Project Management, Engineering & Design

OES has extensive experience in the electricity transmission, distribution, generation and renewable sectors; ranging from 400V (LV) to 400kV (HV) systems. This places OES in a unique position to provide detailed investigations and studies into energy management and improved efficiency in electrical power system design and operation.

These services include:

  • Protection and control system specification and design
  • Power system design specifications including HV switchboard, HV/LV transformer, LV switchboard and battery tripping unit
  • Engineering design, testing and inspection to ensure clients electrical installations comply with appropriate legalisation
  • Analysis, design and commissioning of power system protection schemes. This includes network/plant protection philosophy document, fault level analysis for protection device selection/setting, instrument transformer selection and a protection co-ordination study.
  • Earthing system design and specification studies as per IEEE and IEC standards
  • Production of overall single line diagram and protection diagram
  • Cable sizing calculations and specifications as per IEE 17th Edition Wiring Regulation
  • Substation design and equipment layout
  • Design and analysis of electrical system integration with grid