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Main course:
Part A: Introduction, review the generator construction and protection
GA 01 (10 min, Dec 30, 2021): Cylindrical and salient pole rotors, generator connections, normal Operation, abnormal Conditions, generator protection, function of a protection System, generator grounding techniques, fault Current Behavior of a synchronous generator
GA 02 (12 min, Dec 30, 2021): 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, Dec 30, 2021): The review of 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, Dec 30, 2021): REG670 configuration (online, offline)
GA 05 (17 min, Dec 30, 2021): REG670 configuration (online, offline)
GA 06 (10 min, Dec 30, 2021): injecting signals and monitoring in the REG670 signal monitoring, config binary outputs
GA 07 (12 min, Dec 30, 2021): signal monitoring and troubleshooting technique
GA 08 ( 22 min, Dec 30, 2021): config and testing of the inverse time overcurrent in REG670
GA 09 (23 min, Dec 30, 2021): config and settings of the directional overcurrent in REG670
GA 10 (06 min, Dec 30, 2021): testing of the directional in REG670
GA 11 (10 min, Jan 20, 2022): theory of operation of synchronous AC Generator, typical generation systems, grounding strategies
Part B: Generator differential protection
GB 01 (04 min, Jan 08, 2022): Review of the generator protection functions in Single line diagram
GB 02 (03 min, Jan 08, 2022): Principal of differential protection function
GB 03 (10 min, Jan 08, 2022): Configurations and parameters of the generator differential protection block
GB 04 (01 min, Jan 20, 2022): phase differential element
GC 03 (06 min, Jan 20, 2022): Configuration and parameter settings of the 100 stator earth fault function block
Part D: Generator Under excitation / Loss-of -Excitation (ANSI 40 ) protection
GD 01 (03 min, Jan 20, 2022): causes of loss of field, generator capability curve, end region heating, steady-state stability limit, under excitation limiter
GD 02 (08 min, Jan 20, 2022): Generator Capability Curve
GD 03 (02 min, Jan 20, 2022): PQ plane and RX plane
GD 04 (07 min, Jan 20, 2022): Impact of the generator loss of excitation
GD 05 (04 min, Jan 20, 2022): generator loss of excitation protection
GD 06 (05 min, Jan 20, 2022): Configuration and parameter settings of the loss of excitation function block
Part E: Generator Out of Step Protection (Pole Slip)
GE 01 (01 min, Jan 20, 2022): generator loses synchronism or Out of-step or pole slip definition
GE 02 (19 min, Jan 20, 2022): generator pole slip
GE 03 (18 min, Jan 20, 2022): generator pole slip protection
GE 04 (09 min, Jan 20, 2022): Configuration and parameter settings of the pole slip function block
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
…..
Generator-transformer protection
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Cylindrical Rotor & Stator
Salient Pole Rotor & Stator
WHY GENERATOR PROTECTION?
Unnecessary tripping of Generators is undesirable (production losses, black-out, startup time)
Not tripping and damaging the machine would be expensive (to repair)
The fault current in the faulted generator does not stop when the Generator is tripped or the field breaker is tripped. The flux/energy stored in the field will continue to supply fault current for several seconds