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Siemens Argus 7SR21 Technical Manual Manual pdf 644 page image

Siemens Argus 7SR21 Technical Manual

Also see for Argus 7SR21: Installation guideManualManualManualManual

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Contents
  1. Description of Operation
  2. Document Release History
  3. Table Of Contents
  4. Table Of Contents
  5. Table Of Contents
  6. Table Of Contents
  7. Section 1: Introduction
  8. Table 1.5-1 Ordering Information – 7SR21 Non-Directional Overcurrent
  9. Figure 1.5-1 Functional Diagram of 7SR21 Relay
  10. Figure 1.5-2 Connections Diagram for 7SR21 Relay
  11. Table 1.5-2 Ordering Information – 7SR22 Directional Overcurrent
  12. Figure 1.5-3 Functional Diagram of 7SR22 Relay
  13. Figure 1.5-4 Connection Diagram for 7SR22 Relay
  14. Section 2: Hardware Description
  15. Case
  16. Figure 2.5-1 7SR21 with 3 + 8 LEDs in E6 Case
  17. Communication Interface
  18. Current Inputs
  19. Binary Outputs (Output Relays)
  20. Virtual Input/Outputs
  21. Protection Healthy/Defective
  22. Section 3: Protection Functions
  23. Figure 3.1.1-1 Logic Diagram: Directional Overcurrent Element (67)
  24. Instantaneous Overcurrent Protection (50)
  25. Time Delayed Overcurrent Protection (51)
  26. Current Protection: Voltage Controlled Overcurrent (51V) – 7SR22
  27. Current Protection: Derived Earth Fault (67N, 51N, 50N)
  28. Instantaneous Derived Earth Fault Protection (50N)
  29. Time Delayed Derived Earth Fault Protection (51N)
  30. Current Protection: Measured Earth Fault (67G, 51G, 50G)
  31. Instantaneous Measured Earth Fault Protection (50G)
  32. Time Delayed Measured Earth Fault Protection (51G)
  33. Current Protection: Sensitive Earth Fault (67SEF, 51SEF, 50SEF)
  34. Instantaneous Sensitive Earth Fault Protection (50SEF)
  35. Figure 3.5.2-1 Logic Diagram: 50 SEF Instantaneous Element
  36. Time Delayed Sensitive Earth Fault Protection (51SEF)
  37. Figure 3.5.3-1 Logic Diagram: 51 SEF Time Delayed Element
  38. Current Protection: High Impedance Restricted Earth Fault (64H)
  39. Current Protection: Cold Load (51c)
  40. Current Protection: Negative Phase Sequence Overcurrent (46NPS)
  41. Current Protection: Under-Current (37, 37G & 37SEF)
  42. Current Protection: Thermal Overload (49)
  43. Figure 3.11-1 Logic Diagram: Thermal Overload Protection (49S)
  44. Current Protection: Arc Flash Detector (50 AFD)
  45. Voltage Protection: Phase Under/Over Voltage (27/59) - 7SR22
  46. Voltage Protection: Negative Phase Sequence Overvoltage (47) – 7SR22
  47. Voltage Protection: Neutral Overvoltage (59N) – 7SR22
  48. Voltage Protection: Under/Over Frequency (81) – 7SR22
  49. Power Protection: Power (32) – 7SR22
  50. Power Protection: Sensitive Power (32S) – 7SR22
  51. Power Protection: Power Factor (55) – 7SR22
  52. Section 4: Control & Logic Functions
  53. Auto Reclose sequences
  54. Autoreclose Prot'n Menu
  55. P/F Shots Sub-Menu
  56. Extern Shots Sub-Menu
  57. Figure 4.7-1 Basic Auto-Reclose Sequence Diagram
  58. Manual Control
  59. Synchronising
  60. Figure 4.9.3-1 Voltage Detector Operation
  61. Check Synchronising Mode
  62. System Split Detector
  63. System Synchronising Mode
  64. Live/Dead Indication
  65. Circuit Breaker
  66. Figure 4.11-1 Logic Diagram: Circuit Breaker Status
  67. Quick Logic
  68. Figure 4.12-1Sequence Diagram: Quick Logic PU/DO Timers (Counter Reset Mode Off)
  69. Section 5: Supervision Functions
  70. VT Supervision (60VTS) – 7SR22
  71. Busbar VT Fail (60VTF-Bus) – 7SR22
  72. CT Supervision (60CTS & 60CTS-I)
  73. Broken Conductor (46BC)
  74. Inrush Restraint (81HBL2)
  75. Over Fluxing Detector (81HLB5)
  76. Load Blinder (21)
  77. Load Blinder (21) Single-Phase
  78. Data Communications Definitions
  79. Siemens Protection Devices Limited
  80. Data Storage
  81. Fault Records
  82. Energy Storage
  83. Fault Locator
  84. Operating Mode
  85. Time Synchronisation - Data Communication Interface
  86. The copyright and other intellectual property rights in this document, and in any model or article produced from it
Siemens Argus 7SR21 Technical Manual Manual pdf 644 page image
UnrestrictedSiemens Protection Devices LimitedP.O. Box 8, North Farm RoadHebburn, Tyne & WearNE31 1TZUnited KingdomPhone: +44 (0)191 401 7901Fax: +44 (0)191 401 5575E-mail: marketing.spdl.gb@siemens.comFor enquires please contact our Customer Support CenterPhone: +49 180/524 8437 (24hrs)Fax: +49 180/524 2471E-mail: support.energy@siemens.comEMEA-T10050-00-76GBOctober 2018www. siemens.com/energy
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