VT Circuits | Siemens 7SA511 specs

7SA511 Line Protection Relay

Installation

4.8.2Current Transformer (CT) and Voltage Transformer (VT) Connection Diagrams The CT and VT connection diagrams included in this section are listed below.

Figure 4-13. CT Circuits

Figure 4-14. VT Circuits

4-18	July 27, 1995

Image 78

Siemens 7SA511 manual VT Circuits

Contents

7SA511 Numerical Line Protection Relay Page Table of Contents July 27 Table of Contents List of Figures This page intentionally blank Using This Manual If you want toThen read Glossary of Terms and Abbreviations Abbreviations and Acronyms Terms Reverse PickupReclaim time Stage Ground fault detection input Line Protection Relay 7SA511 This page intentionally blank Product Description 7SA511 Line Protection Relay Product Description About the Relay Relay Features Relay Setting Types LCD Text Relay Setting Descriptions by Address BlockAddress Description 4000 Annunciations Operational Annunciations Last Fault Overview of Protection Functions FeatureFault detection options Distance Protection Feature Power Swing Protection optional Emergency Overcurrent ProtectionPilot Protection High-Resistance Ground Fault Protection optional Distance-to-Fault Location Automatic Reclose optional Serial Data Ports Additional Functions and Features of the RelaySecured Data Storage Front Panel Port Multiple Parameter Sets optional Acceptance Tests 7SA511 Line Protection Relay Acceptance Tests IEC Ansi Test Equipment Rated VoltageInrush peak Energizing the Relay Reading the Initial Display Verifying the Language Setting Or Direkteadresse Relay Settings for Acceptance Tests If the display shows Then Power 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. No Voltage Metering Test Voltage Input Connections Addr. No LCD TextTolerance Index No Binary Input TestAddr Input Minus LED Test Addr 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 Setting Voltage-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 Zones Setting 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 Putt Pott Mode Setting at AddressPutt Mode Action Zone Expected Result Permissive Overreach Transfer Trip Pott Emergency Overcurrent Protection Test Revers Interlock Initial Setup High-Set OvercurrentDIST. PROT. NON-EXIST EMERG. O/C Exist Overcu rent T Procedure Definite Time Ov rcurrent Protection High-Set Definite Time FNo Input/Output Units Testing the Automatic Reclose AR Function Optional Inverse Time Prerequisite Settings Addr LCD Text Description End of Acceptance Testing This page intenionally blank Installation 7SA511 Line Protection Relay Installation Receiving and Handling the Relay 7SA511 Preparing the Relay for Installation Storing the Relay Removing/Installing Relay Modules Removing the Relay’s Front Cover Removing 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 a Connecting the Relay to Your System General Connection Drawings Line-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 Panel Keypad 7SA511 Nameplate On/Off switchDisplay Panel LEDs General 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 Key Changing a S tting You wa to choose is displayed on the LCD Saving New Settings Step Action Result By use of the keyEnabling the Relay for Substation Control Optional Addr LCD Text Description PresetWaveform Capture Settings Options/Range Fault detection pickup Trip command If address 2802 setting is Baud Relay Scope of Functions Section Operating SettingsOptions Operating Parameters MM/DD/YYYY By Trip Command Language OPER. Baud Date Format Fault IndicDD.MM.YYYY By Fault Detec English Set Time Real-Time ClockDate Difference Time Synchronizing the Clock Parameter Changeover Optional Accesses this parameter set Configuring a Parameter SetConfiguring Each Parameter in Each Set PARAM.C/O Copying Parameter Sets Address Copy Action Selecting the Active Parameter Set System Settings Power System SettingsDeactivating Parameter Changeover Settings for Measured Value Monitoring Distance Protection Settings Fuse Fail Fault 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 Z1L Overcurrent 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 RAE Determination of the Fault Loop for Grounded Systems Preset Options/RangeLCD Text Description L3L1 Acyclic Power Swing Protection 2000 OptionalPhase Pref Exist Impedance Zone Exist Addr LCD Text Description Preset Permissive Underreach Transfer Z1B Acceleration Putt Mode SEND-PRL REC-PROL SEND-DELPermissive Overreach Transfer OFF FD Acceleration Z1B Release Pott Mode Transblo Wait TB SEND-PRLSEND-DEL Echo ECHO-DEL ECHO-IMP ECHO-BLO Forwards MAN. Close Stage Earthfault Exist Compensated IsolatedCT ERR CT ERR. F1 CT ERR. F2 Directional Protection With Nondirectional Backup Directional D.T. Solidly Earthed Block DirectDirection NON-DIR DIREC. Comparison Solidly Earthed Charac Description PresetNondirectional, Inverse Time Overcurrent Protection Normal Inverse Device 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 Description See Section Turning the Relay Functions On and OffFunction Compar Echo Configuration Settings Procedure for Configuring the Logical Functions BelowFAILU. RELAY424V LCD Text 2nd line PresettingsAddr Unit Index No AR on no AR OFF no LED 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 Log LCD Text 2nd line Description Possible Tag Storage and Display DescriptionEvent Log Messages Binary Inputs General Monitoring Functions Automatic Reclose Function Power Swing FunctionGround Fault Protection Circuit Breaker Test Function Table Status Target Log for All Systems 5200, 5300, Example Sys em Fault Messages 7SA511 Line Protection Re ay Chapter Command. DisTrip46 23C Target Log Messages LCD Text 2nd line DescriptionDistance Protection Emergency Overcurrent Protection Fault LocationHigh-Resistance Ground Fault Protection in Grounded Systems Automatic Reclose Began. E/FDetection002104357 C Isolated Ground Fault Data Log Messages Circuit Breaker Operation Statistics Reading the Measured Values Operational Measured Values As a percentage of VN Primary specified at address Max. Rec. Time After Pickup Access Start End PortWaveform Capture Total Maximum Recording Time 33..100 Commissioning the Relay 7SA511 Line Protection Relay Commissioning the Relay Verifying the Installation and Relay Configuration Relay Commissioning Tests Summation Error Current, Voltage, and Phase Sequence ChecksSymmetry Error Guidelines for Commissioning the Relay Phase Sequence Check Directional Test Using Load Current Test Procedure Measurement Loop July 27 Overreach Zone Comparison Via Pilot Wires Checking the Carrier Transmission System Reverse Interlocking Teleprotec Pott ModeOverreach Pilot Wire Comp Overreach Revers Interlock Carrier Transmission With Release Signal Carrier Transmission With Blocking Signal Carrier Transmission With Underreach Transfer SignalOverreach Z1B Blocking If address 2102 setting is DIREC.COMPARISON OFF Circuit Breaker Trip Test CB Auxiliary Contact Control 4401 4402 4403 4404 LCD Text & Description Setting Options & DescriptionsAutomatic Reclose Test 4300 Optional AUTO-RECL TestProcedure LCD ext Returning the Relay o Op rating Status This 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 Relays This 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 Overview Ground Fault Detection and Processing Overcurrent Fault Detection Polygonal Impedance Fault Detection Optional PHASE-PHASE Phase 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