- Course 147.
- 1 Week.
- 2.4 CEU.
The goal of protective device coordination is to allow for normal equipment operation, ensure circuits open before equipment is damaged and limit outages to the smallest area through selectivity.

These studies are used to verify correct equipment ratings and settings as well as assist in the selection of new equipment. A properly coordinated power system can prevent equipment damage and lost productivity.
The course will be covering:
• Evaluate a protection system for reliability, selectivity, speed, simplicity and economics.
• Utilize SKM to create and modify one-line drawings and time current curves (TCCs).
• Interpret TCCs and damage curves.
• Explain the application of directional, impedance (distance), differential, carrier,
pilot wire, under-frequency and ground overcurrent protective relays.
• Calculate CT burden impedances.
• Coordinate protective relays for ground fault and line protection using SKM PTW software.
• Identify common protection schemes for generators.
Who Should Attend
This course is intended for engineers, supervisors and relay technicians that are responsible for the protection of utility power systems. The student should have basic knowledge of power system equipment and mathematics.