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Siemens 7SA511 manual Checking the Carrier Transmission System

Models: 7SA511

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7SA511 Line Protection Relay

Commissioning the Relay

X

Positive reactive power

ZLoad

Direction

characteristicForwards

Active power

R

~45°

Reverse

Negative reactive power

ZLoad = Pactive + Preactive

I2I2

Figure 7-1.Load Impedance Vector.

7.3.3 Checking the Carrier Transmission System

The following functions are checked as part of this test process:

Overreach zone comparison via pilot wires

Reverse interlocking

Carrier transmission with release signal

Carrier transmission with blocking signal

Carrier transmission with underreach transfer signal

Carrier transmission for directional comparison ground fault protection

All of the equipment associated with transmission of signals should be commissioned in accordance with the documentation provided for that equipment.

Overreach Zone Comparison Via Pilot Wires

The overreaching zone comparison operating mode differs fundamentally from the other pilot protection systems in its transmission method (DC current, fail-safe loop). Skip this section if a different pilot protection method is used.

The line protection devices at both line ends must be in operation. At first the auxiliary voltage for the fail-safe current loop around the pilot wires should not be switched on.

7-8	July 27, 1995

Image 162

Siemens 7SA511 manual Checking the Carrier Transmission System, Overreach Zone Comparison Via Pilot Wires

Contents

7SA511 Numerical Line Protection Relay Page Table of Contents July 27 Table of Contents List of FiguresThis page intentionally blank Using This Manual If you want toThen read Glossary of Terms and Abbreviations Abbreviations and AcronymsTerms Reverse PickupReclaim time StageGround fault detection input Line Protection Relay 7SA511This page intentionally blank Product Description 7SA511 Line Protection Relay Product Description About the Relay Relay Features Relay Setting TypesLCD Text Relay Setting Descriptions by Address BlockAddress Description4000 Annunciations Operational Annunciations Last Fault Overview of Protection Functions FeatureFault detection options Distance ProtectionFeature Power Swing Protection optional Emergency Overcurrent ProtectionPilot Protection High-Resistance Ground Fault Protection optional Distance-to-Fault Location Automatic Reclose optionalSerial Data Ports Additional Functions and Features of the RelaySecured Data Storage Front Panel PortMultiple Parameter Sets optional Acceptance Tests 7SA511 Line Protection Relay Acceptance Tests IEC Ansi Test Equipment Rated VoltageInrush peak Energizing the Relay Reading the Initial DisplayVerifying the Language Setting Or DirekteadresseRelay Settings for Acceptance Tests If the display shows ThenPower Supply Test Power Consumption TestRelay Terminal Connections Test Equipment Relay Alarm Relay Contact Test Model No Metering TestsCurrent and Frequency Metering Test Current Input Connections Addr. NoVoltage Metering Test Voltage Input Connections Addr. No LCD TextTolerance Index No Binary Input TestAddr InputMinus LED TestAddr LCD Text 14. LED Test Current Input ConnectionsEMERG.O/C on Signal and Trip Relay Test Prerequisite Settings Addr LCD Text Testing the Fault Detection SystemsOvercurrent Fault Detection Test SettingVoltage-Controlled Overcurrent Fault Detection Test Optional Prerequisite Setting Addr. LCD Text Impedance Fault Detection Test optional Prerequisite Setting Addr LCD TextImpedance Zone VP/V = KRRAIP/IN Fault Type Testing the Distance ZonesSetting value X of the distance zone to be checked Independent Zones Z1, Z2, and Z3 Zone Test TypeOverreach Zones Z1B and Z1L Testing the Power Swing Blocking Function Optional Power Swing Exist PROGR. OUT-OF-STEP TripCoordination Times Test Signal Transmission TestAddr Setting Option Description Permissive Underreach Transfer Trip PuttPott Mode Setting at AddressPutt Mode Action Zone Expected Result Permissive Overreach Transfer Trip PottEmergency Overcurrent Protection Test Revers InterlockInitial Setup High-Set OvercurrentDIST. PROT. NON-EXIST EMERG. O/C Exist Overcu rent T Procedure Definite Time Ov rcurrent ProtectionHigh-Set Definite TimeFNo Input/Output UnitsTesting the Automatic Reclose AR Function Optional Inverse TimePrerequisite Settings Addr LCD Text Description End of Acceptance TestingThis page intenionally blank Installation 7SA511 Line Protection Relay Installation Receiving and Handling the Relay 7SA511Preparing the Relay for Installation Storing the RelayRemoving/Installing Relay Modules Removing the Relay’s Front CoverRemoving the basic module Removing the additional I/O moduleInserting the additional I/O module Inserting the basic module Printed Circuit Board LocationsChanging the Binary Input Voltage Range Installing the Backup Battery Battery Installation Procedure View a Mounting the Relay View aConnecting the Relay to Your System General Connection DrawingsLine-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 Introduction Operator PanelKeypad 7SA511Nameplate On/Off switchDisplay Panel LEDsGeneral Procedures for Programming the Relay Reserved Area for LED LabelsFront Serial Data Port KeyFunction Selecting an Dress Using the Navigation KeysPlacing the Relay in Programming Mode KeyChanging a S tting You wa to choose is displayed on the LCDSaving New Settings Step Action Result By use of the keyEnabling the Relay for Substation Control Optional Addr LCD Text Description PresetWaveform Capture Settings Options/RangeFault detection pickup Trip command If address 2802 setting is BaudRelay Scope of Functions Section Operating SettingsOptions Operating ParametersMM/DD/YYYY By Trip Command Language OPER. Baud Date Format Fault IndicDD.MM.YYYY By Fault Detec EnglishSet Time Real-Time ClockDate Difference TimeSynchronizing the Clock Parameter Changeover OptionalAccesses this parameter set Configuring a Parameter SetConfiguring Each Parameter in Each Set PARAM.C/OCopying Parameter Sets Address Copy Action Selecting the Active Parameter SetSystem Settings Power System SettingsDeactivating Parameter Changeover Settings for Measured Value Monitoring Distance Protection Settings Fuse FailFault Loop Earthed Network Fault Loop NON-EARTHED NET Addr. BlockZ1B Z1L General Settings Independent Zones Z1, Z2, Z3 Zone & Description Preset Controlled Overreach Zones Z1B and Z1LOvercurrent Fault Detection Settings Prerequisite Settings Addr. LCD TextZone & Description Voltage Controlled Overcurrent Fault Detection Exist U/IPROG. U/I PROG. ZA Polygonal Impedance Fault DetectionExist Impedance Zone RA1 RA2 RAEDetermination of the Fault Loop for Grounded Systems Preset Options/RangeLCD Text Description L3L1 Acyclic Power Swing Protection 2000 OptionalPhase Pref Exist Impedance Zone ExistAddr LCD Text Description Preset Permissive Underreach TransferZ1B Acceleration Putt Mode SEND-PRL REC-PROL SEND-DELPermissive Overreach Transfer OFF FD AccelerationZ1B Release Pott Mode Transblo Wait TB SEND-PRLSEND-DEL Echo ECHO-DEL ECHO-IMP ECHO-BLO ForwardsMAN. Close StageEarthfault Exist Compensated IsolatedCT ERR CT ERR. F1 CT ERR. F2 Directional Protection With Nondirectional Backup Directional D.T. Solidly EarthedBlock DirectDirection NON-DIR DIREC. Comparison Solidly EarthedCharac Description PresetNondirectional, Inverse Time Overcurrent Protection Normal InverseDevice Configuration for Automatic Reclose OptionInternal AR Automatic Reclose Function Settings Addr LCD Text Description Preset Options/RangeTerminology Fault Location Settings Prerequisite Setting Addr LCD Text DescriptionSee Section Turning the Relay Functions On and OffFunction Compar EchoConfiguration Settings Procedure for Configuring the Logical FunctionsBelowFAILU. RELAY424V LCD Text 2nd line PresettingsAddr Unit Index No AR on no AR OFF noLED Binary Inputs Signal Relays LED IndicatorsTrip Relays This page intentionally blank Displaying System and Relay Information This page intentionally blank Using the Operator Panel to Display Information Ess. ANNUNCIATIONS5000 Event LogLCD Text 2nd line Description Possible Tag Storage and Display DescriptionEvent Log Messages Binary InputsGeneral Monitoring FunctionsAutomatic Reclose Function Power Swing FunctionGround Fault Protection Circuit Breaker Test FunctionTable Status Target Log for All Systems 5200, 5300,Example Sys em Fault Messages 7SA511 Line Protection Re ay ChapterCommand. DisTrip46 23C Target Log Messages LCD Text 2nd line DescriptionDistance Protection Emergency Overcurrent Protection Fault LocationHigh-Resistance Ground Fault Protection in Grounded Systems Automatic RecloseBegan. E/FDetection002104357 C Isolated Ground Fault Data Log Messages Circuit Breaker Operation StatisticsReading the Measured Values Operational Measured ValuesAs a percentage of VN Primary specified at address Max. Rec. Time After Pickup Access Start End PortWaveform Capture Total Maximum Recording Time33..100 Commissioning the Relay 7SA511 Line Protection Relay Commissioning the Relay Verifying the Installation and Relay Configuration Relay Commissioning TestsSummation Error Current, Voltage, and Phase Sequence ChecksSymmetry Error Guidelines for Commissioning the RelayPhase Sequence Check Directional Test Using Load CurrentTest Procedure Measurement LoopJuly 27 Overreach Zone Comparison Via Pilot Wires Checking the Carrier Transmission SystemReverse Interlocking Teleprotec Pott ModeOverreach Pilot Wire Comp Overreach Revers InterlockCarrier Transmission With Release Signal Carrier Transmission With Blocking Signal Carrier Transmission With Underreach Transfer SignalOverreach Z1B Blocking If address 2102 setting is DIREC.COMPARISON OFFCircuit Breaker Trip Test CB Auxiliary Contact Control4401 4402 4403 4404 LCD Text & Description Setting Options & DescriptionsAutomatic Reclose Test 4300 Optional AUTO-RECLTestProcedure LCD ext Returning the Relay o Op rating StatusThis page intentionally blank Maintenance 7SA511 Line Protection Relay Maintenance Electrostatic Discharge Possible equipment damage Tracing Hardware and Software Faults Inspecting the Power Supply FuseTroub eshooting Tips Replacing the Backup Battery Erasing Stored Data Reset Counters ? Preset OptionsStoring Relays That are Taken Out of Service 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 Voltage Subsystem Distance Protection OverviewGround Fault Detection and Processing Overcurrent Fault Detection Polygonal Impedance Fault Detection Optional PHASE-PHASEPhase 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 3PH Faults = Control Fault Loop Determination in Ungrounded Systems Optional2PH-E Flts = PHASE-PHASE Leading PH-E Lagging PH-E 3PH Faults = PH-E only