OVERVIEW

The objective of power system protection is to isolate a faulty section of electrical power system from rest of the live system so that the rest portion can function satisfactorily without any severe damage due to fault current

The course covers the application and testing of electrical protection in-depth and involves a number of practical exercises and demonstrations combined with classroom theory.  A wide range of protective devices is used during the course including electromechanical, microprocessor-based and numerical relays.

Who should attend?

Electrical/Plant Engineers, Supervisors, Technicians, Electricians with responsibility for the application, commissioning and/or maintenance of electrical protective equipment used on industrial electrical power systems. This training programme requires a good foundation of electrical knowledge.

COURSE CONTENTS

DAY 1

• Introduction to power system protection
• Fuse and MCCB protection
• Current and voltage transformers
• Primary injection testing

DAY 2

• Earthling of high voltage systems
• Basic fault level calculations
• Introduction to symmetrical components
• Classification and function of relays

DAY 3

• Inverse definite minimum time (IDMT) relays
• Calculation of graded time settings for IDMT relays
• Secondary injection testing
• Directional overcurrent and earth fault protection
• Differential protection
• Numerical relays

DAY 4

• Feeder protection
• Transformer protection
• Motor protection
• Generator protection
• Bus zone protection

DAY 5

• Trip circuit supervision requirements
• Standard marking of switchgear panel wiring
• Practical exercises