We have gone 3428 days since our last lost time or reportable accident
Transformer Testing & Commissioning

Winder Power can offer routine and Type Testing on all transformers. Transformer testing is undertaken at our Leeds base in our recently upgraded testing facility

Winder Power has a long history of Type Testing transformers.

Impulse tests, temperature rise tests and short circuit tests have all been carried out on a range of distribution and power transformers from 500kVA to 55MVA.

Substation Services offer a full range of on-site transformer testing and fault diagnosis including:

  • Visual conditional assessments.
  • Full range of oil sampling analysis.
  • Transformer Ratio, Vector Group and Magnetising Current Testing.
  • Insulation Resistance Testing inclusive of insulation measurements, test of windings and the transformer core.
  • Fault diagnosis and Finger-print Testing inclusive of winding resistance and Sweep Frequency Response Analysis (SFRA).
  • CT & VT Analysis.
  • Testing of all types of auxiliary protection instruments.
  • Full DNO pre-commissioning works.

Download Our Brochure

Substation Services’ main objective is to provide a specialist service team to the power engineering industry.

Our Customers Include...

Electricity generation companies
in the UK and beyond including the largest coal fired power station in Western Europe

The rail industry including
Network Rail

Distribution network operators
throughout the UK

Oil, gas, petrochemical and industrial plants throughout the world

We would be delighted to discuss your power transformer requirements


Here are just a few of our Accreditations…