The busbar differential protection function (87BB) is the main protection function to protect busbars, and It relies on Kirchhoff’s current law. This law states that the vectorial sum of all currents flowing into a closed area must be zero.
Topics related to busbar protection and how to configure and set the busbar protection parameters have been recorded.
The various types of busbar arrangements are used in the power system. The selection of bus bars is depended on different factors for instance reliability, flexibility, cost, etc.
More details about the Busbar protection training package: Click here
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Part 01 (5 min, April 14, 2022): busbar definition, busbar arrangement (Single Bus-Bar, Single Bus-Bar Arrangement with Bus Sectionalized, single bus station with the transfer bus, double bus-double breaker station, double bus-single breaker, one-and-a-half breaker station, mesh or ring bus station)
Part 02 (6 min, April 14, 2022): busbar differential protection function (87BB)
Part 03 (8 min, April 14, 2022): Protection Zone, how to analyze busbar differential protection function and simulate different cases.
Part 04 (9 min, April 19, 2022): busbar protection for the one-and-a-half breaker arrangement, double busbar system, check zone, ABB Zone operation characteristic, check zone operation, load transfer, Zone Interconnection
Part 05 (9 min, April 27, 2022): REB 670 relay, REB670 series hardware structure, function blocks BCZSPDIF and BCZTPDIF configuration and parameters
Part 06 (8 min, April 27, 2022): BUSPTRC and BUTPTRC configuration and parameters
Part 07 (10 min, April 27, 2022): Zone interconnection BZITGGIO, BZISGGIO; BZNTPDIF, BZNSPDIF or busbar zone Differential protection configuration
Part 08 (06 min, April 27, 2022): BZNTPDIF, BZNSPDIF or busbar zone Differential protection parameters, SWSGGIO 87B function block, RADSS schemes, and INX schemes
Part 09 (16 min, May 01, 2022): Sample Busbar config in PCM600 Part I
Part 10 (19 min, May 01, 2022): Sample Busbar config in PCM600 Part II
Part 11: (4 min, 18 June 2023): Review of the previous parts
Part 12: (12 min, 18 June 2023): REB670 Application templates and review SLD of a case study project
Part 13: (19 min, 18 June 2023): REB 670 Template default configuration A20-X01
Part 14: (9 min, 18 June 2023): REB670-B31-X02
Part 15: (22 min, 18 June 2023): How to select a proper template based on SLD and how to config and modify based on diagram documents
supplementary Files: To save your time, we’ve gathered critical related files/ videos and attached them to the course as additional files.
The parameter set cannot be transferred to the device.
The reason for this is that the parameter for the EN100 module has not yet been updated after changing the IEC61850 system interface. To do so, open the “update” property page of the IEC61850 station and update all parameter sets. A transfer to the device now works again.
Terms of I> mean Time delay O/C, and I>> is instantaneous O/C
problem: 1ph fault but relay give 3ph command in Siemens 7SA522
Solution: In the matrix, u can raise the signal 1ph trip permitted by AR via one BI. Normally Simense relay giving always 3ph trip
Error in Siemenslow Impedance busbar protection 7SS52 and alarm on bay units