Course description
In Overcurrent Protection Theory, you'll learn ...
- The information needed for a relay protection setting analysis
- Three methods to accomplish precise protection relay co-ordination
- What is transient overreach and how to calculate it
- Computation of phase fault overcurrent protection relay settings
Overview
Credit: 4 PDH
Length: 49 pages
Relay protection against high current was the earliest relay protection mechanism to develop. From this basic method, the graded overcurrent relay protection system, a discriminative short circuit protection, has been formulated. This should not be confused with ‘overload’ relay protection, which typically utilizes relays that function in a time related in some degree to the thermal capacity of the equipment to be protected. On the contrary, overcurrent relay protection is completely directed to the clearance of short circuits, even though with the settings typically assumed some measure of overload relay protection may be obtained.
This course is suitable for engineers with a desire to understand overcurrent protection theory. The course covers co-ordination technique, rules for time/current grading, IDMT overcurrent protection curves, grading relay-relay, fuse-fuse and fuse-relay, protection relay connections, directional protection and ground fault protection.
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Upcoming start dates
Who should attend?
Certificate of Completion
You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 35 questions. PDH credits are not awarded until the course is completed and quiz is passed.
Training content
This course teaches the following specific knowledge and skills:
- Rules for time/current grading
- IDMT overcurrent protection curves
- Grading relay-relay, fuse-fuse and fuse-relay
- Protection relay connection
- Directional protection
- Ground fault protection
Costs
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