SIGRA_MANUAL_B1_EN.pdf

# S vl1 il1 vl2 il2 vl3 il3 p re s q im s 611 formulas

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S VL1 IL1* VL2 IL2* VL3 IL3* P Re (S ) Q Im (S )

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Calculations/Definitions 6.11 Formulas 149 SIPROTEC, SIGRA, Manual E50417-H1176-C070-B1, Edition 06.2017 6.11 Formulas The following list shows the meanings and a brief description of the formula symbols used. R 0M Mutual zero-sequence resistance (coupling resistance) X 0M Mutual zero-sequence reactance (coupling reactance) R 0 Zero-sequence resistance of the protected object (e.g. a line) X 0 Zero-sequence reactance of the protected object (e.g. a line) k r R E / R L (R 0 / R 1 1) / 3 Earth impedance matching, resistance ratio k x X E / X L (X 0 / X 1 1) / 3 Earth impedance matching, reactance ratio k Mr R M /R L R 0M / R 1 / 3 Coupling impedance matching, resistance ratio k Mx X M / X L X 0M / X 1 / 3 Coupling impedance matching, reactance ratio R 1 Positive-sequence resistance of the protected object (e.g. a line) X 1 Positive-sequence reactance of the protected object (e.g. a line) Z 1 Positive-sequence impedance of the protected object (e.g. a line) V 1 Positive-sequence voltage V 2 Negative-sequence voltage V 0 Zero-sequence voltage I 1 Positive-sequence current I 2 Negative-sequence current I 0 Zero-sequence current I L1 Conductor current, phase L1 I L2 Conductor current, phase L2 I L3 Conductor current, phase L3 I E Earth current V L1 Voltage conductor L1 - earth V L2 Voltage conductor L2 - earth V L3 Voltage conductor L3 - earth V en Displacement voltage V L12 Voltage conductor L1 - conductor L2 V L23 Voltage conductor L2 - conductor L3
Calculations/Definitions 6.11 Formulas 150 SIPROTEC, SIGRA, Manual E50417-H1176-C070-B1, Edition 06.2017 V L31 Voltage conductor L3 - conductor L1 S Apparent power P Active power Q Reactive power

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151 SIPROTEC, SIGRA, Manual E50417-H1176-C070-B1, Edition 06.2017 Literature /1/ SICAM PAS, Overview E50417-X8976-C431 /2/ SICAM PQS, Overview E50417-X8976-C464 /3/ SICAM PAS/PQS, Configuration and Operation E50417-P8976-C433 /4/ SICAM Valpro, Measured/Metered Value Processing Utility E50417-H8976-C479 /5/ SICAM PQS, Fault Locator E50417-H8976-C421 /6/ SICAM PQ Analyzer E50417-H8976-C397 /7/ SICAM PQ Analyzer, Incident Explorer E50417-H8976-C465 /8/ SIPROTEC DIGSI 4, Start UP E50417-G1176-C152 /9/ SIPROTEC System Description, Manual E50417-H1176-C151 /10/ Ethernet & IEC 61850, Start UP E50417-F1176-C324 /11/ Ethernet & IEC 61850, Conzepts, Implementation, Commissioning E50417-F1176-C361 These Documents can be ordered by your Siemens Partner.
Literature 152 SIPROTEC, SIGRA, Manual E50417-H1176-C070-B1, Edition 06.2017

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Index 153 SIPROTEC, SIGRA, Manual E50417-H1176-C070-B1, Edition 06.2017 Index A Analog signals 117 , 118 B Binary signals 116 , 117 , 119 Buttons 48 C Calculated signals 122 Calculations 139 Circle Diagrams 111 Comment 16 Comments 70 COMTRADE 78 , 138 Comtrade Export 16 , 75 Context menu 38 Cursor 15 , 18 , 20 , 56 , 59 Magnetic cursor lines 57 Position 56 , 58 Snap-in cursor lines 57 D Data export 16 Diagram 102 Delete 109 Insert 106 Properties 16 , 110 Diagram properties 110 , 114 Distance protection 25 Drag-and-drop 16 , 76 , 108 , 112 , 116 E Earth impedance matching 144 Excel 76 F Fault record 138 comment 70 Edit 69 Files 54 , 99 Insert 66 Non-company devices 78 Print 74 Synchronize ~ 67 G generate 122 Graphics 105 H Help system 36 I Impedance 25 Instantaneous value 41 M Markers 58 Mathematical functions generate 122 Maximize 114 Measured signals Assign 56 Measuring window 57 , 139 Menu bar 38 Minimize 114 N Non-company devices 78 , 139 O Object properties Call ~ 113 Diagram
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