Electrical Engineering


Commissioning Services

Our commissioning team has the knowledge and capability to install and test a large variety of Low and High Voltage plant and protection systems.  All testing is backed up by extensive reports on your equipment, giving you piece of mind that your High Voltage electrical assets are securely protected should a fault occur, while minimising any possible disruption to your supply. At STE solutions we can provide all your commissioning needs, and our capabilities include:

Commissioning and testing of primary plant, such as:

  • Circuit breakers (including timing tests)
  • Current transformers
  • Voltage transformers
  • Transformers and transformer guards
  • Disconnectors
  • Earthing switches
  • Insulation quality assessment (Tan Delta testing)
  • Primary current injection testing (Up to 800A AC)
  • Sweep frequency response analysis tests

Protection Relay testing using Omicron 3 phase test injection set including:

  • Distance protection
  • Differential protection
  • Overcurrent protection
  • Earth fault (residual) protection
  • Generator protection
  • Motor protection
  • Trip logic testing

Commissioning and testing of secondary systems including:

  • Protection schemes using Teleprotection
  • SCADA and RTU (Bay Controller) systems
  • Condition monitoring equipment
  • Wiring systems including insulation resistance testing and point to point checks
  • AC and DC supply systems including backup power supplies.