NEC/NER/AUX Transformers
NEC/NER/AUX Transformers Design and Manufacture
Free State Transformers is an established designer and manufacturer of industry leading, durable NEC/NER/AUX Transformers. These quality products are manufactured to strict ESKOM / |IEC standards. Our ISO 9001:2015 certification underlines the quality of all our products.

Neutral Earthing Resistors (NER), Compensators (NEC) and compensators with Auxiliary transformers (NECRT)
Free State Transformers builds Neutral Earthing Resistors (NER), Compensators (NEC) and compensators with Auxiliary transformers (NECRT).
Product Range:
- Combined Neutral EarthingCompensator, Neutral Earthing Resistor and Auxiliary transformers (NECRT) from 3.3kV – 33kV
- Neutral Earthing Compensators (NEC) from 3.3kV – 33kV
- Neutral Earthing Resistors (NER) from 3.3kV – 33kV
- Auxiliary transformers (AUX) from 50kVA – 315kVA , 3.3kV – 33kV
Transformers comply with ESKOM / IEC standards and ISO 9001:2015
