SR489 Generator Management Relay

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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_at_L-3.com 770
565-1556
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Outline

• Overview
• Theory
• Hardware
• Wiring
• Software
• Testing

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• Overview

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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

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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

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• Theory

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Show Generator Theory General Overview and
Typical System from Training CD
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Generator Protection

• Internal and External Short Circuits

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Generator Protection Review

• 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

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Generator Protection

• Abnormal Operating Conditions

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Small Machine Protection IEEE Buff Book
32 Reverse Power 40 Loss of Excitation 51V
voltage restraint 51G Ground overcurrent 87
Differential

• Small up to 1 MW to 600V, 500 kVA if gt600V

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Small Machine Protection IEEE Buff Book
32 Reverse Power 40 Loss of Excitation 46
Negative Sequence 51V voltage restraint 51G
Ground overcurrent 87 Differential

• Medium up to 12.5 MW

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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

• Large up to 50 MW

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Large Machine ProtectionIEEE C37.102

• Unit Connected,
• High Z Grounded

32 Reverse Power 40 Loss of Excitation 46
Negative Sequence 49 Thermal Overload 51V voltage
restraint 51G Ground overcurrent 64 Ground
Relay 87 Differential
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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

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Desirable Attributes - Generator

• 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

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Desirable Attributes - Generator

• 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!

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Line Ground faults Delta Connected Generator
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Line Ground faults Wye Connected Generator
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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
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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
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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
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• Hardware

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SR489 Generator Management Relay
Ordering

• 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

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SR489 Physical Access Points
Hardware Connections

• 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 O Platinum
• 100 O Nickel
• 120 O Nickel
• 10 O 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

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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

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LEDs
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• Wiring

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• Software

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Example
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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
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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
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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

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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
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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
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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
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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

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SR489 Generator Monitoring
Metering Monitoring

• 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

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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
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Demo the software

• Connecting to relay
• Uploading settings
• Downloading settings
• File compare
• Settings
• Active verses setting group
• Digital input gt predefined gt dual setpoints

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• Testing

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Simulation Mode
SR489 Simplified Testing

• 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
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Questions?