ABB RER620 - Page 16

Section 1MAC309294-MB F
10 RER620
Technical Manual
Technical data ................................................................................. 336
Loop control (DLCM) ............................................................................ 336
Identification .................................................................................... 336
Function block ................................................................................. 336
Functionality .................................................................................... 336
Sectionalizing Recloser.............................................................. 337
Midpoint Recloser ...................................................................... 338
Tiepoint Recloser ....................................................................... 338
Operation principle .......................................................................... 338
Application....................................................................................... 343
Three-Recloser Loop Control..................................................... 344
Five-Recloser Loop Control ....................................................... 346
Four-Recloser System Operation............................................... 350
Restoring Normal Operation ...................................................... 350
Signals............................................................................................. 351
Settings ........................................................................................... 352
Multipurpose Generic Up-Down Counter (UDFCNT) ........................... 353
Identification .................................................................................... 353
Function block ................................................................................. 353
Functionality .................................................................................... 353
Operation principle .......................................................................... 353
Signals............................................................................................. 355
Settings ........................................................................................... 355
Section 6 Condition monitoring functions ......................................... 357
Circuit breaker condition monitoring 52CM .......................................... 357
Identification .................................................................................... 357
Function block ................................................................................. 357
Functionality .................................................................................... 357
Operation principle .......................................................................... 358
Circuit breaker status ................................................................. 360
Circuit breaker operation monitoring .......................................... 360
Breaker contact travel time ........................................................ 361
Operation counter ...................................................................... 363
Accumulation of I
y
t ..................................................................... 364
Remaining life of the circuit breaker........................................... 365
Circuit breaker spring charged indication................................... 367
Gas pressure supervision .......................................................... 367
Application....................................................................................... 368
Signals............................................................................................. 372
Settings ........................................................................................... 374
Monitored data ................................................................................ 375
Technical data ................................................................................. 375