and its location. We coordinate trucking and pickup with the seller.
If you need a 3000 kVA (3 MVA) transformer buyer, send the complete equipment details rather than just the capacity rating. Voltage, construction, condition and included components help establish what you have and how it could fit another installation.
| Voltage | Full-load amps | Typical role |
|---|---|---|
| 480 V | 3,608 A | Low-voltage secondary |
| 600 V | 2,887 A | Low-voltage secondary |
| 4,160 V | 416 A | Medium-voltage secondary |
| 12,470 V | 139 A | Distribution primary / secondary |
| 13,800 V | 126 A | Distribution primary / secondary |
| 24,940 V | 69 A | Distribution primary / secondary |
| 34,500 V | 50 A | Distribution primary / secondary |
Check any rating with the kVA to amps calculator.
Common configurations and Texas applications
At this capacity, equipment commonly takes the form of a three-phase padmount, unit substation or substation transformer. A padmount generally has an enclosed cabinet with cable compartments and sits on a prepared pad. Our padmount transformer buying page covers this equipment category.
A unit substation combines a transformer with associated incoming or outgoing electrical equipment. Include photos of attached switches, connections and switchgear when offering one. See our unit substation buying information for equipment sold as an assembly.
Other units have exposed bushings or arrangements intended for a restricted-access electrical installation. See our substation transformer buying page for this equipment category. Texas applications for this capacity include data centers, crypto mining, industrial plants and solar projects, although each installation has different voltage and protection requirements.
Voltage combinations and full-load amps
Common combinations include 12,470 V or 13,800 V primary with 480Y/277 V secondary, and 24,940 V or 34,500 V primary with a lower-voltage secondary. Primary voltage describes the supply side; secondary voltage describes the output side. Some industrial installations use a 4,160 V secondary instead of low-voltage service.
The Y in 480Y/277 V identifies a wye-connected winding, with 480 V between phases and 277 V from phase to neutral. Do not infer the connection from capacity alone. Buyers also need the actual winding connections and available taps, which are selectable settings used to adjust the voltage ratio.
For three-phase equipment, full-load current equals kVA × 1000 ÷ (1.732 × volts). At 3000 kVA, that is approximately 3,608 A at 480 V, 416 A at 4,160 V, 139 A at 12,470 V and 126 A at 13,800 V. At 24,940 V and 34,500 V, it is approximately 69 A and 50 A.
Use the table below or the transformer kVA-to-amps calculator to check a voltage. Buyers care because current affects compatibility with cables, bus connections and switchgear. These figures describe rated full-load current, not fault current or the load the transformer actually carried.
What affects value and demand at 3 MVA
A used 3000 kVA (3 MVA) transformer is evaluated by its electrical fit, condition, completeness and handling requirements. Common voltage combinations can suit more potential installations, while unusual voltages or connection arrangements may narrow the options. Age alone does not describe a unit's condition.
Demand for this size comes from projects needing substantial three-phase capacity without moving to a much larger transformer. Industrial expansions, computing facilities and generation projects can create potential uses, but demand depends on matching the equipment to a project's specifications. Capacity alone does not establish an offer.
Working equipment, unused surplus and failed units require different assessments. If you are selling after a fault, describe what happened and provide any available test reports. Note damaged bushings, leaks, missing doors, removed cables or missing accessories, rather than describing every retired unit as ready for service.
Available oil test records can also help. DGA, or dissolved gas analysis, measures gases in insulating oil that can indicate internal problems. Include any records identifying PCB, or polychlorinated biphenyl, content, along with service history and storage conditions.
Nameplate details and photos to send
For 3000 kVA (3 MVA) transformer specs, a readable nameplate is the best starting point. Photograph it straight on and close enough to read every field. Our guide to reading a transformer nameplate explains where to find the key ratings.
Send overall views of every accessible side, cable compartments and accessories, without opening energized equipment. Include the quantity, location, condition and whether the unit is installed, disconnected or stored. Helpful details include:
- Manufacturer, serial number, manufacture date and rated capacity, including any separate cooling-stage ratings.
- Primary and secondary voltages, winding connections, tap settings and frequency.
- Impedance, the percentage rating describing opposition to current that helps determine fault-current behavior.
- Cooling designation, such as ONAN/ONAF: oil natural, air natural cooling versus oil natural, air forced cooling with fans.
- Cabinet and connection arrangement, including dead-front insulated connections or loop-feed connections that allow incoming and outgoing feeder cables.
- Listed weights, insulating-fluid information, included accessories and any available inspection or electrical test records.
Weight, rigging and trailer planning
Moving a 3 MVA transformer requires planning around the actual equipment, not an assumed weight for its capacity. The nameplate lists exact weights; photograph those fields and identify whether the listed figure applies to the assembled unit or a particular shipping configuration. Share any available drawings as well.
Access can matter as much as the unit itself. Show the loading area, approach road, overhead obstructions, gates and nearby structures. Tell us whether the transformer is on a pad, inside a building or attached to other equipment, and whether lifting points are accessible.
Rigging and trailer selection depend on weight, dimensions, lifting provisions, loading method and route requirements. Disconnection and de-energizing stay with the seller or the seller's qualified electrical contractor. We coordinate freight and load-out with the seller; price, payment terms and pickup details are agreed in writing before anything is loaded.
Get an offer for your 3000 kVA transformer
Ready to sell a 3000 kVA transformer? Call or text (951) 403-5738, email Industrial832@gmail.com, or send your transformer details for an offer. Include the nameplate photo, overall photos, quantity, location and condition in your first message.
For a 3000 kVA (3 MVA) transformer in Texas, describe any site access restrictions and whether other equipment is included in the sale. We evaluate the details and respond with an offer. Clear photos and a complete description give us a better basis for discussing the equipment and planning pickup.
Frequently asked questions
Is a 3 MVA transformer the same capacity as 3000 kVA?
Yes. One MVA equals 1000 kVA, so 3 MVA equals 3000 kVA. Check whether that rating is the base capacity or a higher capacity available with additional cooling.
Can I sell a 3000 kVA transformer that has failed?
Yes, we buy failed units as well as working and surplus equipment. Send photos, the nameplate and a description of the failure, including any available test results.
Does a 3000 kVA transformer always supply 3,608 amps?
No. Approximately 3,608 A applies at 480 V for three-phase full-load operation. At higher voltages, rated current is lower. The actual operating current depends on the connected load.
Should I include the switchgear with a 3 MVA unit substation?
Tell us what is available and photograph the complete assembly. Identify which components belong to the sale so the equipment assessment and load-out plan reflect the actual lot.
Can you arrange pickup outside Houston?
Yes. We buy transformers statewide across Texas and coordinate trucking and pickup. Send the site location, access photos and nameplate weights so handling requirements can be assessed.