Thermal overload blocking................................................... 406
Operation principle.................................................................... 406
Signal collection and delay logic.......................................... 407
Shot initiation........................................................................411
Shot pointer controller.......................................................... 414
Reclose controller.................................................................415
Sequence controller............................................................. 417
Protection coordination controller.........................................418
Circuit breaker controller...................................................... 419
Shot initiation........................................................................422
Sequence............................................................................. 426
Configuration examples........................................................427
Delayed initiation lines..........................................................430
Shot initiation from protection start signal............................ 432
Fast trip in Switch on to fault................................................ 432
Signals.......................................................................................433
Settings......................................................................................434
Monitored data...........................................................................436
Technical data........................................................................... 438
Technical revision history.......................................................... 438
Section 9 General function block features....................................439
Definite time characteristics............................................................439
Definite time operation...............................................................439
Current based inverse definite minimum time characteristics........ 442
IDMT curves for overcurrent protection.....................................442
Standard inverse-time characteristics.................................. 446
User-programmable inverse-time characteristics.................461
RI and RD-type inverse-time characteristics........................ 461
Reset in inverse-time modes.....................................................465
Inverse-timer freezing................................................................474
Voltage based inverse definite minimum time characteristics........ 475
IDMT curves for overvoltage protection.....................................475
Standard inverse-time characteristics for overvoltage
protection..............................................................................477
User programmable inverse-time characteristics for
overvoltage protection.......................................................... 481
IDMT curve saturation of overvoltage protection..................482
IDMT curves for undervoltage protection.................................. 482
Standard inverse-time characteristics for undervoltage
protection..............................................................................483
Table of contents
14
611 series
Technical Manual
Summary of Contents for Relion 611 Series
Page 1: ... RELION PROTECTION AND CONTROL 611 series Technical Manual ...
Page 2: ......
Page 22: ...16 ...
Page 30: ...24 ...
Page 308: ...302 ...
Page 400: ...394 ...
Page 506: ...500 ...
Page 516: ...510 ...
Page 522: ...516 ...
Page 528: ...522 ...
Page 533: ...527 ...
Page 534: ......
Page 535: ......