Free State Transformers

22/09/2026

27/08/2026

READY FOR IMMEDIATE DELIVERY ⚡
​Need high-quality transformers without the long manufacturing lead times? Free State Transformers has stock available right now!

​Whether you are expanding operations, upgrading current electrical infrastructure, or need an urgent replacement, we have units ready to go.

​Why choose Free State Transformers?
​Premium quality manufacturing & reliability.
​Zero long waiting periods — stock ready for dispatch.
​Trusted service tailored to your power requirements.

​📩 Get in touch today for specs, pricing, and availability:
​[email protected]
(+27) 82 822 3760
​

​

Transformer Design & Manufacturing
Transformer Repairs
Transformer Field Services
Miniature Substat

21/08/2026

Free State Transformers backing the bokke this weekend 😁💪🏉

12/04/2026

⚡ Did you know?
Many transformer failures are caused by incorrect sizing or poor manufacturing quality, not the load itself.
That’s why selecting the right transformer and working with reliable manufacturers is critical for long-term performance.
We specialize in custom-built transformers and miniature substations, manufactured locally with SABS-approved standards.
Reliable power starts with the right design.

📢 If you are planning a project, need guidance or a quotation? Message me, I'd be happy to help.

Bernadette Opperman
+27 82 822 3760
[email protected]

19/01/2026

Transformer Design & Manufacturing
Transformer Repairs
Transformer Field Services
Miniature Substat

15/12/2025

STOCK Available: | DEC 2025

Open Bushings Al Windings:
1 x 16kVA/11/420
4 x 25kVA/11/420
2 x 25kVA/22/420
6 x 25k/33kV/420

1 x 50kVA/6.6&11/420
1 x 50kVA/6.6/420

5 x 50kVA/11/420
3 x 50kVA/22/420
14 x 50/33/420

With Cable boxes:
1 x 50kVA/525/400
1 x 100kVA/525/400
1 x 250kVA/525/400

1 x 100kVA/6.6/420
5 x 100kVA/11/420
6 x 100kVA/22/420
6 x 100kVA/33/420

3 x 160kVA/33/420

5 x 200kVA/11/420
2 x 200kVA/22/420
5 x 200kVA/33/420
3 x 250kVA/33/420

5 x 315kVA/11/420
5 x 315kVA/22/420
3 x 315kVA/33/420

With Cable boxes:
4 x 500kVA/11/420
5 x 630kVA/11/420
2 x 800kVA/11/420
1 x 1000kVA/11/420

1 x 1600kVA/11/420
2 x 2500kVA/11/420

*Minisub Stations:*
2 x 500kVA/11/420 | Cu Windings

1 x 630kVA/11/420 | Al Windings

*NEC/NER*
1 x 360A/11kV / Sold

*NEC/NER/Aux*
1 x 360A/11kV/100kVA

*Intermediate Voltage Transformers:*
Al Windings:

1 x 5kVA/3.3kV YY

2 x 10kVA/1kV YY

4 x 16kVA/3.3 YY
2 x 16kVA /1kV Dyn11

2 x 25kVA/1kV YY
1 x 25kVA/3.3kV YNd1
2 x 25kVA/3.3kV Dyn11

1 x 35kVA /3.3 Dyn11
1 x 35kVA/3.3 YY

1 x 50kVA/3.3kV YY
1 x 50kVA/3.3kV Dyn11

2 x 75kVA/3.3kV Dyn11

2 x 100kVA /3.3kV YY
2 x 100kVA/3.3kV YNd1

1 x 150kVA/3.3kV YY

1 x 200kVA/3.3kV Dyn11
1 x 200kVA /3.3kV YNd1

● PLEASE CONFIRM AVAILABILITY

Bernadette Opperman
[email protected]
Free State Transformers