Case Studies

Where we excel

High re-failure rate with existing supplier.

The Problem

  • Current supplier to our customer unable to meet delivery needs – Trains stopped
  • High re-failure rate with current supplier

Challenges for SET

  • Safety critical equipment with no test documentation
  • Ancient technology with little expertise remaining in Rail Sector
  • Rapid solution required


  • Equipment reverse engineered to produce technical documentation and test procedure
  • Motor-alternator set built to provide required test environment and ensure that safety critical aspects could be fully verified.
  • Weaknesses identified and overhaul programme devised


  • Reliability ‘very significantly improved’
  • SET has become the customer’s consultants on all issues regarding 158 charging

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