Figure 237: Underfrequency logic (single stage) 413
Figure 238: Overfrequency logic (single stage) 414
Figure 239: Rate of change of frequency logic (single stage) 415
Figure 240: Fault recorder stop conditions 432
Figure 241: Broken Current Accumulator logic diagram 437
Figure 242: CB Trip Counter logic diagram 437
Figure 243: Operating Time Accumulator 438
Figure 244: Excessive Fault Frequency logic diagram 438
Figure 245: Reset Lockout Alarm logic diagram 439
Figure 246: CB Condition Monitoring logic diagram 440
Figure 247: Reset Circuit Breaker Lockout Logic Diagram (Module 57) 441
Figure 248: CB State Monitor logic diagram (Module 1) 444
Figure 249: Hotkey menu navigation 446
Figure 250: Default function key PSL 447
Figure 251: Remote Control of Circuit Breaker 448
Figure 252: CB Control logic diagram (Module 43) 449
Figure 253: Pole Dead logic 450
Figure 254: Check Synchronisation vector diagram 453
Figure 255: Voltage Monitor for CB Closure (Module 59) 454
Figure 256: Check Synchronisation Monitor for CB closure (Module 60) 455
Figure 257: System Check PSL 456
Figure 258: Current Differential Starter Supervision Logic 464
Figure 259: Current Differential function Start logic 465
Figure 260: Switched Communication Path supervision 466
Figure 261: Communication Asymmetry Supervision 467
Figure 262: VTS logic 474
Figure 263: Differential CTS 476
Figure 264: Standard CTS 477
Figure 265: TCS Scheme 1 479
Figure 266: PSL for TCS Scheme 1 480
Figure 267: TCS Scheme 2 481
Figure 268: PSL for TCS Scheme 2 481
Figure 269: TCS Scheme 3 482
Figure 270: PSL for TCS Scheme 3 482
Figure 271: Scheme Logic Interfaces 487
Figure 272: Trip LED logic 491
Figure 273: Fibre Teleprotection connections for a three-terminal Scheme 503
Figure 274: Interfacing to PCM multiplexers 508
Figure 275: IM64 channel fail and scheme fail logic 511
Figure 276: IM64 general alarm signals logic 511
P543i/P545i Table of Figures
P54x1i-TM-EN-1 xxxi
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