Course Details
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Course Description
The continuity of the electrical power supply is very important to consumers especially in the industrial sector. Protection relays are used in power systems to maximize continuity of supply and are found in both small and large power systems from generation, through transmission, distribution and utilization of the power. A good understanding of their application, operation and maintenance is critical for operating and maintenance personnel.
The Training Course Will Highlight ?
In this course, you will cover a thorough understanding of the capabilities of power system protection relays and how they fit into the overall distribution network. It will also cover the calculation of fault currents, selection of appropriate relays and relay coordination as well as configuring and setting of some of the commonly used types of protection relays used in industry. The strengths and weaknesses of the latest microprocessor (or numerical) relays as compared to the older electromechanical relays will be outlined. You will also gain a solid appreciation of how the modern relay communicates not only to the central SCADA system but also between them resulting in a truly multifunctional system which includes protection, control and monitoring. Finally, you will gain a solid understanding of issues of reliability and security for the modern relay
Training Objective
In this course, you will cover a thorough understanding of the capabilities of power system protection relays and how they fit into the overall distribution network. It will also cover the calculation of fault currents, selection of appropriate relays and relay coordination as well as configuring and setting of some of the commonly used types of protection relays used in industry. The strengths and weaknesses of the latest microprocessor (or numerical) relays as compared to the older electromechanical relays will be outlined. You will also gain a solid appreciation of how the modern relay communicates not only to the central SCADA system but also between them resulting in a truly multifunctional system which includes protection, control and monitoring. Finally, you will gain a solid understanding of issues of reliability and security for the modern relay
Target Audience
Electrical engineers and technicians, electrical maintenance engineers, technicians and supervisors, electricians, field and service technicians, instrumentation engineers and technicians, design engineers, plant operators, project engineers, managers, engineers and technicians
Training Methods
This interactive Training will be highly interactive, with opportunities to advance your opinions and ideas and will include;
- Lectures
- Workshop & Work Presentation
- Case Studies and Practical Exercise
- Videos and General Discussions
Daily Agenda
Basics of Power System Protection
- Requirements of protection in an electrical system
- Reliability, dependability and security
- Types of faults, Evaluation of short circuit currents
- Fault calculations in simple circuits
- Earth faults and role of system earthing
- Characteristics of protective relaying
- Sensitivity, selectivity, stability and speed
- Protection using fuses
- Protective relay/release and circuit breaker combination
- Instrument transformers and their application in protection systems
Relays and Their Development
- Types of protective relays (DMT and IDMT)
- Electromechanical and static relays
- Microprocessor and numerical relays
- IDMT characteristics expressed as a mathematical function
- Comparison of electromechanical/ static and numerical relays
- Key features: Flexibility/reliability/communications/SCADA interface
- Cost, Integrated protection and control
Protection Coordination
- Time and current grading, Application of time and current grading
- Grading using IDMTL characteristics, Better grading through numerical relays
Typical Block Diagram of Numerical Protection Relay
- Typical block diagram, Hardware and software architecture
- Sampling interval, Extension of capabilities of relays in numerical design
- From individual protection relays to a complete protection management system
- Structure of the Intelligent Electronic Device (IED)
- Configuring substation automation using IEDs
Types of Numerical Protection Systems and Principles
- Functional protection relays, Equipment protection systems with multiple functions
Configuration of Numerical Relays
- Setting approach in conventional relays, Configuring numerical relays
- Configuration security through passwords
- Protection settings as a part of configuration
- Methods adopted for setting numerical relays
Communication Aspects of Numerical Protection Devices
- Setting up a substation automation system using the communication capability of numerical relays
- Problems of compatibility between vendors, DNP3 communication standard
- The new substation standard IEC 61850, Logical grouping of functions
- Intercommunication using GOOSE, Using IEC with Unified Modelling Language (UML)
Accreditation
BTS attendance certificate will be issued to all attendees completing a minimum of 80% of the total course duration.
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