Siemens 7SR10 Argus Series Manual page 101

2.13 51G Time Delayed Measured Earth Fault ......................................................................................... 34
2.13.1 Reference .......................................................................................................................... 34
2.13.2 Operate and Reset Level .................................................................................................... 34
2.13.3 Operate and Reset Time .................................................................................................... 34
2.14 51N Time Delayed Derived Earth Fault ............................................................................................. 36
2.14.1 Reference .......................................................................................................................... 36
2.14.2 Operate and Reset Level .................................................................................................... 36
2.14.3 Operate and Reset Time .................................................................................................... 36
2.15 51SEF Time Delayed Sensitive Earth Fault ...................................................................................... 38
2.15.1 Reference .......................................................................................................................... 38
2.15.2 Operate and Reset Level .................................................................................................... 38
2.15.3 Operate and Reset Time .................................................................................................... 38
2.16 51V Voltage Controlled Overcurrent ................................................................................................. 40
2.16.1 Reference .......................................................................................................................... 40
2.16.2 Operate and Reset Level .................................................................................................... 40
2.17 55 Power Factor .............................................................................................................................. 41
2.17.1 Reference .......................................................................................................................... 41
2.17.2 Operate and Reset Level .................................................................................................... 41
2.17.3 Operate and Reset Time .................................................................................................... 41
2.17.4 Operate Threshold ............................................................................................................. 41
2.18 59N Neutral Voltage Displacement ................................................................................................... 42
2.18.1 Reference (59NDT) ............................................................................................................ 42
2.18.2 Operate and Reset Level (59NDT) ...................................................................................... 42
2.18.3 Operate and Reset Time (59NDT) ...................................................................................... 42
2.18.4 Reference (59NIT).............................................................................................................. 42
2.18.5 Operate and Reset Level (59NIT) ....................................................................................... 42
2.19 64H Restricted Earth Fault Protection ............................................................................................... 44
2.19.1 Reference .......................................................................................................................... 44
2.19.2 Operate and Reset Level .................................................................................................... 44
2.19.3 Operate and Reset Time .................................................................................................... 44
2.20 67/67N/67G/67SEF Directional Overcurrent & Earth Fault ................................................................. 45
2.20.1 Reference .......................................................................................................................... 45
2.20.2 Operate Angle .................................................................................................................... 45
2.20.3 Operate Threshold ............................................................................................................. 45
2.20.4 Operate and Reset Time .................................................................................................... 45
2.21 81 Under/over frequency .................................................................................................................. 46
2.21.1 Reference .......................................................................................................................... 46
2.21.2 Operate and Reset Level .................................................................................................... 46
2.21.3 Operate and Reset Time .................................................................................................... 46
Section 3: Supervision Functions ...................................................................................................................... 47
3.1 46BC Broken Conductor .................................................................................................................. 47
3.1.1 Reference .......................................................................................................................... 47
3.1.2 Operate and Reset Level .................................................................................................... 47
3.1.3 Operate and Reset Time .................................................................................................... 47
3.2 50BF Circuit Breaker Fail ................................................................................................................. 48
3.2.1 Reference .......................................................................................................................... 48
3.2.2 Operate and Reset Level .................................................................................................... 48
3.2.3 Operate and Reset Time .................................................................................................... 48
3.3 60CTS & 60CTS-I Current Transformer Supervision ......................................................................... 49
3.3.1 Reference .......................................................................................................................... 49
3.3.2 Current & Voltage Threshold............................................................................................... 49
3.3.3 Operate and Reset Time .................................................................................................... 49
3.4 60VTS Voltage Transformer Supervision .......................................................................................... 50
3.4.1 Reference .......................................................................................................................... 50
3.4.2 Operate and Reset Level .................................................................................................... 50
3.4.3 Operate and Reset Time .................................................................................................... 50
3.5 74TCS & 74CCS Trip & Close Circuit Supervision ............................................................................ 51
3.5.1 Reference .......................................................................................................................... 51
3.5.2 Operate and Reset Time .................................................................................................... 51
3.6 81HBL2 Inrush Detector .................................................................................................................. 51
3.6.1 Reference .......................................................................................................................... 51
3.6.2 Operate and Reset Time .................................................................................................... 51
3.7 81THD Total Harmonic Distortion Supervision .................................................................................. 52
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7SR10 Performance Specification
Chapter 3 Page 3 of 52