Generator Protection Training Package

Generator Protection Training Package

Prerequisite Training packages

Generator Protection Training package

Trainer: Dr. Saeed Roostaee (Profile on Linkedin)

  • Pre-recorded videos
  • Supplementary Files
  • The course is licensed and you need a Windows computer to view the videos

Main course:

Part A: Introduction, review of generator construction and protection

GA 01 (10 min): cylindrical and salient pole rotors, generator connections, normal Operation, abnormal Conditions, why generator protection, function of a protection System, generator grounding techniques, fault Current Behavior of a synchronous generator

GA 02 (12 min): stator winding faults, field winding or rotor circuit faults, abnormal operating conditions, the object of the protection system, generator protective relaying technology, multifunction generator protection systems (MGPS), numerical relays, generator ANSI codes, IEEE Recommendations for different Generator protection functions, an overview of different generator relays from different manufactures (ABB, Schneider, SEL, Siemens), stator winding faults, field winding or rotor circuit faults, abnormal operating conditions, the object of the protection system, generator protective relaying technology, multifunction generator protection systems (MGPS), numerical relays, generator ANSI codes, IEEE Recommendations for different Generator protection functions, an overview of different generator relays from different manufactures (ABB, Schneider, SEL, Siemens)

GA 03 (08 min): review REG 670 relay, the hardware structure of REG670, rearview and front view of REG670, main protection functions, backup protection functions, control & monitoring functions, REG670 templates (A20, B30, C30)

GA 04 (18 min): REG670 configuration (online, offline)

GA 05 (17 min): REG670 configuration (online, offline)

GA 06 (10 min): injecting signals and monitoring in the REG670 signal monitoring, config binary outputs

GA 08 (22 min): config and testing of the inverse time overcurrent in REG670

GA 09 (23 min): config and settings of the directional overcurrent in REG670

GA 10 (06 min): testing of the dirrectional directional in REG670

GA 11 (10 min): theory of operation of synchronous AC Generator, typical generation systems, grounding strategies

Part B Subjects (17 min): Generator differential protection

  • Review of the generator protection functions in Single line diagram
  • Principal of differential protection function
  • Configurations and parameters of the generator differential protection block

Part C Subjects (20 min): Generator stator earth fault protection

  • GC 01: why stator earth fault protection, 59N, 27TN, 100% stator earth fault protection
  • GC 02: stator earth fault protection
  • GC 03: Configuration and parameter settings of the 100 stator earth fault function block

Part D (30 min): Generator Under excitation / Loss-of -Excitation (ANSI 40 ) protection

  • GD 01: The reason for loss of field, generator capability curve, end region heating, steady-state stability limit, under excitation limiter
  • GD 02: Generator Capability Curve
  • GD 03: PQ plane and RX plane
  • GD 04: Impact of the generator loss of excitation
  • GD 05: generator loss of excitation protection
  • GD 06: Configuration and parameter settings of the loss of excitation function block

Part E (47 min): Generator Out of Step Protection (Pole Slip)

  • GE 01: generator loses synchronism or Out of-step or pole slip definition
  • GE 02: generator pole slip
  • GE 03: generator pole slip protection
  • GE 04: Configuration and parameter settings of the pole slip function block

Part F (14 min): Generator negative sequence protection

  • Negative Sequence Protection (46)
  • Continuous and short-time unbalanced current capabilities

Part G (12 min): Generator low forward and Reverse Power (Anti-Motoring or Loss of Prime Mover protection)

  • potential damages for each generator type

Part H (09 min): Generator Over-Under Frequency and Generator under-voltage protection

  • GH 01: Over-Under Frequency (81U, 81O)
  • GH 02: under-voltage protection (27, 59G)

REG670 excel spreadsheets (Revision01): Helpful excel file to set the REG670 parameters ( Update Feb 02, 2022 )

  • Coordination of generator protection with generator excitation control and generator capability (.pdf)
  • Impact of excitation system on power system stability (.pdf)
  • Investigation on Generator Loss of Excitation Protection in Generator Protection Coordination (.pdf)
  • Generator capability curve (.pdf)
  • Impact of leading power factor loads on synchronous alternators (.pdf)
  • Synchronous Machines (.pdf)
  • Synchronous Generator Characteristics Curve (.pdf)

This training course will be updated over time. If you like to take this course, please register faster because the price of this course will increase over time.

Emails: info@elec-engg.com / saeed61850@gmail.com WhatsApp:  +989129613659 / +917303437524

Supplementary pdf files you get:

  1. Synchronous generator protection
  2. Underimpedance protection ANSI 21B
  3. Generator Overfluxing protection ANSI 24
  4. Generator Loss of field protection ANSI 40
  5. Inadvertent energization protection ANSI 50/27
  6. 100% stator earth fault protection ANSI 64G
  7. Generator Pole slip protection ANSI 78PS
  8. ABB generator protection e-book
  9. Areva generator protection e-book
  10. Protection against loss of excitation in generators
  11. Loss-of-excitation Protection for Synchronous Generators
  12. Application of Out-of-Step Blocking and Tripping Relays
  13. Generating Station Protection
  14. IEEE Guide for AC Generator Protection
  15. Standard PRC Generator Frequency and Voltage Protective Relay Settings
  16. REG216 Manual
  17. REG316 Manual
  18. Generator protection relay setting calculations
  19. Generator protection
  20. Protection of Synchronous Generators
  21. IEEE Guide for Abnormal Frequency Protection for Power Generating Plants
  22. IEEE Guide for AC Generator Protection
  23. IEEE Guide for Generator Ground Protection
  24. IEEE Guide for AC Generator Protection
  25. A-C GENERATOR AND MOTOR PROTECTION
  26. SIPROTEC Multi-Functional Generator Protection Relay 7UM61
  27. SEL-300G Generator Relay
  28. SEL-700G Family of Generator and Intertie Protection Relays
  29. G60 Generator Protection System
  30. Generator protection REG670
  31. Sepam 2000 Generator
  32. Generator Data Sheet
  33. CT Performance in Differential Relay Circuits
  34. Dynamic and Steady-State Stability Limits
  35. Swing Impedance Locus Calculation Using Excel
  36. Generator Shaft Torsional Transients
  37. Generator Normal Operations
  38. Generator Short Circuit Calculations
  39. Generator Differential Relay: 87G
  40. Backup Fault Protection
  41. Generator Ground Fault Protection
  42. Unbalanced Current Protection
  43. Motoring Protection
  44. Overexcitation
  45. Abnormal Frequency Protection
  46. Minimum Excitation Limiter
  47. Loss of Synchronism
  48. Loss of Field Protection
  49. Synchronization Protection
  50. Accidental Energization Protection

Attached PDF files

  • Std. 242: Buff Book
  • C37.102: IEEE Guide for Generator Protection
  • C37.101: IEEE Guide for AC Generator Ground Protection
  • C37.106: IEEE Guide for Abnormal Frequency Protection for Power Generating Plants
  1. Investigate on Generator Loss of Excitation Protection in Generator Protection Coordination
  2. Generator capability curve
  3. Impact of leading power factor loads on synchronous alternators
  4. Synchronous Machines
  5. Synchronous Generator Characteristics Curve
  • 87G Generator Differential Protection
  • 87T GSU Trans. Differential Protection
  • 87GT Overall Differential Protection
  • 40G Generator Field Failure Protection
  • 78G Generator Pole Slipping Protection
  • 50S, Generator Split phase overcurrent protection
  • 46 Generator Negative Phase Sequence Protection
  • 51V Generator Voltage-Dependent O/C Protection
  • 49S Generator Stator Overload Protection
  • 59G Generator Overvoltage Protection
  • 21G Generator Underimpedance Protection
  • 27G Generator Undervoltage Protection
  • 32R Generator Reverse Power Protection
  • 64S Generator 95% & 100% Stator Earth Fault Protection
  • 51/27 Generator Dead Machine Protection
  • 64GB Generator Busbar Earth Fault Protection
  • 64R Generator Rotor Earth Fault Protection
  • 81O Generator Overfrequency Protection
  • 81U Generator Underfrequency Protection
  • 24G Generator Overflux Protection
  • 47G Generator Fuse Failure Supervision
  • 50/51ET Excitation Trans. Overcurrent Protection
  • 49ET Excitation Trans. Overload Protection
  • 51N-GSU Gen. Step-up Trans. Neutral Point OvercurrentProtection
  • 64T GSU Trans. Restricted Earth Fault Protection
  • 50/51T GSU Trans. Over Current Protection
  • 50/51SST Station Service Trans. Over Current Protection
  • …..

WHY GENERATOR PROTECTION?

  • Unnecessary tripping of Generators is undesirable (production losses)
  • Generator differential
  • Transformer differential
  • Four-step overcurrent protection (DFT based measurement)
  • Four-step residual overcurrent protection
  • Over/under voltage protection (DFT based measurement)
  • Residual overvoltage protection
  • Overexcitation protection
  • General current and voltage protection
  • Directional over/under power function
  • 21P Phase distance backup
  • 51N Neutral time overcurrent
  • 24 Volts per hertz
  • 59N Neutral overvoltage
  • 25 Synchrocheck
  • 59P Phase overvoltage
  • 27P Phase Undervoltage
  • 59X Auxiliary overvoltage
  • 27TN Third harmonic neutral Undervoltage
  • 59_2 Negative-sequence overvoltage
  • 27X Auxiliary Undervoltage
  • 64F Field ground protection
  • 32 Sensitive directional power
  • 64S Sub-harmonic stator ground protection
  • 40 Loss of excitation
  • 64TN 100% stator ground
  • 46 Generator unbalance
  • 67-2 Negative-sequence directional overcurrent
  • 49 Thermal overload protection (RTD)
  • 67N Neutral directional overcurrent
  • 50BF Breaker failure
  • 67P Phase directional overcurrent
  • 50G Ground instantaneous overcurrent
  • 68 Power swing blocking
  • 50N Neutral instantaneous overcurrent
  • 78 Out-of-step protection
  • 50P Phase instantaneous overcurrent
  • 81O Overfrequency
  • 50SP Split phase protection
  • 81R Rate of change of frequency
  • 50/27 Accidental energization
  • 81U Underfrequency
  • 51G Ground time overcurrent
  • 87RGF Restricted ground fault
  • 51PV Phase time overcurrent with voltage restraint
  • 87S Stator differential

Basic Generator Protection Features

  • Ground differential
  • Sensitive restricted earth fault
  • Thermal overload
  • Negative-sequence
  • Residual-ground and neutral-ground overcurrent elements
  • Directional residual-ground
  • Overcurrent elements
  • Unbalance element
  • Voltage-controlled, voltage-restrained time-overcurrent
  • Breaker failure protection for three-pole breaker
  • Under- and overvoltage
  • Inverse-time over- and Undervoltage elements
  • Loss-of-potential element
  • Volts/hertz or overexcitation protection
  • Directional power elements
  • Loss-of-field
  • Over- and under frequency protection
  • Rate-of-change-of- frequency
  • RTD protection
Optional Generator Protection
  • Generator synchronism check
  • Synchronism-check under- and overvoltage
  • Inverse-time over- and Undervoltage
  • Out-of-step
  • vector shift
  • 100% stator ground protection
  • …..

REG670 excel spreadsheets (Revision01): Helpful excel file to set the REG670 parameters

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Protection Functions

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