Siemens 7SA511 guide

7SA511 Line Protection Relay

Chapter 4

			Bus
				7SA511
L1	L2	L3	IL1	3A1
				3A1
				3A2
			IL2	2A1
				2A1
				2A2
			IL3	1A1
				1A1
				1A2
			IE	1D1
				1D2

Line

3 phase CTs with residual connection

for ground faults

			Bus	7SA511
				7SA511
L1	L2	L3	IL1	3A1
				3A1
				3A2
			IL2	2A1
				2A1
				2A2
			IL3	1A1
				1A1
				1A2

Line	IE
	IE
IE from	1D1
IE from
parallel line	1D2

3 phase CTs with parallel line ground current

Figure 4-13. CT Circuits

			Bus
				7SA511
L1	L2	L3	IL1	3A1
				3A1
				3A2
			IL2	2A1
				2A1
				2A2
			IL3	1A1
				1A1
				1A2
			IE	1D1
				1D1
				1D2
	Line

3 phase CTs with summation transformer

for ground faults

			Bus
				7SA511
L1	L2	L3	IL1	3A1
				3A1
				3A2
			IL2	2A1
				2A1
				2A2
			IL3	1A1
				1A1
				1A2
			IE	1D1
				1D2
	Line

2 phase CTs with summation transformer for ground faults in ungrounded systems

July 27, 1995

4-19

Image 79

Siemens 7SA511 manual Phase CTs with residual connection For ground faults

Contents

7SA511 Numerical Line Protection Relay Page Table of Contents July 27 List of Figures Table of Contents This page intentionally blank If you want to Using This ManualThen read Abbreviations and Acronyms Glossary of Terms and Abbreviations Terms Stage PickupReclaim time Reverse Line Protection Relay 7SA511 Ground fault detection input This page intentionally blank Product Description 7SA511 Line Protection Relay Product Description About the Relay Relay Setting Types Relay Features Description Relay Setting Descriptions by Address BlockAddress LCD Text 4000 Annunciations Operational Annunciations Last Fault Distance Protection FeatureFault detection options Overview of Protection Functions Feature Emergency Overcurrent Protection Power Swing Protection optionalPilot Protection High-Resistance Ground Fault Protection optional Automatic Reclose optional Distance-to-Fault Location Front Panel Port Additional Functions and Features of the RelaySecured Data Storage Serial Data Ports Multiple Parameter Sets optional Acceptance Tests 7SA511 Line Protection Relay Acceptance Tests IEC Ansi Rated Voltage Test EquipmentInrush peak Reading the Initial Display Energizing the Relay Or Direkteadresse Verifying the Language Setting If the display shows Then Relay Settings for Acceptance Tests Power Consumption Test Power Supply TestRelay Terminal Connections Test Equipment Relay Alarm Relay Contact Test Current Input Connections Addr. No Metering TestsCurrent and Frequency Metering Test Model No Voltage Input Connections Addr. No LCD Text Voltage Metering TestTolerance Input Binary Input TestAddr Index No LED Test Minus 14. LED Test Current Input Connections Addr LCD TextEMERG.O/C on Signal and Trip Relay Test Setting Testing the Fault Detection SystemsOvercurrent Fault Detection Test Prerequisite Settings Addr LCD Text Voltage-Controlled Overcurrent Fault Detection Test Optional Prerequisite Setting Addr. LCD Text Prerequisite Setting Addr LCD Text Impedance Fault Detection Test optionalImpedance Zone VP/V = KRRAIP/IN Testing the Distance Zones Fault Type Setting value X of the distance zone to be checked Zone Test Type Independent Zones Z1, Z2, and Z3Overreach Zones Z1B and Z1L Power Swing Exist PROGR. OUT-OF-STEP Trip Testing the Power Swing Blocking Function OptionalCoordination Times Permissive Underreach Transfer Trip Putt Signal Transmission TestAddr Setting Option Description Test Permissive Overreach Transfer Trip Pott Setting at AddressPutt Mode Action Zone Expected Result Pott Mode Revers Interlock Emergency Overcurrent Protection Test High-Set Overcurrent Initial SetupDIST. PROT. NON-EXIST EMERG. O/C Exist Definite Time Ov rcurrent Protection Overcu rent T Procedure Definite Time High-Set Input/Output Units FNo Inverse Time Testing the Automatic Reclose AR Function Optional End of Acceptance Testing Prerequisite Settings Addr LCD Text Description This page intenionally blank Installation 7SA511 Line Protection Relay Installation 7SA511 Receiving and Handling the Relay Storing the Relay Preparing the Relay for Installation Removing the Relay’s Front Cover Removing/Installing Relay Modules Removing the additional I/O module Removing the basic moduleInserting the additional I/O module Printed Circuit Board Locations Inserting the basic moduleChanging the Binary Input Voltage Range Installing the Backup Battery Battery Installation Procedure View a View a Mounting the Relay General Connection Drawings Connecting the Relay to Your System 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 Operator Panel Introduction 7SA511 Keypad LEDs On/Off switchDisplay Panel Nameplate Reserved Area for LED Labels General Procedures for Programming the RelayFront Serial Data Port KeyFunction Key Using the Navigation KeysPlacing the Relay in Programming Mode Selecting an Dress You wa to choose is displayed on the LCD Changing a S tting Step Action Result By use of the key Saving New SettingsEnabling the Relay for Substation Control Optional Options/Range PresetWaveform Capture Settings Addr LCD Text Description Fault detection pickup Trip command Baud If address 2802 setting is Relay Scope of Functions Operating Parameters Operating SettingsOptions Section English Language OPER. Baud Date Format Fault IndicDD.MM.YYYY By Fault Detec MM/DD/YYYY By Trip Command Difference Time Real-Time ClockDate Set Time Parameter Changeover Optional Synchronizing the Clock PARAM.C/O Configuring a Parameter SetConfiguring Each Parameter in Each Set Accesses this parameter set Copying Parameter Sets Selecting the Active Parameter Set Address Copy Action Power System Settings System SettingsDeactivating Parameter Changeover Settings for Measured Value Monitoring Fuse Fail Distance Protection Settings Addr. Block Fault Loop Earthed Network Fault Loop NON-EARTHED NETZ1B Z1L General Settings Independent Zones Z1, Z2, Z3 Controlled Overreach Zones Z1B and Z1L Zone & Description Preset Prerequisite Settings Addr. LCD Text Overcurrent Fault Detection SettingsZone & Description Exist U/I Voltage Controlled Overcurrent Fault DetectionPROG. U/I RA1 RA2 RAE Polygonal Impedance Fault DetectionExist Impedance Zone PROG. ZA Preset Options/Range Determination of the Fault Loop for Grounded SystemsLCD Text Description Exist Impedance Zone Exist Power Swing Protection 2000 OptionalPhase Pref L3L1 Acyclic Permissive Underreach Transfer Addr LCD Text Description Preset OFF FD Acceleration Putt Mode SEND-PRL REC-PROL SEND-DELPermissive Overreach Transfer Z1B Acceleration Forwards Pott Mode Transblo Wait TB SEND-PRLSEND-DEL Echo ECHO-DEL ECHO-IMP ECHO-BLO Z1B Release Stage MAN. Close Exist Compensated Isolated EarthfaultCT ERR CT ERR. F1 CT ERR. F2 Directional D.T. Solidly Earthed Directional Protection With Nondirectional Backup DIREC. Comparison Solidly Earthed DirectDirection NON-DIR Block Normal Inverse Description PresetNondirectional, Inverse Time Overcurrent Protection Charac Option Device Configuration for Automatic RecloseInternal AR Addr LCD Text Description Preset Options/Range Automatic Reclose Function SettingsTerminology Prerequisite Setting Addr LCD Text Description Fault Location Settings Compar Echo Turning the Relay Functions On and OffFunction See Section Procedure for Configuring the Logical Functions Configuration Settings BelowFAILU. RELAY424V AR on no AR OFF no PresettingsAddr Unit Index No LCD Text 2nd line LED Binary Inputs LED Indicators Signal RelaysTrip Relays This page intentionally blank Displaying System and Relay Information This page intentionally blank Using the Operator Panel to Display Information Event Log Ess. ANNUNCIATIONS5000 Binary Inputs Storage and Display DescriptionEvent Log Messages LCD Text 2nd line Description Possible Tag Monitoring Functions General Circuit Breaker Test Function Power Swing FunctionGround Fault Protection Automatic Reclose Function Target Log for All Systems 5200, 5300, Table Status 7SA511 Line Protection Re ay Chapter Example Sys em Fault Messages Command. DisTrip46 23C LCD Text 2nd line Description Target Log MessagesDistance Protection Automatic Reclose Fault LocationHigh-Resistance Ground Fault Protection in Grounded Systems Emergency Overcurrent Protection Began. E/FDetection002104357 C Circuit Breaker Operation Statistics Isolated Ground Fault Data Log Messages Operational Measured Values Reading the Measured Values As a percentage of VN Primary specified at address Total Maximum Recording Time Access Start End PortWaveform Capture Max. Rec. Time After Pickup 33..100 Commissioning the Relay 7SA511 Line Protection Relay Commissioning the Relay Relay Commissioning Tests Verifying the Installation and Relay Configuration Guidelines for Commissioning the Relay Current, Voltage, and Phase Sequence ChecksSymmetry Error Summation Error Directional Test Using Load Current Phase Sequence Check Measurement Loop Test Procedure July 27 Checking the Carrier Transmission System Overreach Zone Comparison Via Pilot Wires Overreach Revers Interlock Teleprotec Pott ModeOverreach Pilot Wire Comp Reverse Interlocking Carrier Transmission With Release Signal Carrier Transmission With Underreach Transfer Signal Carrier Transmission With Blocking SignalOverreach Z1B Blocking DIREC.COMPARISON OFF If address 2102 setting is CB Auxiliary Contact Control Circuit Breaker Trip Test 4401 4402 4403 4404 AUTO-RECL Setting Options & DescriptionsAutomatic Reclose Test 4300 Optional LCD Text & Description TestProcedure Returning the Relay o Op rating Status LCD ext This page intentionally blank Maintenance 7SA511 Line Protection Relay Maintenance Electrostatic Discharge Possible equipment damage Inspecting the Power Supply Fuse Tracing Hardware and Software FaultsTroub eshooting Tips Replacing the Backup Battery Erasing Stored Data What To Do With Defective Relays Preset OptionsStoring Relays That are Taken Out of Service Reset Counters ? 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 Distance Protection Overview Voltage Subsystem Ground Fault Detection and Processing Overcurrent Fault Detection PHASE-PHASE Polygonal Impedance Fault Detection Optional 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 = PH-E only Fault Loop Determination in Ungrounded Systems Optional2PH-E Flts = PHASE-PHASE Leading PH-E Lagging PH-E 3PH Faults = Control