4BRELAY SETTINGS
0BDEVICE CONFIGURATION
Frequency difference
Enable:
Enables/disables the comparison of the frequency magnitudes at
both sides of the switch.
Difference (Hz):
Highest frequency difference between voltages to enable
the synchronization condition.
Figure 3-40 shows an example of a logic lock.
Figure 3-40 Example of a logic lock
When the function 25 is enabled, the r25CloseOK signal is reset to zero and only
switches to one when the synchrocheck conditions defined in function 25 are fulfilled,
thus enabling the close command but not issuing it. The close command is given by
the signals that are below in the OR logic, for example: rClosePa. The understanding
of this logic would be as follows: "if there is no mechanical lock (iLockout), or close
lockout (blkClose), or active Hot Line Tag (HLTON) and the logic 15 (rLogic15) is off,
as well as synchrocheck close permission (r25CloseOK) is enabled, then, it closes if
any of the below signals is ON. "
If the signal r25CloseOK were used in the OR below, it would be a mistake since we
would be using it as a closing signal and this is not its purpose.
Summary of Contents for smART P500
Page 1: ...Instruction Manual Multifunction Protection Relay smART P500...
Page 23: ...2BTABLES INDEX THIS PAGE HAS BEEN LEFT BLANK INTENTIONALLY...
Page 39: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 9 Wye Wye Connection measured neutral...
Page 40: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 10 Wye Wye Connection sensitive neutral...
Page 41: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 11 Open Delta Connection measured neutral...
Page 42: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 12 Open Delta Connection sensitive neutral...
Page 511: ...2BANSI CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 6 Moderately ANSI curve...
Page 513: ...2BANSI CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 7 Very inverse ANSI curve...
Page 515: ...2BANSI CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 8 Extremely inverse ANSI curve...
Page 532: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 14 Recloser Curves 101 119...
Page 535: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 15 Recloser Curves 120 142...
Page 538: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 16 Recloser Curves 151 202...