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Siemens 7SA511 manual Maintenance

Models: 7SA511

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7SA511 Line Protection RelayChapter 8

Maintenance

Table of Contents
8. Maintenance		8-3
8.1 Tracing Hardware and Software Faults		8-4
8.2	Troubleshooting Tips	8-4
8.3	Inspecting the Power Supply Fuse	8-4
8.4	Replacing the Backup Battery	8-5
8.5 Erasing Stored Data (8200)		8-6
8.6 What To Do With Defective Relays		8-7
8.7	Storing Relays That are Taken Out of Service	8-7

List of Figures

Figure 8-1.Power Supply Minifuse and Backup Battery on the Basic GEA module

8-5

July 27, 1995

8-1

Image 173

Siemens 7SA511 manual Maintenance

Contents

7SA511 Numerical Line Protection Relay Page Table of Contents July 27 List of Figures Table of ContentsThis page intentionally blank Then read Using This ManualIf you want to Abbreviations and Acronyms Glossary of Terms and AbbreviationsTerms Reclaim time PickupReverse StageLine Protection Relay 7SA511 Ground fault detection inputThis page intentionally blank Product Description 7SA511 Line Protection Relay Product Description About the Relay Relay Setting Types Relay FeaturesAddress Relay Setting Descriptions by Address BlockLCD Text Description4000 Annunciations Operational Annunciations Last Fault Fault detection options FeatureOverview of Protection Functions Distance ProtectionFeature Pilot Protection Power Swing Protection optionalEmergency Overcurrent Protection High-Resistance Ground Fault Protection optional Automatic Reclose optional Distance-to-Fault LocationSecured Data Storage Additional Functions and Features of the RelaySerial Data Ports Front Panel PortMultiple Parameter Sets optional Acceptance Tests 7SA511 Line Protection Relay Acceptance Tests IEC Ansi Inrush peak Test EquipmentRated Voltage Reading the Initial Display Energizing the RelayOr Direkteadresse Verifying the Language SettingIf the display shows Then Relay Settings for Acceptance TestsRelay Terminal Connections Test Equipment Relay Power Supply TestPower Consumption Test Alarm Relay Contact Test Current and Frequency Metering Test Metering TestsModel No Current Input Connections Addr. NoTolerance Voltage Metering TestVoltage Input Connections Addr. No LCD Text Addr Binary Input TestIndex No InputLED Test MinusEMERG.O/C on Addr LCD Text14. LED Test Current Input Connections Signal and Trip Relay Test Overcurrent Fault Detection Test Testing the Fault Detection SystemsPrerequisite Settings Addr LCD Text SettingVoltage-Controlled Overcurrent Fault Detection Test Optional Prerequisite Setting Addr. LCD Text Impedance Zone Impedance Fault Detection Test optionalPrerequisite Setting Addr LCD Text VP/V = KRRAIP/IN Testing the Distance Zones Fault TypeSetting value X of the distance zone to be checked Overreach Zones Z1B and Z1L Independent Zones Z1, Z2, and Z3Zone Test Type Coordination Times Testing the Power Swing Blocking Function OptionalPower Swing Exist PROGR. OUT-OF-STEP Trip Addr Setting Option Description Signal Transmission TestTest Permissive Underreach Transfer Trip PuttPutt Mode Action Zone Expected Result Setting at AddressPott Mode Permissive Overreach Transfer Trip PottRevers Interlock Emergency Overcurrent Protection TestDIST. PROT. NON-EXIST EMERG. O/C Exist Initial SetupHigh-Set Overcurrent Definite Time Ov rcurrent Protection Overcu rent T ProcedureDefinite Time High-SetInput/Output Units FNoInverse Time Testing the Automatic Reclose AR Function OptionalEnd of Acceptance Testing Prerequisite Settings Addr LCD Text DescriptionThis page intenionally blank Installation 7SA511 Line Protection Relay Installation 7SA511 Receiving and Handling the RelayStoring the Relay Preparing the Relay for InstallationRemoving the Relay’s Front Cover Removing/Installing Relay ModulesInserting the additional I/O module Removing the basic moduleRemoving the additional I/O module Changing the Binary Input Voltage Range Inserting the basic modulePrinted Circuit Board Locations Installing the Backup Battery Battery Installation Procedure View a View a Mounting the RelayGeneral Connection Drawings Connecting the Relay to Your SystemLine-NeutralVL2 Voltage Inputs Wire Port #8 Ring lugs #10 Ring lugs Voltage, Signal & Tripping Terminal Block B a 14. VT Circuits Phase CTs with residual connection For ground faults T. connection with broken-delta for optimum Pilot Wire Connection Diagrams StationB Station This page intentionally blank Programming the Relay 7SA511 Relay’s Operator Panel Operator Panel Introduction7SA511 KeypadDisplay Panel On/Off switchNameplate LEDsFront Serial Data Port General Procedures for Programming the RelayReserved Area for LED Labels KeyFunction Placing the Relay in Programming Mode Using the Navigation KeysSelecting an Dress KeyYou wa to choose is displayed on the LCD Changing a S ttingEnabling the Relay for Substation Control Optional Saving New SettingsStep Action Result By use of the key Waveform Capture Settings PresetAddr LCD Text Description Options/RangeFault detection pickup Trip command Baud If address 2802 setting isRelay Scope of Functions Options Operating SettingsSection Operating ParametersDD.MM.YYYY By Fault Detec Language OPER. Baud Date Format Fault IndicMM/DD/YYYY By Trip Command EnglishDate Real-Time ClockSet Time Difference TimeParameter Changeover Optional Synchronizing the ClockConfiguring Each Parameter in Each Set Configuring a Parameter SetAccesses this parameter set PARAM.C/OCopying Parameter Sets Selecting the Active Parameter Set Address Copy ActionDeactivating Parameter Changeover System SettingsPower System Settings Settings for Measured Value Monitoring Fuse Fail Distance Protection SettingsZ1B Z1L Fault Loop Earthed Network Fault Loop NON-EARTHED NETAddr. Block General Settings Independent Zones Z1, Z2, Z3 Controlled Overreach Zones Z1B and Z1L Zone & Description PresetZone & Description Overcurrent Fault Detection SettingsPrerequisite Settings Addr. LCD Text PROG. U/I Voltage Controlled Overcurrent Fault DetectionExist U/I Exist Impedance Zone Polygonal Impedance Fault DetectionPROG. ZA RA1 RA2 RAELCD Text Description Determination of the Fault Loop for Grounded SystemsPreset Options/Range Phase Pref Power Swing Protection 2000 OptionalL3L1 Acyclic Exist Impedance Zone ExistPermissive Underreach Transfer Addr LCD Text Description PresetPermissive Overreach Transfer Putt Mode SEND-PRL REC-PROL SEND-DELZ1B Acceleration OFF FD AccelerationSEND-DEL Echo ECHO-DEL ECHO-IMP ECHO-BLO Pott Mode Transblo Wait TB SEND-PRLZ1B Release ForwardsStage MAN. CloseCT ERR CT ERR. F1 CT ERR. F2 EarthfaultExist Compensated Isolated Directional D.T. Solidly Earthed Directional Protection With Nondirectional BackupDirection NON-DIR DirectBlock DIREC. Comparison Solidly EarthedNondirectional, Inverse Time Overcurrent Protection Description PresetCharac Normal InverseInternal AR Device Configuration for Automatic RecloseOption Terminology Automatic Reclose Function SettingsAddr LCD Text Description Preset Options/Range Prerequisite Setting Addr LCD Text Description Fault Location SettingsFunction Turning the Relay Functions On and OffSee Section Compar EchoProcedure for Configuring the Logical Functions Configuration SettingsBelowFAILU. RELAY424V Addr Unit Index No PresettingsLCD Text 2nd line AR on no AR OFF noLED Binary Inputs Trip Relays Signal RelaysLED Indicators This page intentionally blank Displaying System and Relay Information This page intentionally blank Using the Operator Panel to Display Information Event Log Ess. ANNUNCIATIONS5000Event Log Messages Storage and Display DescriptionLCD Text 2nd line Description Possible Tag Binary InputsMonitoring Functions GeneralGround Fault Protection Power Swing FunctionAutomatic Reclose Function Circuit Breaker Test FunctionTarget Log for All Systems 5200, 5300, Table Status7SA511 Line Protection Re ay Chapter Example Sys em Fault MessagesCommand. DisTrip46 23C Distance Protection Target Log MessagesLCD Text 2nd line Description High-Resistance Ground Fault Protection in Grounded Systems Fault LocationEmergency Overcurrent Protection Automatic RecloseBegan. E/FDetection002104357 C Circuit Breaker Operation Statistics Isolated Ground Fault Data Log MessagesOperational Measured Values Reading the Measured ValuesAs a percentage of VN Primary specified at address Waveform Capture Access Start End PortMax. Rec. Time After Pickup Total Maximum Recording Time33..100 Commissioning the Relay 7SA511 Line Protection Relay Commissioning the Relay Relay Commissioning Tests Verifying the Installation and Relay ConfigurationSymmetry Error Current, Voltage, and Phase Sequence ChecksSummation Error Guidelines for Commissioning the RelayDirectional Test Using Load Current Phase Sequence CheckMeasurement Loop Test ProcedureJuly 27 Checking the Carrier Transmission System Overreach Zone Comparison Via Pilot WiresOverreach Pilot Wire Comp Teleprotec Pott ModeReverse Interlocking Overreach Revers InterlockCarrier Transmission With Release Signal Overreach Z1B Blocking Carrier Transmission With Blocking SignalCarrier Transmission With Underreach Transfer Signal DIREC.COMPARISON OFF If address 2102 setting isCB Auxiliary Contact Control Circuit Breaker Trip Test4401 4402 4403 4404 Automatic Reclose Test 4300 Optional Setting Options & DescriptionsLCD Text & Description AUTO-RECLTestProcedure Returning the Relay o Op rating Status LCD extThis page intentionally blank Maintenance 7SA511 Line Protection Relay Maintenance Electrostatic Discharge Possible equipment damage Troub eshooting Tips Tracing Hardware and Software FaultsInspecting the Power Supply Fuse Replacing the Backup Battery Erasing Stored Data Storing Relays That are Taken Out of Service Preset OptionsReset Counters ? What To Do With Defective RelaysThis page intentionally blank Method of Operation Figure A-1Hardware Structure of the 7SA511 Relay Figure A-18. Power Swing 7SA511 Line Protection Relay Overview of Hardware and Protection Functions Power System Bus Distance Protection Overview Voltage SubsystemGround Fault Detection and Processing Overcurrent Fault Detection PHASE-PHASE Polygonal Impedance Fault Detection OptionalPhase angle with the R intersection applicable Voltage Controlled Overcurrent Fault Detection Optional Resultant Annunciation Loop Fault Detection Module Measured Ground Fault Current Voltage − I L Is replaced by Which gives us Fault Loop Determination in Grounded Systems Fault Detection Phases 2PH-E Flts = PHASE-PHASE Leading PH-E Lagging PH-E Fault Loop Determination in Ungrounded Systems Optional3PH Faults = Control 3PH Faults = PH-E only