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PSPT is an ASIC (Australian Securities and Investment Commission) registered partnership, focusing specifically on the provision of professional development seminars in the discipline of Power System Protection.

While this seminar is specifcally designed to meet the learning needs of newer protection engineers and technicians, it will also provide a valuable, comprehensive and in-depth understanding of the fundamental principles of power system protection design to meet the requirements of more experienced participants.

Know About Your Trainer

Our trainer also has extensive experience with the protection of large generating plants having had responsibility for the protection of generators at many of Queensland’s major power stations. From 2000 to 2007, Our trainer filled the role of Senior Engineer Protection Design, with statewide responsibility, leading Powerlink’s Protection Design Team. From 2007 to 2012, in the role of Principal Consultant Substation Protection, and then Principal Engineer Investigations, Our trainer provided specialist Protection Design and Fault Analysis services to support the Asset Management and Operational Groups within Powerlink.

Why Should You Attend This Training

THIS SEMINAR HAS BEEN SPECIFICALLY PREPARE TO MEET THE REQUIREMENTS OF:

• Protection Design Engineers, to identify protection implications and to ensure design, coordination and relay setting principles provide the necessary levels of speed, security, dependability and safety.
• Field Technicians, to understand the importance of their role in installing, testing and maintaining effective, reliable, dependable and secure protection systems.
• Circuitry Design Engineers, to ensure that protective schemes are implemented in a manner to provide optimum performance.
• Commissioning Engineers, to ensure the actual field installation of the protection scheme and associated relay settings does meet the design requirements.
• Maintenance Engineers, to ensure that power system protection is not compromised as plant is removed from service during maintenance.
• Planning Engineers, to identify the difficulties in providing protection for various power system configurations under review.
• Project Managers, to ensure the project execution process optimises coordination between protection design and the overall project implementation

DAY ONE

FUNDAMENTAL CONCEPTS OF POWER SYSTEM PROTECTION

• Reliability,Reliability, Dependability and Security
• Redundancy & Duplication
• Energy Market Requirements
• Zones of Protection
• Unit and Non-Unit Schemes
• Local & Remote Back up Schemes
• CB Fail and Blind Spot Protection

FAULT CALCULATIONS & SEQUENCE COMPONENTS

• Basic Considerations for 1, 2 & 3 Phase Faults
• Classical Fault Study
• Introduction to Sequence Components
• Sequence Components and Transformer Protection

FUSES, OVER CURRENT & EARTH FAULT PROTECTION

• Fuses
• IDMT Over Current Relays
• Time & Current Discrimination
• Relay Characteristics to IEC60255
• Coordination Procedure
• Parallel Elements and OC Protection Grading
• Earth Fault Protection

VOLTAGE AND CURRENT TRANSFORMERS

• IEC60044 Specification of VTs
• Capacitor VTs
• Transient Performance of VTs & CVTs
• Class P & PX CTs to IEC60044
• Transient Performance of CT

INTRODUCTION TO DISTANCE PROTECTION

• Relay Zones of Operation
• Phase Angle Comparators
• Mho and Quadrilateral Characteristics

INTRODUCTION TO PROTECTION SIGNALLING

• Distance Relay Permissive Schemes
• Distance Relay Blocking Schemes
• Direct and Series Intertripping

DAY TWO

INTRODUCTION TO HIGH IMPEDANCE DIFFERENTIALPROTECTION

• Stability for external falts
• Operation during in-zone faults

INTRODUCTION TO TRANSFORMER PROTECTION

• Buchholz and Pressure Relief Devices
• Biased Differential Protection
• Inrush and Magnetising Currents
• CT Connections for Phase Correction
• CT Connections for Neutral Current Compensation
• Microprocessor Based Relay Applications

INTRODUCTION TO LOW IMPEDANCE BUSBAR DIFFERENTIAL PROTECTION

• Multiple Bus Zones
• Dynamically Switched Bus Zones
• Bus Zone CB Fail Schemes

INTRODUCTION TO FEEDER DIFFERENTIAL PROTECTION

• Pilot Wire Protection
• Summation Transformer Techniques
• Current Differential Protection
• Data Synchronisation
• Alpha Plane Philosophy
• Communication Schemes with Redundancy and/or Backup Features

INTRODUCTION TO AC SYNCHRONOUS GENERATOR PROTECTION

•Generator Faults
• Generator Differential Protection
• Stator E/F Protection
• Rotor E/F Protection
• Generator and Power System Events
• Stator Overload Protection
• Negative Phase Sequence Protection
• Over Voltage and Over Excitation
• Protection
• Under Excitation Protection
• Reverse Power Protection
• Under and Over Frequency Protection
• Out of Step Protection

DAY THREE

ADVANCED APPLICATIONS OF DISTANCE PROTECTION

• Mutual Coupling

• Teed Feeders

   DIT, PUTT, POTT and Blocking Applications

• Zone 3 Back-up Considerations

• Fault Resistance

• VT Supervision

• Polarizing for Close-in Faults and SOTF Logic

• Power Swing Blocking

HIGH IMPEDANCE DIFFERENTIAL PROTECTION

•HZ Differential Protection Principles

• Setting Principles Setting Voltage for Through Fault  Stability CT Requirements for In-Zone Fault Detection

• Current Operated Relays with Stabilising Resistors

• Limiting Secondary System Voltages Safely

• Primary Operating Current Application of Shunt Resistors

• CT Supervision Requirements

• High Impedance Differential Protection for other Galvanically Connected Plant


TRANSFORMER PROTECTION

• Buchholz and Pressure Relief Devices

• Bias Differential Basic Principles

• Stability under Magnetising Inrush Conditions

• Stability under Over Excitation Conditions

• Stability with Transformer Phase Shifts

• Stability under through Earth Fault Conditions

• Determination of Delta CT Connection

• Delta / Star Transformer Example

 

DAY FOUR

TRANSFORMER PROTECTION (CONTINUED)

• Determination of CT Ratios
• Micro Processor Relay Implications
• Un-Restrained Instantaneous Elements
• Winding Neutral End Faults Restricted Earth Fault   Protection
• Zig-Zag Earthing Transformers
• Neutral Displacement Protection

 

LOW IMPEDANCE BUSBAR DIFFERENTIAL PROTECTION

• Determination of CT Ratios
• Central and Bay Unit Designs
• Features to Accommodate Poor Quality CTs
• Multiple Zone Applications
• Allowance for Dynamic Switching of Plant
• Voltage and Check Zone Interlocking
• CB Fail and CB Fail Bus Trip Facilities
• Blind Spot Fault Facilities
• Multi Functionality

FEEDER DIGITAL CURRENT DIFFERENTIAL PROTECTION

• Data Synchronisation
• Conventional Biased Differential Systems
• Alpha Plane Systems
• 2, 3 and Multi Ended Systems
• Intertripping Schemes
• Back-Up Distance Relay Functionality

 

DAY FIVE

GENERATOR PROTECTION – GENERATOR FAULTS

• Biased Differential and High Impedance Differential   Protection Schemes
• Voltage Displacement Protection
• Stator Earth Fault Protection (100%, 95%, REF and 3rd   harmonic schemes)
• Stator Interturn Protection
• Rotor Earth Fault Protection

 

 

 

 

GENERATOR PROTECTION – GENERATOR EVENTS


• Stator Overload Protection
• Negative Phase Sequence (NPS) Protection
• Over Voltage and Over Excitation Protection
• Under Excitation Protection
• Reverse Power Protection
• Under and Over Frequency Protection
• Out of Step Protection
• Embedded Generator Islanding Protection

CONCLUSION

• Presentation of Certificates
• Wrap-up

SEND US YOUR QUERY

PSPT is an ASIC (Australian Securities and Investment Commission) registered partnership, focusing specifically on the provision of professional development seminars in the discipline of Power System Protection.

While this seminar is specifcally designed to meet the learning needs of newer protection engineers and technicians, it will also provide a valuable, comprehensive and in-depth understanding of the fundamental principles of power system protection design to meet the requirements of more experienced participants.