1. SR489 Generator Management Relay
4/16/2017
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.

2. Outline Overview Theory Hardware Wiring Software Testing SR489
4/16/2017
Outline
Overview
Theory
Hardware
Wiring
Software
Testing

3. SR489
4/16/2017
Overview

4. SR489 Generator Management Relay
4/16/2017
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
4/16/2017
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. SR489
4/16/2017
Theory

7. SR489
4/16/2017
Show Generator Theory General Overview and Typical System from Training CD

8. Internal and External Short Circuits
SR489
4/16/2017
Generator Protection
Internal and External Short Circuits

9. Generator Protection Review
SR489
4/16/2017
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

10. Abnormal Operating Conditions
SR489
4/16/2017
Generator Protection
Abnormal Operating Conditions

11. Small Machine Protection IEEE Buff Book
SR489
4/16/2017
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 >600V

12. Small Machine Protection IEEE Buff Book
SR489
4/16/2017
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

13. Small Machine Protection IEEE Buff Book
SR489
4/16/2017
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

14. Large Machine Protection IEEE C37.102
SR489
4/16/2017
Large Machine Protection IEEE 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

15. SR489 Protection Functions
4/16/2017
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. Desirable Attributes - Generator
SR489
4/16/2017
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
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

17. Desirable Attributes - Generator
SR489
4/16/2017
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!

18. Line – Ground faults – Delta Connected Generator
SR489
4/16/2017
Line – Ground faults – Delta Connected Generator

19. Line – Ground faults – Wye Connected Generator
SR489
4/16/2017
Line – Ground faults – Wye Connected Generator

20. SR489 Protection Functions
4/16/2017
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
4/16/2017
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 13

22. SR489 Protection Functions
4/16/2017
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 13

23. SR489
4/16/2017
Hardware

24. SR489 Generator Management Relay
4/16/2017
SR489 Generator Management Relay
Ordering
489 * * * * * 489 Generator Management Relay
P Amp Phase CT Secondary Inputs
P Amp Phase CT Secondary Inputs
LO VCD, 20-48VAC Control Power
HI VDC, VAC Control Power
A mA Analog Outputs
A mA Analog Outputs
- - Basic Display
E - Enhanced Display – Larger LCD
T - Enhanced Display with Ethernet (10-Base-T)
H Harsh (chemical) environmental conformal coating

25. SR489 Physical Access Points
4/16/2017
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 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

26. SR489 Physical Interface SR489 4/16/2017 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. SR489
4/16/2017
LEDs

28. SR489
4/16/2017
Wiring

29. SR489
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30. SR489
4/16/2017

31. SR489
4/16/2017

32. SR489
4/16/2017

33. SR489
4/16/2017
Software

34. SR489
4/16/2017
Example

35. ”The most powerful relay management tool”
SR489
4/16/2017
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 notification on new updates
Scheduled downloads of all new document & software releases
”The most powerful relay management tool”

36. Simply the most powerful way to manage your SR489
4/16/2017
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

37. SR489 EnerVista Setup Program
4/16/2017
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

38. Simplifying every aspect of customer interaction
SR489
4/16/2017
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

39. Simplifying every aspect of customer interaction
SR489
4/16/2017
SR489 Viewpoint Monitoring
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
Simplifying every aspect of customer interaction

40. SR489 Viewpoint Maintenance
4/16/2017
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

41. SR489 Generator Maintenance & Diagnostics
4/16/2017
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

42. SR489 Generator Monitoring
4/16/2017
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

43. Security strategy – conforms to industry and regulated guidelines
SR489
4/16/2017
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

44. Demo the software Connecting to relay Uploading settings
SR489
4/16/2017
Demo the software
Connecting to relay
Uploading settings
Downloading settings
File compare
Settings
Active verses setting group
Digital input > predefined > dual setpoints

45. SR489
4/16/2017
Testing

46. SR489 Simplified Testing Simulation Mode
4/16/2017
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

47. SR489
4/16/2017
Questions?