High Voltage Testing and Commissioning

At ADN Testing Services we have a large number of high voltage commissioning technicians and a vast array of test equipment to cater for any sized commissioning project. Our knowledge and experience on all high voltage systems are second to none with all defects and problems, repaired, redesigned / engineered immediately. All timeframes for commissioning will be kept to minimum due to our ability to identify and rectify any high voltage issues.

  • Protection relays
  • Circuit breakers
  • Bus bar
  • Potential transformers
  • Current transformers
  • Battery banks
  • Differential restricted earth fault schemes
  • Circuit breakers
  • Bus systems
  • Air break switches
  • Earthing systems
  • Potential transformers
  • Current transformers
  • Power transformers
  • Testing & commissioning
  • Assemblies
  • Oil filtration
  • Repairs
  • Online tap changer maintenance
  • DC / VLF Hi-potting
  • Tan delta
  • Insulation resistance / polarisation index
  • Phasing and conductor resistance
  • Fault locations
  • Fall of potential
  • Step and touch
  • Earth potential rise
  • Soil resistivity
  • Design and modelling
  • Online
  • Offline
  • Overhead power lines
  • Air break switch
  • Transformer connections
  • LV switchboards
  • Filling or reclamation
  • Leak detection
  • Sampling / analysis