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SR489 Generator Management Relay

SR489 Generator Management Relay. Economical protection, metering, and monitoring functions for small and medium sized generators . Presented by: John Levine, P.E. Levine Lectronics and Lectric, Inc. John@L-3.com 770 565-1556. Overview Theory Hardware Wiring Software Testing.

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SR489 Generator Management Relay

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  1. SR489Generator Management Relay Economical protection, metering, and monitoring functions for small and medium sized generators. Presented by: John Levine, P.E. Levine Lectronics and Lectric, Inc. John@L-3.com 770 565-1556

  2. Overview Theory Hardware Wiring Software Testing Outline

  3. Overview

  4. SR489 Generator Management Relay Product Overview • Suitable for protecting Induction and Synchronous Generator • Generator Protection Features • Drawout Case Installation • Hardware • Communications • EnerVista Software • Fault Diagnostics • Metering • Testing and Commissioning • Ordering

  5. SR489 Generator Management Relay Product Overview • Ideal Protection for Induction and Synchronous Generators at 25, 50 and 60Hz • Complete Generator Protection including: • Generator Stator Differential • 2 Zone Distance Backup • 100% Stator Ground • High speed sampling, 12 samples per cycle • Drawout Case Installation • Powerful Fault Recording: Waveform, Sequence of Events • Ethernet and Serial Communications • EnerVista Suite of Software supported • Metering of all important parameters

  6. Theory

  7. Show Generator Theory General Overview and Typical System from Training CD

  8. Internal and External Short Circuits Generator Protection

  9. Abnormal Operating Conditions Loss of Synchronism Abnormal Frequency Overexcitation Field Loss Inadvertent Energizing Breaker Failure Loss of Prime Mover Power Blown VT Fuses Open Circuits Generator Protection Review

  10. Abnormal Operating Conditions Generator Protection

  11. Small – up to 1 MW to 600V, 500 kVA if >600V Small Machine Protection IEEE Buff Book 32 Reverse Power 40 Loss of Excitation 51V voltage restraint 51G Ground overcurrent 87 Differential

  12. Medium – up to 12.5 MW Small Machine Protection IEEE Buff Book 32 Reverse Power 40 Loss of Excitation 46 Negative Sequence 51V voltage restraint 51G Ground overcurrent 87 Differential

  13. Large – up to 50 MW Small Machine Protection IEEE Buff Book 32 Reverse Power 40 Loss of Excitation 46 Negative Sequence 49 Thermal Overload 51V voltage restraint 51G Ground overcurrent 64 Ground Relay 87 Differential

  14. Unit Connected, High Z Grounded Large Machine ProtectionIEEE C37.102 32 Reverse Power 40 Loss of Excitation 46 Negative Sequence 49 Thermal Overload 51V voltage restraint 51G Ground overcurrent 64 Ground Relay 87 Differential

  15. SR489 Protection Functions • Protection Functions Include: • Generator Stator Differential • Backup Distance Protection • 100% Stator Ground • Generator Unbalance • Loss of Excitation • Accidental Energization • Breaker Fail • Phase Overcurrent – Voltage Restraint • Neutral Inst. / Timed Overcurrent • Neg. Sequence Overcurrent • Under / Over Voltage • Under / Over Frequency • Generator Thermal Model • RTD Temperature • Overexcitation – Volts/Hertz

  16. Reverse Power (32) Should be sensitive to 0.05 pu to properly detect motoring in large steam turbines Existing E/M and Static relays not sensitive enough May cause shutdown difficulties Negative Sequence (46) Should be sensitive to low values to detect open poles/conductors on system after GSU Existing E/M and Static relays not sensitive enough Long time low level events may cause excessive rotor heating, thermal tripping and damage rotor 100% Stator Ground (59N / 59D) Protects all of the stator winding Existing schemes typically only see 90% Stop low level fault near neutral from degrading into a high level fault and causing large amounts of damage Very secure Desirable Attributes - Generator

  17. Inadvertent Energizing (50/27) High speed tripping of unit after breaker accidentally closed on dead machine, also pole flashover prior to syncing Most existing schemes do not incorporate Many schemes fail due to complexity (reliance on breaker auxiliary switches, yard distance relays, etc. If breaker is not tripped rapidly, mechanical and electric damage can occur to machine in fractions of a second! Pole flashovers must be cleared by high speed breaker failure, as the breaker is open! Desirable Attributes - Generator

  18. Line – Ground faults – Delta Connected Generator

  19. Line – Ground faults – Wye Connected Generator

  20. SR489 Protection Functions Generator Stator Differential • Stator Phase Differential • Dual Slope Percent Restraint Operating Characteristic • Directional Supervision under saturation conditions Distance Backup Protection • 2 Zone Mho Distance Protection • Backup for primary line protection • Configurable Reach and Angle Distance Characteristic Dual Slope Phase Differential 100% Stator Ground Protection • 95% Fundamental OverVoltage • 15% Third Harmonic UnderVoltage Two Zone Distance Backup

  21. SR489 Protection Functions Voltage Protection • Phase Overvoltage • Phase Undervoltage • Neutral Overvoltage (fundamental) • Neutral Undervoltage (3rd Harmonic) • Voltage Phase Reversal Current Protection • Phase, Ground and Negative Sequence Overcurrent Tripping • IEC, ANSI , IAC and Customizable Overcurrent Curves • Voltage Restraint increasing sensitivity under low voltage conditions Voltage Restraint Overcurrent Frequency Protection • Overfrequency • Underfrequency Undervoltage Trip Curves

  22. SR489 Protection Functions Thermal Protection • Generator Thermal Model • RTD Alarming and Tripping • RTD Biased Thermal Model Inadvertent Energization (show Training CD) • Prevents Accidentally Closing a Stopped Generator onto a Live Line • Armed when Generator is Offline and Voltage is below a pre-set level Thermal Model – Voltage Dependant Overload Curves Loss of Excitation (show Training CD) • Uses Impedance Circle for loss of excitation detection • 2 Zones for fault detection and control Volt/Hertz (Overexcitation) • Detects changes in the Volts/Hertz ratio of the generator or associated transformer Loss of Excitation

  23. Hardware

  24. 489 * * * * * 489 Generator Management Relay P1 - - - - 1 Amp Phase CT Secondary Inputs P5 - - - - 5 Amp Phase CT Secondary Inputs LO - - - 20-60VCD, 20-48VAC Control Power HI - - - 80-300VDC, 70-265VAC Control Power A1 - - 0-1 mA Analog Outputs A20 - - 4-20 mA Analog Outputs - - Basic Display E - Enhanced Display – Larger LCD T - Enhanced Display with Ethernet (10-Base-T) H Harsh (chemical) environmental conformal coating SR489 Generator Management Relay Ordering

  25. 6 Form-C Output Relays 10ms Operate Time Make and Carry 30A for 0.2 sec. Carry 10A Continuous 9 Contact Inputs Opto-isolated Dry Contacts 12 RTD Inputs 100 Ω Platinum 100 Ω Nickel 120 Ω Nickel 10 Ω Copper 4 programmable analog outputs 4-20 or 0-1 mA (as ordered) 29 programmable parameters Pulse Output Configurable Pulse Output based on + kwh, +kvarh, –kvarh SR489 Physical Access Points Hardware Connections

  26. SR489 Physical Interface • Minimize replacement time • Large LCD Display • Self description • Security Audit Trail • Revision control/history • Alarm indication • Asset status • System Status • Protection, metering, control • Event recorder • Data logger • Waveform analysis • RS232 serial port • Dedicated control keys • Full numerical keypad

  27. LEDs

  28. Wiring

  29. Software

  30. Example

  31. SR489 EnerVista Software EnerVista Launchpad – Easy to use Device Setup and Document Management Toolset • Comprehensive data for fault & system analysis • Complete archive of up-to-date documents & software • Single application for configuring all devices • Automatic email notification on new updates • Scheduled downloads of all new document & software releases ”The most powerful relay management tool”

  32. SR489 EnerVista Launchpad • Settings configuration • Intuitive protection settings • Document library & update • Metering • Local HMI • Status of all inputs and outputs • Real-time monitoring of phasors • Troubleshooting • Search and sorts of event records • COMTRADE waveform viewer • Real time data logging • Role Based Security • Restricted access to relay Simply the most powerful way to manage your SR489

  33. SR489 EnerVista Setup Program EnerVista SR489 Setup Program • Plug-And-Play communications • Setpoint Configuration • Metering Values • Record Retrieval • Oscillography Viewing • Event Recorder Viewing • Setting File Management • Printing Setting Files • Simulation mode for testing/training • SR489 Firmware Upgrading

  34. SR489 EnerVista Viewpoint Premium Monitoring, Engineering, & Maintenance Toolsets • Viewpoint Monitoring • Monitoring, control, trending, alarming & fault data recording • Viewpoint Engineer • Programming, testing & commissioning • Viewpoint Maintenance • Status & security reports, fault diagnostics & fault data collection Simplifying every aspect of customer interaction

  35. SR489 Viewpoint Monitoring • Remotely monitor the relay in real-time • . . . Easy to use, one tool for: • Plug & play screens for instant monitoring • Single-line monitoring • Annunciator alarming • Trending • Automatic fault data collection Viewpoint Monitoring Simplifying every aspect of customer interaction

  36. SR489 Viewpoint Maintenance Viewpoint Maintenance • Device Health and Security Reporting • Single click retrieval of fault data • Setting security report showing history of setting changes • Health report showing status of protective device Simplifying every aspect of customer interaction

  37. SR489 Generator Maintenance & Diagnostics Generator Statistical Data • Total Generator Running Hours • Number of Generator Trips • Number of Breaker Operations Generator Fault Recording • Last Trip & Pre-Trip data Report • Sequence of Event Report – 256 Events • Waveform Fault Capture • Automatic Triggering • Up to 128 Cycles in length • Up to 16 separate Fault Incidents • Records 16 Analog data channels

  38. Voltage (Phase to Phase & Phase to Line) Phase and Ground Current Differential Current Negative Sequence Current Frequency % Generator Load % Generator Current Unbalance Power (MW, Mvar, MVA) Energy (MWh, Mvarh) Power Factor Demand RTD Temperature Speed (Tachometer) Breaker Status SR489 Generator Monitoring Metering & Monitoring

  39. SR489 Enhanced Security Prevents Unauthorized Access and Provide Traceability • Security Audit Trail • Date and time of hardware, firmware or setting changes to your relays • Logging of the MAC address of computers and users making settings changes • Track method of how settings changes were made (i.e. keypad, serial port, ethernet) • Date/time security report was generated • Description of the GE Multilin Relay • Summary of the last time the configuration was changed • History of last 10 occurrences the configuration was changed Security strategy – conforms to industry and regulated guidelines

  40. Connecting to relay Uploading settings Downloading settings File compare Settings Active verses setting group Digital input > predefined > dual setpoints Demo the software

  41. Testing

  42. SR489 Simplified Testing Simulation Mode • Allows testing without external test equipment • Simulates all Current and Voltage injection • Simulate Pre-fault conditions • Simulate Fault Conditions • Verify protection element operation • Analyze simulated waveforms and relay actions • Test output relays • Test analog inputs Ideal for verifying configuration….and for training employees

  43. Questions?

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