Power System Study for Protection & Coordination Project for Transmission and Distribution

Problem Definition:
The client Energy owns a massive T&D system in the Wood Buffalo region, including 260 substations and over 400KM of transmission and Distribution power lines, including over 1500 protection relays of different types and from different manufacturers. Over the years, several projects have been executed by different companies , and new substations, power lines, and loads have been added to the system, resulting in some protection setting inconsistencies.

EAMEC Scope:
- Owner’s Engineering, project management and technical review, including project scope and execution strategy development, bid document preparation, technical and commercial bid evaluation, review and approval of the proposed protection philosophy and settings, field execution consultancy and technical support.
Proposed Solution:
- To develop a new ASPEN ONLINER model for T&D systems, to create calculation sheets and relay data sheets for each relay and to review and approve the changes and implement the changes in the field.
Steps Taken:
- Phase I: DATA COLLECTION:
  1. Field Data collections(Relay settings)
  2. Engineering data collections( Data sheets, P&D drawings, SLDs, data sheets, testing results, etc.)
  3. Powerbase database update (Software and the contents)
  Phase II: ENGINEERING:
  - - Protection Philosophy and Guideline development
    - ASPEN modelling development
    - Relay setting calculations and data sheet developments, PRC standards requirements and verifications
    - Engineering Work Packages (EWP) per substation and associated Arc Flash Labels for MV and HV systems
  Phase III: IMPLEMENTATION:
  - - Implement the proposed changes into the relays in the field
    - Test the relays with the new settings
    - Close-out report and sustaining guideline
Outcomes and Benefits for the Client:
- A trustworthy and up-to-date protection database, model and guideline resulting in more reliable power systems.