Our Protective Relay Training course will benefit personnel of all levels of experience because it covers a range of complexity of relay schemes, methods of testing relays and of analyzing relay operations. We discuss system protection principles, measurement devices used for relaying, basic relay schemes used, and the most common schemes used in the field. This course provides professionals with real examples from actual system protection situations.
This Protective Relay Training course will cover relay theory and operation of modern digital types from two major North American relay manufacturers (GE Multilin and SEL), covering many types of functions such as phase, ground, negative sequence overcurrent, over and under voltage, over and under frequency, reverse power, distance and bus/transformer/line differential. Topics such as complete motor protection, fault current basics and application of fuses and circuit breakers / contactors in industrial and distribution substations, will also be covered.
Engineers who need a comprehensive understanding of the challenges and solutions for protecting electrical power systems should attend this course.
The Protective Relay Training course provides basic guidelines for relay application and settings calculation. It also reviews basic power system concepts and describes instrument transformers. This training course is designed for technicians, operators, maintenance personnel and engineers who need a comprehensive understanding of the challenges and solutions for protecting industrial power systems. This training course provides guidelines how to download and install North American relay manufacturers software packages, guidelines how to establish communication between laptop and relay as well as basic relay logic programing examples. Course provides guidelines for the relay protection application, principles and setting calculation and an overview of the principals of the relaying protection for motors, transformers, medium voltage cables, feeders, buses, generators, transmission and distribution lines, breaker failure and capacitor banks. This training course also reviews basic power system concepts and current and voltage instrument transformers. Protection requirements for industrial plants, cogeneration, and interconnection with the utility power system are explained in detail. This course covers the subject of power system protection from a practical perspective, and includes important functional aspects such as testing and coordination of protection systems. This course is designed for individuals who are involved with industries and utilities which depend on proper system protection for operational efficiency and minimizing damage to equipment.
A properly designed protection system has downstream devices (breakers/fuses/relays) should activating before upstream devices. This minimizes the portion of the system affected by a fault or other disturbance. At the substation level, feeder breakers should trip before the main. Likewise, downstream panel breakers should trip before the substation feeder supplying the panel.
Power System Protection And Coordination of various electrical equipment and apparatus requires a good understanding of phase and ground short circuit currents, detection, and safe clearing of the faulted equipment.
Large or small, each and every industrial, commercial and institutional organization needs to understand how to protect their investment in their electric power systems. To do this properly, companies need to know how to perform an electrical protection analysis of all the parts of their power system: such as analyse fault data, come up with protection settings, then get all of the components of their plant to be controlled by the operators who are responsible for integrating their power system into communication and data acquisition modes.
Students will be learn the essentials of electrical protection design, relay coordination, and fusing fundamentals, breaker fundamentals. Students will be provided with an understanding of digital protective relaying, as we go through practical examples of generator, feeder, motor, and transformer electrical protection.
Note: It will be beneficial if students will have own laptop.
The Electrical Protection Coordination Training Course:
Protective Relay Training Course Outline
SESSION 1: Power System Faults and Components of Power System Protection schemes
• Different types of faults
• Detection of faults and fault detecting relays
• Clearance of faults
• Requirements of protective relaying systems
• Modern microprocessor-based relays
• Current transformers
• Voltage transformers
• Various types of CTs, VTs and CVTs
• Application requirements of CTs for protective relaying
• Accuracy classifications of CTs and VTs
• Testing of CTs and VTs
SESSION 2: Microprocessor-based relays
• North American relay manufacturers and their software needed for settings and communication
• Downloading relay manufacturers software packages
• Basic steps to establish communication with microprocessor-based relays
SESSION 3: Arc-flash protection and mitigation
• Maintenance mode
• Instantaneous overcurrent protection
• Fast bus bar protection
• Fiber optic protection
• Arc-flash mitigation
SESSION 4: Feeder Overcurrent Protection
• Protective relaying requirements for radial and looped systems
• Elements of feeder protection schemes
• High-set, low-set and inverse-timed elements
• Various types of overcurrent relays
• Relay setting criteria
• Load shedding schemes
• Testing of overcurrent protection schemes
• Microprocessor-based feeder overcurrent relays - features, application and testing
SESSION 5: Coordination of Electrical Protection Systems
• Computer software packages for protection coordination studies
• Auto-reclosing of circuit breakers
• Breaker Failure Protection
• Back-up protection
SESSION 6: Bus Protection
• Types of bus protection schemes
• Basic concept of differential protection
• High impedance relays for bus differential protection
• Low impedance relays for bus differential
• Bus bar blocking schemes
• Application to various bus configurations
• Testing of bus protection schemes
SESSION 7: Motor Protection and Starting
• Applicable motor standards
• Methods of starting
• Thermal protection
• Differential protection, phase unbalance, overcurrent
• Ground fault protection
• Transfer Schemes
• Microprocessor-based motor control and protection devices
SESSION 8: Transformer Protection
• Overcurrent and ground fault protection
• Application of differential protection to transformers
• Restricted ground fault protection
• Gas relays, pressure and gas accumulation
• Winding temperature and oil temperature devices
• Testing of transformer protection schemes
• Modern microprocessor-based multi-function relays - available functions, application and testing
SESSION 9: Generator Protection
• Differential protection
• Reverse power, 100% stator ground fault, out-of-step
• Loss of field, field ground, overexcitation, inter-turn, etc.
• Over-frequency, underfrequency, overvoltage, undervoltage
• Negative phase sequence or phase unbalance
• Voltage controlled and voltage restricted overcurrent protection
• Synchronizing systems, synchro-check relays
• Testing of generator protection schemes
• Microprocessor-based multi-function generator protection relays - available relays, application and testing
SESSION 10: Cogeneration and Non-Utility Generation (NUG) Protection
• Protection requirements for non-utility generating stations
• Requirements for the interconnection of NUGs to utility power systems
• Typical protection schemes for non-utility generators
• Low-cost microprocessor-based multi-function relays for small generators
• Testing utility tie protection schemes
SESSION 11: Transmission Line Protection
• Distance or impedance protection schemes
• Line current differential protection schemes
• Communication channel requirements between terminals
• Coordination and transfer-tripping between terminals
• Modern microprocessor-based line protection relays - available relays, features, applications and testing
Start: 8:00 a.m.
Coffee break: 10:00 a.m.
Lunch: 12:00 noon
Finish: 4:30 p.m.