Choose a listing and request its current offer
The comparison above shows the actual equipment records for this winding class. Keep existing equipment, submitted offers and future production separate. A listing's quantity is distinct from the quantity reserved for your order.
- ABB / Hitachi · 132/176/220 MVA · 230/34.5 kV with 13.8 kV buried-delta tertiary
- Fortune Electric · 100/133/167 MVA; 35 MVA tertiary · 230/34.5 kV with 13.3 kV buried-delta tertiary
- ABB · 40/53.3 MVA at 55 C; 44.8/59.7 MVA at 65 C · 230 kV delta / 13.8 kV grounded wye
- ABB · 60/80/100 MVA at 55 C; 67.2/89.6/112 MVA at 65 C · 230 kV to reconnectable 115 or 69 kV with 13.5 kV delta tertiary
- WEG · 53/70.5/88 MVA; 18.55/24.675/30.8 MVA tertiary · 230/34.5 kV with 13.8 kV stabilizing delta tertiary
- ILJIN Electric · 100/133/167 MVA · 230/34.5 kV; tertiary voltage to confirm
- WEG · 72/96/120 MVA · 230/34.5 kV
Choose the exact winding ratio or project quantity
Use the required main-winding voltage pair to choose equipment. For a multi-unit project, give each ratio and delivery phase its own quantity.
Prepare a 230 kV transformer buying request
Choose the actual winding arrangement before comparing 230 kV offers: 230/34.5 kV, 230/13.8 kV and a reconnectable 230/115/69 kV autotransformer serve different requirements. Send MVA, operating direction, grounding, taps and the site-delivery date with the selected configuration.
Which 230 kV transformer duties can be screened?
A 230 kV winding can appear in generator step-up, utility or industrial substation, collector step-up, and autotransformer applications. Those labels are not interchangeable: the project one-line, power flow, tertiary function, grounding, regulating duty, fault cases, protection, and owner specification determine the required design.
- GSU: match the electrical generator MVA, terminal voltage, reactive range, grounding, generator breaker arrangement, and interconnection bus.
- Substation or industrial: match normal and contingency loading, incoming and distribution voltages, LTC strategy, fault duty, protection, and physical interfaces.
- Collector step-up: match the collector system, renewable or converter duty, harmonics, reactive requirements, tertiary use, switching, and interconnection studies.
- Autotransformer: state common, series, and tertiary winding duties explicitly; do not substitute a two-winding unit by ratio alone.
How is an existing or surplus 230 kV transformer qualified?
J&J requests serial-specific identity, ownership or representation authority, final drawings, certified tests, condition and storage history, maintenance and fluid records, included accessories, current location, inspection rights, transport configuration, warranty provider, and commercial scope before treating a candidate as quote-ready.
A historical factory test report establishes results at its test date; it does not prove present condition or current availability. The purchaser and responsible engineer should maintain a requirement-versus-candidate deviation schedule and approve every open item.
Is the ABB / Hitachi 220 MVA 230/34.5 kV transformer new and unused?
Yes. The ABB / Hitachi 220 MVA, 230/34.5 kV transformer, listing JJ-230-220-1, is available, brand new, never used and never energized. It was built for a project that did not proceed. Contact Tommy Marco at 346-276-9540 or tommy@jjtransformers.com for specifications, pricing and current written availability confirmation. Subject to prior sale.
Request price, availability and delivery
Contact Tommy Marco at 346-276-9540 or tommy@jjtransformers.com. Include the listing ID if you have one, MVA, exact voltage ratio, quantity, acceptable condition, site and required delivery date. J&J serves U.S. projects nationwide from Sugar Land, Texas.
- Choose new or unused surplus, used, rebuilt or reconditioned equipment; condition is stated for the specific offered unit.
- Request photos, nameplate, drawings, available tests, included accessories and inspection terms.
- Confirm price, freight or delivered scope, loading, warranty, payment terms and the agreed delivery milestone in writing.
230 kV step-down transformer requirements
For a 230 kV step-down request, provide both source and output winding voltages, required continuous MVA, quantity and project date. Compare the candidate's actual operating-direction limits, winding connections, grounding, taps, impedance, insulation and installation interfaces. The voltage page remains a screening route; the step-down hub explains duty and quotation evidence.
Common questions
Written quotes and supporting records control unit-specific ratings, availability, condition, price, and delivery.
How do I request a transformer price and availability?
Email tommy@jjtransformers.com or call Tommy Marco at 346-276-9540. Send the listing reference or required MVA, exact winding voltages, quantity, destination and needed-on-site date. Ask for specifications, price, current allocation and delivery terms. Written confirmation is required; subject to prior sale.
Are every listing and production allocation ready to ship?
No. Existing equipment, submitted inventory and factory production allocations have different release schedules. TSEA allocations are for 2027 and are not immediately shipping stock. Ask for current written allocation, preparation requirements, included accessories and the delivery milestone for each offered unit.
Can the listed GSU be used as a step-down substation transformer?
The proposed operating direction and permitted continuous MVA must be checked against the actual unit documents. Winding connections, grounding, taps, protection and site interfaces need project engineering review; a matching voltage ratio alone does not establish acceptance.
Does a transformer offer include a complete substation?
Only equipment expressly included in the quotation is supplied. Specify the transformer, breakers, switchgear, protection, controls and site-work responsibilities separately when requesting a complete package.