Utility-Grade Transformer Manufacturing

Utility-Grade Distribution Transformers

Pad Mount & Pole Mount | Single & Three Phase | 10 kVA – 5 MVA

Product Lines

Distribution Transformer Specifications

Engineered to IEEE C57, ANSI, and DOE 2016 standards. All ratings available with dual voltage and tap configurations.

Pole Mount Single Phase transformer

Pole Mount

Single Phase

kVA Ratings
10 through 833 kVA
Voltage Ratings
34,500 GrdY / 19,920 V (up to 170 kV BIL)
Features
Conventional, Step-down, Single/Two-bushing, GrdY
Options
Mineral Oil or Natural Ester (Vegetable Oil) fluidMild Steel or 304 Series Stainless Steel tank
Pad Mount Single Phase transformer

Pad Mount

Single Phase

kVA Ratings
15 through 833 kVA
Voltage Ratings
34,500 GrdY / 19,920 V (up to 170 kV BIL)
Features
Loop/Radial feed, Step-down, 2/4-position Loadbreak Switches, Bay-O-Net fusing
Options
Mineral Oil or Natural Ester (Vegetable Oil) fluidMild Steel or 304 Series Stainless Steel tank
Pad Mount Three Phase transformer

Pad Mount

Three Phase

kVA Ratings
45 kVA through 5 MVA
Voltage Ratings
34,500 GrdY / 19,920 V (up to 170 kV BIL)
Features
Loop/Radial feed, Step-down, 2/4-position Loadbreak Switches, Bay-O-Net fusing
Options
Mineral Oil or Natural Ester (Vegetable Oil) fluidMild Steel or 304 Series Stainless Steel tank
Distribution Transformers Power Transformers transformer

Distribution Transformers

Power Transformers

kVA Ratings
50 kVA through 10 MVA
Voltage Ratings
34,500 GrdY / 19,920 V (up to 170 kV BIL)
Features
Step-down
Options
Mineral Oil or Natural Ester (Vegetable Oil) fluidMild Steel or 304 Series Stainless Steel tank

* Lead times reflect ex-factory manufacturing, assembly, and testing completion upon final specification/drawing approval. Logistics and ocean freight options available upon request.

Engineering Notice: Final ratings and features are confirmed for each order. Additional configurations, accessories, testing, documentation, and other project-specific requirements may be available upon request and are subject to engineering review.

Built to IEEE / ANSI C57 · NEMA · DOE (2016 & 2029 Ready) | ISO 9001 · 14001 · 45001 Certified

Grid & Product Standards

IEEE C57 SeriesANSI C57NEMA StandardsDOE 2016 Compliant & 2029 Ready

Management & Quality Certifications

ISO 9001 — QualityISO 14001 — EnvironmentalISO 45001 — Health & Safety

Contact & Request a Quote

Headquarters & Manufacturing Facility

Shinseong E&T, INC. (SETI)

26-12, Seokgyo-ro, Mado-myeon,
Hwaseong-si, Gyeonggi-do,
South Korea 18537

Sales & Engineering

ss26601@setitransformers.com

Telephone / Fax

Tel: +82 31 355 2660

Fax: +82 31 355 2662

Inquiries are reviewed by our electrical engineering team within 24–48 business hours. Complex technical specifications may require additional review time.

Request a Technical Quote

Typical response within 1–2 business days

SETI - Shinseong E&T, INC.

Utility-Grade Transformers for the American Power Grid

Compliance

  • IEEE C57 Series
  • ANSI C57
  • DOE 2016 Efficiency Standards
  • ISO 9001 · 14001 · 45001

Contact

26-12, Seokgyo-ro,
Mado-myeon, Manse-gu,
Hwaseong-si, Gyeonggi-do,
South Korea 18537

© 2026 Shinseong E&T, INC. (SETI). All rights reserved.

U.S. Power Grid Market · IEEE · ANSI · DOE 2016