Transformer for sale · JJ-HICO-345-230-2
Two HICO 138/184/230 MVA 345/34.5 kV Transformers
Two existing HICO transformers are offered for immediate requirements in J&J's November 5, 2026 package. Main ratings are 138/184/230 MVA at 345/34.5 kV, with a 13.8 kV delta tertiary. Shipment preparation and transportation are scheduled separately.
MVA rating: 138/184/230 MVA at 65 C rise
Voltage: 345/34.5 kV with 13.8 kV delta tertiary
Condition: Existing 2024 equipment; service and energization history confirmed with the selected-unit quotation
tommy@jjtransformers.com · Confirmed by J&J: 2026-11-05. Request current allocation, preparation and delivery terms. Subject to prior sale and written confirmation.
Photo availability
Public photos are not shown for this listing. Ask J&J for a current photo set and the matching technical records.
Essential transformer specifications
| Specification | Offered equipment |
|---|---|
| HV winding | 345 kV |
| LV winding | 34.5 kV |
| Tertiary winding | 13.8 kV; duty and connection per selected-unit records |
| Winding connection | Grounded Wye-Wye / Delta; reference plate YNyn0d11; drawing-title tertiary clock differs |
| Frequency | 60 Hz |
| Cooling stages | ONAN / ONAF1 / ONAF2 |
| Tap changer | HV OLTC; reference tap range 379.5-310.5 kV |
| Offered quantity | 2 units |
Request the selected unit’s nameplate, available tests and current quotation. Include your required MVA, winding voltages, operating duty, quantity and needed-on-site date.
Understand base and cooled MVA ratings · Review winding connections
Download the 345 kV existing-equipment overview (PDF)
The reference nameplate vector box reads YNyn0d11; the drawing title uses YNyn0d1. The main windings are grounded wye-wye. Request the final OEM connection record for tertiary clock acceptance and matching records for both selected units.
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