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GUID-35F40C3B-B483-40E6-9767-69C1536E3CBC V1 EN-US

Figure 450: Inverse curve A characteristic of undervoltage protection

1MRK 506 382-UEN A Section 23

Inverse time characteristics

Line distance protection REL650 2.2 IEC 923

Technical manual

Main Page

Default Chapter7
- Table of Contents7
Section 1 Introduction37
- This Manual37
  - Presumptions for Technical Data37
- Intended Audience38
- Product Documentation38
- Document Symbols and Conventions41
  - Symbols41
  - Document Conventions42
- IEC 61850 Edition 1 / Edition 2 Mapping42
Section 2 Available Functions47
- Main Protection Functions47
- Back-Up Protection Functions48
- Control and Monitoring Functions49
- Communication52
- Basic IED Functions54
Section 3 Analog Inputs57
- Introduction57
- Function Block57
- Signals58
- Settings59
- Monitored Data64
- Operation Principle65
- Technical Data66
Section 4 Binary Input and Output Modules67
- Binary Input67
Section 5 Local Human-Machine-Interface LHMI69
- Local HMI Screen Behaviour69
Section 6 Impedance Protection93
- Distance Protection ZMFPDIS93
- Power Swing Detection ZMRPSB128
- Automatic Switch Onto Fault Logic ZCVPSOF136
- Out-Of-Step Protection OOSPPAM141
- Phase Preference Logic PPL2PHIZ154
Section 7 Current Protection165
- Instantaneous Phase Overcurrent Protection PHPIOC165
- Four Step Directional Negative Phase Sequence Overcurrent Protection NS4PTOC210
- Sensitive Directional Residual Overcurrent and Power Protection223
- Sdepsde223
- Thermal Overload Protection, One Time Constant, Celsius/Fahrenheit LCPTTR/LFPTTR236
Section 8 Voltage Protection265
- Two Step Undervoltage Protection UV2PTUV265
- Identification265
- Functionality265
- Function Block266
- Signals266
- Settings267
- Monitored Data269
- Operation Principle269
- Two Step Overvoltage Protection OV2PTOV279
- Two Step Residual Overvoltage Protection ROV2PTOV292
Section 9 Frequency Protection305
- Underfrequency Protection SAPTUF305
Section 10 Secondary System Supervision321
- Current Circuit Supervision CCSSPVC321
Section 11 Control339
- Synchrocheck, Energizing Check, and Synchronizing SESRSYN339
- Autorecloser for 1 Phase, 2 Phase And/Or 3 Phase Operation SMBRREC359
- Interlocking384
  - Logical Node for Interlocking SCILO384
- Apparatus Control APC386
- Logic Rotating Switch for Function Selection and LHMI Presentation SLGAPC420
- Selector Mini Switch VSGAPC425
- Generic Communication Function for Double Point Indication DPGAPC428
- Single Point Generic Control 8 Signals SPC8GAPC430
- Automationbits, Command Function for DNP3.0 AUTOBITS432
- Single Command, 16 Signals SINGLECMD435
Section 12 Scheme Communication439
- Scheme Communication Logic for Distance or Overcurrent439
- Protection ZCPSCH439
- Current Reversal and Weak-End Infeed Logic for Distance Protection 3-Phase ZCRWPSCH447
- Local Acceleration Logic ZCLCPSCH452
- Scheme Communication Logic for Residual Overcurrent Protection ECPSCH455
- Current Reversal and Weak-End Infeed Logic for Residual Overcurrent Protection ECRWPSCH461
Section 13 Logic469
- Tripping Logic SMPPTRC469
- General Start Matrix Block SMAGAPC479
- Trip Matrix Logic TMAGAPC486
- Logic for Group Alarm ALMCALH490
- Logic for Group Warning WRNCALH493
- Logic for Group Indication INDCALH495
- Basic Configurable Logic Blocks497
- Fixed Signals FXDSIGN509
- Boolean 16 to Integer Conversion B16I511
- Boolean to Integer Conversion with Logical Node Representation, 16 Bit BTIGAPC514
- Integer to Boolean 16 Conversion IB16517
- Integer to Boolean 16 Conversion with Logic Node Representation ITBGAPC520
- Elapsed Time Integrator with Limit Transgression and Overflow Supervision TEIGAPC523
- Comparator for Integer Inputs INTCOMP527
- Comparator for Real Inputs REALCOMP530
Section 14 Monitoring535
- Measurements535
- Gas Medium Supervision SSIMG570
- Liquid Medium Supervision SSIML574
Section 16 Ethernet661
- Access Point661
  - Introduction661
  - Settings661
- Access Point Diagnostics663
- Redundant Communication665
- Merging Unit668
- Routes674
Section 17 Station Communication677
- Communication Protocols677
- Communication Protocol Diagnostics677
- DNP3 Protocol678
- IEC 61850-8-1 Communication Protocol678
- Communication Interfaces and Protocols679
- Goosemvrcv689
- Security Events on Protocols SECALARM781
- Settings782
- Authority Check ATHCHCK783
  - Operation Principle784
  - Authorization with Central Account Management Enabled IED786
- Authority Management AUTHMAN789
  - Settings790
  - Function Block791
- Self Supervision with Internal Event List INTERRSIG792
- Denial of Service DOS798
- Time Synchronization TIMESYNCHGEN801
- Parameter Setting Groups816
Section 21 Labels891
Section 22 Connection Diagrams893
Section 23 Inverse Time Characteristics895
- Principle of Operation898
- Inverse Characteristics903
Section 24 Glossary931

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