Know About Your Trainer
Our trainer has served from 2007 to 2012, in the role of Principal Consultant Substation Protection, and then Principal Engineer Investigations. He has provided specialist Protection Design and Fault Analysis services to support the Asset Management and Operational Groups within Powerlink.
He has 25 year’s experience within Australia and internationally in the provision of university post-graduate training on the design and implementation of HV and EHV Transmission Protection Systems and Power Station Generator Protection Systems. He has also presented a number of papers on various specialized aspects of protection design at conferences both within Australia and internationally. Barrie represented Powerlink on CIGRE committee APB5, “Power System Protection and Automation”, and served as a corresponding member on Cigre and IEE working groups on Protection Systems.
Who Should Attend This Training
Because of the progressive building block
approach, this seminar will assist:
- Both experienced and inexperienced protection design technicians and engineers.
- Those whose day to day work involves them in the application of protection design, coordination and relay setting.
- And also those in less directly associated areas of power system protection design. This seminar has been prepared specifically to meet the requirements.
- 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.
- Planning Engineers, to identify the difficulties in providing protection for various power system configurations under review
- Maintenance Engineers, to ensure that system protection is not compromised as primary and/or secondary system plant is removed from service during maintenance.
- Circuitry Design Engineers, to ensure that protective schemes are implemented in a manner to provide optimum performance.
- Commissioning and Project Management Engineers, to ensure the actual field installation of the protection scheme and associated relay settings meets the design requirements
What You Will Learn
DAY ONE
FUNDAMENTAL PRINCIPLES OF POWER SYSTEM PROTECTION- Dependability and Security
- Speed of Protection
- Protection Zones & Overlap
- The “ART” of Protection
- Unit Protection Principles
- Non-Unit Protection Principles
- Redundancy and Duplication of protection
- Duplicate Main Protection
- Main and Local Back-up Protection
- Main and Remote Back-up Protection
- CB Fail Protection and Blind Spot Protection
- Introduction to Fault Analysis
- Per Unit Methodology
- Classical Fault Study
- Sequence Components
- Three Phase faults
- Phase – Phase Faults
- Single Phase Faults
- Resistive Earth Faults
- Transformers and Sequence Networks
- Time & Current Discrimination
- Relay Characteristics to IEC60255
- Coordination Procedure
- Instantaneous Elements
- Grading Margins
- Parallel Elements and OC Protection
- Directional Relays
- Earth Fault Protection
- Sensitive Earth Fault Protection
- Fuses
- Fuse and Relay Coordination
DAY TWO
INTRODUCTION TO DISTANCE PROTECTION- Distance Zones, Time and Reach Coordination
- Primary and Secondary Impedances
- Simple Amplitude Comparators
- Impedance Circles
- Simple Angle Comparators
- Mho Circles
- Polarizing for Close-In Faults
- Zones of Protection – Circles and Quadrilaterals
- Three Phase Load Limit Performance
- Comparator Configurations for :
- 3 Phase and Phase-Phase Faults
- Earth Faults with Ko compensation
- Permissive Under Reach Transfer Tripping (PUTT)
- Permissive Over Reach Transfer Tripping (POTT)
- Blocking Intertripping
- DEF Intertripping
- PLC systems
- 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
- Limiting HZ Protection Scheme Secondary System Voltages Safely
- Primary Operating Current
- Application of Shunt Resistors
- Bus Zone Protection Check Systems
- CT Supervision Requirements
- High Impedance Differential Protection Schemes for other Galvanically (Electrically) Connected Plant
DAY THREE
FEEDER DIGITAL CURREN DIFFERENTIAL PROTECTION- Data Synchronisation
- Conventional Biased Differential Systems
- Alpha Plane Systems
- 2, 3 and Multi Ended Systems
- Intertripping Schemes
- Back-Up Distance Relay Functionality/li>
- Dead Time and Reclaim Time
- EHV Single and Three Pole Schemes
- Master/Slave Synchronism and Voltage Checks
- Distribution System Auto Reclosing
- Auto Reclosing Safety Considerations
- Over Current Protection and In-Rush Current Considerations
- Capacitor Can, Bank Components, and Design Considerations
- Balance Protection Schemes
- Over Voltage Protection
- HZ Differential Protection Principles
- Setting Principles
- Setting Voltage for Through Fault Stability
- CT Requirements for In-Zone Fault
- Current Operated Relays with Stabilising Resistors
DAY FOUR
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
- Determination of CT Ratios
- Micro Processor Relay Implications
- Winding Neutral End Faults
- Restricted Earth Fault Protection
- Zig-Zag Earthing Transformers
- Neutral Displacement Protection
- 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
DAY FIVE (Half Day)
GENERATOR PROTECTION GENERATOR FAULTS- Generator Differential Protection Schemes
- Voltage Displacement Protection
- Stator Earth Fault Protection (100%, 95% and 3rd harmonic schemes)
- Rotor Earth Fault Protection
- 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