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Automatic synch of gen
- 1. B E C K W I T H E L E C T R I C Automatic Synchronizing of Generators Automatic Synchronizing of Generators Theory and ApplicationTheory and Application
- 2. B E C K W I T H E L E C T R I C Synchronizing An attempt to connect two alternating currents (ac) machines or systems with the following restrictions: – Frequency difference (∆F) – Voltage difference (∆V) – Phase angle difference (∆Ø)
- 3. B E C K W I T H E L E C T R I C Typical Sine Wave
- 4. B E C K W I T H E L E C T R I C Line or Source Voltage P = ES EQ--------------------------------------------------------------- XS XQ sin Φ VA VBVC
- 5. B E C K W I T H E L E C T R I C Phase at 0º P = ES EQ--------------------------------------------------------------- XS XQ sin 0º VA VBVC VA
- 6. B E C K W I T H E L E C T R I C Phase at 40º P = ES EQ--------------------------------------------------------------- XS XQ sin 40º VA VBVC VA
- 7. B E C K W I T H E L E C T R I C Phase at 80º P = ES EQ--------------------------------------------------------------- XS XQ sin 80º VA VBVC VA
- 8. B E C K W I T H E L E C T R I C Phase at 120º P = ES EQ--------------------------------------------------------------- XS XQ sin 120º VA VBVC VA
- 9. B E C K W I T H E L E C T R I C Phase at 160º P = ES EQ--------------------------------------------------------------- XS XQ sin 160º VA VBVC VA
- 10. B E C K W I T H E L E C T R I C Phase at 200º P = ES EQ--------------------------------------------------------------- XS XQ sin 200º VA VBVC VA
- 11. B E C K W I T H E L E C T R I C Phase at 240º P = ES EQ--------------------------------------------------------------- XS XQ sin 240º VA VBVC VA
- 12. B E C K W I T H E L E C T R I C Phase at 280º P = ES EQ--------------------------------------------------------------- XS XQ sin 280º VA VBVC VA
- 13. B E C K W I T H E L E C T R I C Phase at 320º P = ES EQ--------------------------------------------------------------- XS XQ sin 320º VA VBVC VA
- 14. B E C K W I T H E L E C T R I C Waveform Data Synchronizing of 5-AT-Generator
- 15. B E C K W I T H E L E C T R I C Waveform Data Synchronizing of 6 Generator at Avon
- 16. B E C K W I T H E L E C T R I C Typical Scheme Synchronizing a Generator Breaker 25A = Auto Synchronizing Relay 25SC = Sync-Check Relay 52 = Generator Breaker CC = Close Coil
- 17. B E C K W I T H E L E C T R I C Schematic of a Model System Source: IEEE Technical Paper ABC-117-2 Torsional Mechanical System Generator Excitation Transmission Transformer Large System Load Coupling Quill Shaft 3,600 rpm5,100 rpm Ia Ib Ic
- 18. B E C K W I T H E L E C T R I C Synchronizing Procedure Steps: 1. Speed and voltage matching 2. Phase angle matching 3. Send close command
- 19. B E C K W I T H E L E C T R I C Typical Synchronizing Scheme Generator Synchronizing CC -DC +DC Sync. Selector Automatic Sync. Auto Synchronizer (M-0193) Synchronism Check (M-0188) 52b Breaker Close Coil Manual Sync. Control Switch
- 20. B E C K W I T H E L E C T R I C Speed Matching Results From Using Conventional Pulse Frequency Modulation Matching Method
- 21. B E C K W I T H E L E C T R I C Speed Matching Using Proportional Pulse-Width Modulation Method TBP TBP TBP
- 22. B E C K W I T H E L E C T R I C Typical Synchronizing Scheme Operator-Assisted Automatic Synchronizing CC -DC +DC Sync Selector Switch Auto Synchronizer Synch-Check Relay 52b Breaker Close Coil Breaker Control Switch (Operator) Enable Sync (M-0193) (M-0188)
- 23. B E C K W I T H E L E C T R I C Automatic Synchronizing • System Sync-Check Relaying • There is a “static” angle across the circuit breaker • Used to close the circuit breaker on a power system for: – automatic reclosing after a fault – supervises SCADA closing – supervise manual closing 52 25 Bus Line VT +DC -DC CC 25 52
- 24. B E C K W I T H E L E C T R I C Syncrocloser® Interconnections
- 25. B E C K W I T H E L E C T R I C Synchronizing, Sync-Check Relays and Generator Control Features Model No. Device No. Automatic Synchronizer Generator Control Sync-Check Relay Phase Angle Limit Time Limit Voltage Verification Voltage Difference (∆V) Frequency Difference (∆F) Dead Line/Bus Closing 19” Rack Mount S1/FT-21 Style Case Vertical Mount GES Retrofit GTL Retrofit M-0193 25A √ — — — — — √ √ — √ — * * — M-0194 15/16 — √ — — — — — — — √ — * — * M-0188 25 — — √ √ √ * * — * √ — * — — M-0388 25 — — √ √ √ * — — * — √ — — — M-0245† 25 — — √ √ — √ — — — √ — * — — M-0359 25 — — √ — — √ √ √ — √ — * — — M-0390 25 — — √ √ √ √ — √ — — √ — — — √ Standard * Optional — Not Available † High Speed Sync-Check relay verifies Phase Angle within one cycle
- 26. B E C K W I T H E L E C T R I C THE END