Generator Protection 55 g Multilin • Secure, high-speed protection elements for complete generator protection, compliant with IEEE C37.102 • Complete IEC 61850 Process Bus solution providing resource optimization and minimizing total P&C lifecycle costs • Advanced fault and disturbance recording, including internal relay operating signals thus eliminating the need for external recording devices • Robust network security enabling Critical Infrastructure Protection through user command logging, and dual permission access control • Advanced automation capabilities for providing customized protection and control solutions • Phasor Measurement Unit - Synchronised phasor information according to IEEE C37.118 standard • Available Ethernet Global Data (EGD) eases integration with new and existing GE Energy control systems • Reduced relay to relay wiring and associated installation costs through high-speed inter-relay communications • Ambient temperature monitoring with alarming when outside temperature exceeds upper thresholds • Medium to large generators typically driven by steam, gas or hydraulic turbines • Pumped Storage generators used as pumping motors for reservoir storage • Stand-alone protection or component in automated substation control system • Standard protection product offering on new General Electric generator installations. • Metering - current, voltage, power, energy, frequency • Oscillography – analog and digital parameters at 64 samples/cycle • Event Recorder - 1024 time tagged events with 0.5ms scan of digital inputs • Data Logger - 16 channels with sampling rate up to 1 sample / cycle • Advanced relay health diagnostics • Synchronised measurement of voltage & current and sequence component phasors - 1 to 60 phasors/sec Monitoring and Metering • Robust communications with up to 8 HardFiber Bricks • Seamless integration with existing G60 functions • Redundant architecture for dependability and security IEC 61850 Process Bus Interface Protection and Control • Generator stator differential • 100% stator ground protection • Loss of excitation • Power swing blocking and out-of-step tripping • Backup distance • Reverse / low forward power • Restricted ground fault • Overexcitation • Generator unbalance • Split phase protection • Phase sequence reversal for pumped storage Communications • Networking interfaces – 100Mbit Fiber Optic Ethernet, RS485, RS232, RS422, G.703, C37.94 • Multiple Protocols - IEC61850, DNP 3.0 Level 2, Modbus RTU, Modbus TCP/IP, IEC60870-5-104, Ethernet Global Data (EGD) • Direct I/O – secure, high-speed exchange of data between URs for Direct Transfer Trip and I/O Extension applications • Embedded Managed Ethernet Switch with 4 - 100 Mbit Fiber optic ports and 2 copper ports FEATURES G60 GENERATOR PROTECTION SYSTEM Comprehensive protection for generators FEATURES APPLICATIONS KEY BENEFITS EnerVista™ Software • Graphical Logic Designer and Logic Monitor to simplify designing and testing procedures • Document and software archiving toolset to ensure reference material and device utilities are up-to-date • EnerVista™ Integrator providing easy integration of data in the G60 into new or existing monitoring and control systems
Protection and ControlThe G60 Generator Protection Systemprovides comprehensive protection formediumand large generators, includinglarge steam and combustion turbines,combined-cycle generators and multi-circuit hydro units. The G60 includesadvancedautomationandcommunicationcapabilities, extensive I/O options, andpowerfulfaultrecordingfeaturesthatcansimplifypostmortemdisturbanceanalysisand helpminimize generator downtime.AspartoftheURFamily,theG60providessuperior protection and control thatincludes:
Generator stator Differential
High-speed stator differential protectionprovides sub-cycle detection and highspeed clearing of stator phase faults.Advanced CT saturation detectionalgorithms maintain immunity to highcurrentACandlowcurrentDCsaturationconditionsthatmayoccurduetoexternaldisturbancessuchas transformer inrushorneargeneratorfaultswithoutsacrificingspeedorsensitivity.
100% stator Ground
100% stator ground fault protection isprovided through a voltage differentialfeaturethatrespondstotheunbalanceofthethirdharmonicatthemachineterminalsandat theneutral point . Thismethod is
50G64REF 51G
64TN
51P 51N 46 67P 67N67_2 68 78
24 59P27P 59_2
Metering
TRIPSUPERVISED CLOSE
32 50/2740
59N 81U81O
27TN 59X27X
G60 Generator Protection System
G
52
R
87
50N
81R
50P21P
25
DEVICENUMBER
21P242527P27TN27X32404650G50N50P50SP50/2751G
Phase Distance BackupVolts Per HertzSynchrocheckPhase UndervoltageThird Harmonic Neutral UndervoltageAuxiliary UndervoltageSensitive Directional PowerLoss of ExcitationGenerator UnbalanceGround Instantaneous OvercurrentNeutral Instantaneous OvercurrentNeutral Instantaneous OvercurrentSplit Phase Protection Accidental EnergizationGround Time Overcurrent
Phase Time OvercurrentNeutral OvervoltagePhase OvervoltageAuxiliary OvervoltageNegative Sequence Overvoltage100% Stator GroundNegative Sequence Directional OvercurrentNeutral Directional OvercurrentPhase Directional OvercurrentPower Swing DetectionOverfrequencyRate of Change of FrequencyUnderfrequencyRestricted Ground FaultStator Differential
DEVICENUMBER FUNCTION
Functional Block Diagram
insensitive to the absolute value of thethird harmonic and is easily setwithoutthe need for on-linemeasurements. Forgenerator with delta connected PTs, athird harmonic undervoltage element isalso offered for detecting a loss of thethirdharmonic voltageat thegeneratorneutral.
loss of Excitation
Generator loss of excitation protectionis provided via twonegative offsetmhocharacteristics as per IEEE C37.102.
Thepowerswingblockingelementprovidesblockingofthebackupdistanceelementandotherprotectionsunderpowerswingconditions. Additionally, the out-of-steptrippingelementcanbeusedfortrippingthe generator when an unstable powerswingisdetected.
The G60 is the single point for protection, control, metering, and monitoring in one integrated device that can easily be connected directly into DCS or SCADA monitoring and control systems like Viewpoint Monitoring as shown.
G60 - Protection, Metering, Monitoring and Control
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G60Generator Protection system
protection for both the generator andtheunittransformer.User-programmableFlexCurvescaneasecoordinationissues.
split Phase Protection
Split phase protection is provided forsensitivedetectionforinter-turnfaultsandcanberuninconjunctionwiththeprimarystatordifferentialprotection.Independentsettingsareprovidedonaper-phasebasisand a single-slope bias characteristic isusedtoallowoperationonmachineswithasectionofwindingbypassed.
Pumped storage Generator
The G60 can be used for protectinggenerators thatarealso runaspumpedstorage motors without the need forswitchingtheCTsecondarycircuitry.TheG60isabletoautomaticallycompensatefor thephase reversal that occurswhenthegeneratorisbeingrunasamotor.
synchronism Check
The G60 provides elements to monitor
Backup Phase Distance
Threeseparatephasedistanceelementsprovide time-delayed backup protectionfor generator faults that have nototherwise been cleared by the primarysystem and generator protections. Eachzone can independently compensate forpowertransformers,socompensationcanbeappliedforzonesreachingoutintothesystemthroughtheunittransformer,whilezones looking into thestatorcanremainuncompensated.
sensitive Directional Power
Twoseparatedirectionalpowerelementsareprovidedtodetectgeneratormotoringtoprotecttheprimemoverfromdamage.Eachelementrespondstoeitherreverseorlowforwardpowerflowandcanbeusedto provide independent alarm and tripsettings.
restricted Ground Fault (rGF)
Restricted Ground Fault protection (alsoknown as zero sequence differential)extendsprotectioncoveragetotheneutralpoint of the stator winding, where faultcurrentsmaybebelowthepickupof themainstatordifferentialelement.Thelow-impedance RGF protection provided theG60usesanoptimizedadaptiverestraintsignal thatprovidessecurity forexternalfault conditions that may cause CTsaturationwhilestillmaintainingsensitivityforinternalfaults.
overexcitation Protection
Two separate Voltz-per-Hertz elementscan be used to provide overexcitation
The G60 Percent Differential Element has enhanced saturation detection algorithms to provide additional security against AC and DC saturation that can occur during faults near the generator.
differences in voltage magnitudes,phase angles, and frequencies toperform synchronism check across uptotwobreakers.TheG60canbeused inconjunctionwithanexternalsynchronizeras an independent check of thesynchronizerpriortoclosingthegeneratorbreaker.
IEC 61850 Process BusThe IEC 61850 Process Bus module isdesignedtointerfacewiththeGEMultilinHardFiberSystem,allowingbi-directionalIEC 61850 fiber optic communications.The HardFiber System is designed tointegrate seamlessly with the existingUniversal Relay applications, includingprotection functions,FlexLogic,meteringandcommunications.
The GEMultilin HardFiber System offersthefollowingbenefits:
advanced automationTheG60incorporatesadvancedautomationfeatures including powerful FlexLogic™
Use the G60 to protect Pumped Storage Generators when motoring without having to switch CT secondary wiring.
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programmablelogic,communication,andSCADAcapabilitiesthatfarsurpasswhatis found in the averagegenerator relay.TheG60integratesseamlesslywithotherURrelaysforcompletesystemprotection,includingtheunitandauxiliarytransformers,andBalanceofPlantprotection.
Flexlogic™
FlexLogic™ is the powerful UR-platformprogramming logic engine thatprovidesthe ability of creating customizedprotection and control schemes therebyminimizingtheneed,andtheassociatedcosts,ofauxiliarycomponentsandwiring.Using FlexLogic™, the G60 can beprogrammedtoproviderequiredtrippinglogic along with custom scheme logicfor generator breaker control (includinginterlockingwithexternalsynchronizers),transfer tripping schemes for remotebreakers and dynamic setting groupchanges.
Monitoring and MeteringTheG60includeshighaccuracymeteringandrecordingforallACsignals.Voltage,current,andpowermeteringarebuiltintothe relay as a standard feature. Currentandvoltageparameters are availableas total RMS magnitude, and asfundamental frequency magnitude andangle.
Fault and Disturbance recording
The advanced disturbance and eventrecording features within the G60 cansignificantly reduce the timeneeded forpostmortem analysis of power systemeventsandcreationofregulatoryreports.Recordingfunctionsinclude:
The very high sampling rate and largeamount of storage space available fordata recording in theG60caneliminatetheneed for installingcostly standalonerecordingequipment.
advanced Device Health Diagnostics
The G60 performs comprehensivedevice health diagnostic tests duringstartup and continuously at runtime totest its ownmajor functions and criticalhardware.Thesediagnostictestsmonitorforconditionsthatcould impactsecurityandavailabilityofprotection,andpresentdevicestatusviaSCADAcommunicationsand front panel display. Providingcontinuousmonitoringandearlydetectionof possible issues helps improve systemuptime.
FlexLogicTM allows for customizing the G60 outputs for most generator protection schemes and applications.
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transfersof relay faultandevent recordinformation. The available redundantEthernet option and the embeddedmanaged Ethernet switch providethe means of creating fault tolerantcommunicationarchitectures inaneasy,cost-effectivemannerwithouttheneedforintermediarycommunicationhardware.
The G60 supports the most popularindustrystandardprotocolsenablingeasy,direct integration into DCS and SCADAsystems.
• IEC61850
• DNP3.0
• EthernetGlobalData(EGD)
• IEC60870-5-104
• ModbusRTU,ModbusTCP/IP
Interoperability with Embedded IEC61850
UsetheG60withintegratedIEC61850tolower costs associated with generatorprotection, control and automation. GE
Multilin’s leadership in IEC61850 comesfrom thousandsof installeddevicesandfollows on seven years of developmentexperiencewithUCA2.0.
DirectI/Oallowsforsharingofhigh-speeddigital information betweenmultiple URrelaysviadirectback-to-backconnectionsor multiplexed through a standard DS0multiplexerchannelbank. Regardlessoftheconnectionmethod,DirectI/Oprovidescontinuousreal-timechannelmonitoringthat suppliesdiagnostics informationonchannelhealth.
DirectI/Oprovidessuperiorrelay-to-relaycommunications that can be used inadvancedinterlocking,generationrejectionandotherspecialprotectionschemes.
TheG60supportsEnglish,French,Russian,andChineselanguagesonthefrontpanel,EnerVista™ setup software, andproductmanual. Easily switch between Englishandanadditional languageon the localdisplayswithoutuploadingnewfirmware.
Analyze generator faults using both analog and digital power system quantities that are measured and recorded up to a rate of 64 samples per cycle.
Log generator operating parameters to allow for analyzing generator loading and performance over weeks and months.
Record the operation of the internal G60 elements and external connected devices with 1ms time-stamped accuracy to identify the Sequence of Operation of station devices during generator faults and disturbances.
Power system troubleshootingTheG60containsmanytoolsandreportsthatsimplifyandreducetheamountoftimerequiredfortroubleshootingpowersystemevents.
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EnerVistatM softwareTheEnerVista™Suiteisanindustry-leadingset of software programs that simplifieseveryaspectofusing theG60relay.TheEnerVista™ suite provides all the toolsto monitor the status of the protectedasset ,maintain the relay, and integrateinformation measured by the G60 intoDCS or SCADA monitoring systems.Convenient COMTRADE and Sequenceof Events viewers are an integral partof the UR Setup software included witheveryUR relay, tocarryoutpostmortemeventanalysistoensureproperprotectionsystemoperation.
EnerVista™ launchpad
EnerVista™ Launchpad is a powerfulsoftwarepackagethatprovidesuserswithallofthesetupandsupporttoolsneededforconfiguringandmaintainingGEMultilinproducts. The setup software withinLaunchpad allows configuring devicesin real-time by communicating usingserial,Ethernet,ormodemconnections,orofflinebycreatingsettingfilestobesenttodevicesatalatertime.
Included in Launchpad is a documentarchiving and management systemthat ensures critical documentation isup-to-date and available when needed.Documentsmadeavailableinclude:
• Manuals
• ApplicationNotes
• GuideformSpecifications
• Brochures
• WiringDiagrams
• FAQs
• ServiceBulletins
Viewpoint Monitoring
Viewpoint Monitoring is a simple-to-useand full-featured monitoring and datarecording software package for smallsystems.ViewpointMonitoringprovidesacompleteHMIpackagewiththefollowingfunctionality:
• Plug&PlayDeviceMonitoring
• SystemSingle-LineMonitoring&Control
• AnnunciatorAlarmScreens
• TrendingReports
• AutomaticEventRetrieval
• AutomaticWaveformRetrieval
Viewpoint Engineer
Viewpoint Engineer is a set of powerfultools that will allow the configurationandtestingofURrelaysatasystemlevelin an easy-to-use graphical drag-and-drop environment . Viewpoint Engineerprovides the followingconfigurationand
commissioningutilities:
• GraphicalLogicDesigner
• GraphicalSystemDesigner
• GraphicalLogicMonitor
• GraphicalSystemMonitor
Viewpoint Maintenance
ViewpointMaintenanceprovidestoolsthatwillcreatereportsontheoperatingstatusoftherelay,simplifythestepstodownloadfaultandeventdata,andreducetheworkrequired for cyber-security complianceaudits. Tools available in ViewpointMaintenanceinclude:
The internal operation of the G60 elements, logic, and outputs can be monitored in real time to simplify commissioning and troubleshooting procedures
Create G60 Setting File Templates to ensure critical settings are not altered
simplifying Commissioning and testing simplifying G60 Configuration
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user InterfaceThe G60 front panel provides extensivelocalHMI capabilities. The local displayisusedformonitoring,statusmessaging,faultdiagnosis,anddeviceconfiguration.Userconfigurablemessagesthatcombinetextwithlivedata,canbedisplayedwhenuser-definedconditionsaremet.
LEDindicators
Multi-LanguageDisplay• English• Russian• French• Chinese
UserProgrammablePushbuttons
typical Wiring
G60-H00-HCH-F8F-H6G-M8H-PXX-uXX-WXX
1
PowerSupply
9
CPU
JU MX LW KV BHT DN G FPS Rminimum GROUNDBUS
G60 GENERATOR MANAGEMENT RELAY
RS-232
DB-9
(front)
UR
CO
MPU
TER
1
TXD
RXD
RXD
TXD
SGN
DSG
ND
18 3 2 20 7 6 4 5 22
CO
NN
ECTO
RC
ON
NEC
TOR
22
33
44
55
66
77
88
99
6
Inputs/outputs
8
VT/CT
8
CT
TC
TC
2
1
SURGE
H6a
H8a
H5b
H7b
H8b
H5a
H7a
H6c
H8c
H5c
H7c
H1a
H2b
H1cH1b
H2c
H2a
H4a
H4c
H3bH3a
H4b
H3c
H1
H2
H3
H4
6G I
V
I
V
I
V
I
V
CRITICALFAILURE
OUTPUT
CONTROLPOWER
HILO
1
FILTERSURGE
B3a
B1b
B8a
B6b
B8b
B6a
B3b
B1aB2b
B5b
DC
F1c
F4a
F8c
F8a
F3c
F5a
F5c
F7c
F6a
F7a
F6c
F2c
VX
VA VB
VC
F4c
F1a
F4b
F1b
F2a
F3a
F2b
F3b
VX
VA VB
VC IA IB IC IGIA5
IA1
IB5
IC5
IG5
IB1
IC1
IG1
M3c
M4c
M4b
M4a
M1c
M1a
M1b
M3b
M2a
M3a
M2b
M2c
IA IB IC IGIA5
IA1
IB5
IC5
IG5
IB1
IC1
IG1
ABC
R
PROVIDED
F FFFFF
5a 5c 7c6a 7a6c
VA VB
VCVA VB
VC
Multilin
com
10BaseFL
10BaseFL
10BaseT
D1aD2a
D4bD3a
D4a IRIG-BInput
IRIG-BOutput
COM1
RS485
ALTERNATE
NORMAL
Tx2Rx2
Tx1Rx1
BNC
BNC
FibreOptic
*
RemoteDevice
Shielded
Co-axial
Co-axial
com
10BaseFL
10BaseFL
10BaseT
D1aD2a
D4bD3a
D4a IRIG-BInput
IRIG-BOutput
COM1
RS485
ALTERNATE
NORMAL
Tx2Rx2
Tx1Rx1
BNC
BNC
FibreOptic
*
RemoteDevice
Shielded
Co-axial
Co-axial
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G60 - * 00 - H * * - F ** - H ** - M ** - P ** - u ** - W/X ** For full sizeBaseUnit G60 BaseUnitCPU E RS485+RS485(IEC61850optionnotavailable) G RS485+multi-modeST10BaseF H RS485+multi-modeSTRedundant10BaseF J RS485+multi-modeST100BaseFX K RS485+multi-modeSTRedundant100BaseFX N RS485+10/100BaseT S RS485+6port,100Mbps,ManagedEthernetSwitchSoftwareOptions 00 NoSoftwareOptions 01 EthernetGlobalData(EGD) 03 IEC61850 04 EthernetGlobalData(EGD)+IEC61850 05 PhasorMeasurementUnit(PMU) 06 IEC61850+PhasorMeasurementUnit(PMU)Mount/Coating H Horizontal(19”rack)-Standard A Horizontal(19”rack)-HarshEnvironmentCoating V Vertical(3/4size)-Standard B Vertical(3/4size)-HarshEnvironmentCoatingUserInterface K EnhancedEnglishFrontPanel L EnhancedEnglishFrontPanelwithUser-ProgrammablePushbuttons M EnhancedFrenchFrontPanel N EnhancedFrenchFrontPanelwithUser-ProgrammablePushbuttons Q EnhancedRussianFrontPanel T EnhancedRussianFrontPanelwithUser-ProgrammablePushbuttons U EnhancedChineseFrontPanel V EnhancedChineseFrontPanelwithUser-ProgrammablePushbuttons F VerticalFrontPanelwithEnglishdisplayPowerSupply H 125/250VAC/DC H RH 125/250VAC/DCwithredundant125/250VAC/DC L 24-48V(DConly)CT/VTDSP 8L 8L Standard4CT/4VTw/enhanceddiagnostics 8M 8M SensitiveGround4CT/4VTw/enhanceddiagnostics 8N 8N Standard8CTw/enhanceddiagnostics 8R 8R SensitiveGround8CTw/enhanceddiagnosticsIEC61850ProcessBus 81 8PortIEC61850ProcessBusModuleDigitalI/O XX XX XX XX XX Nomodule 4A 4A 4A 4A 4A 4SolidState(NoMonitoring)MOSFETOutputs 4C 4C 4C 4C 4C 4SolidState(Currentw/optVoltage)MOSFETOutputs 4D 4D 4D 4D 4D 16DigitalInputswithAuto-Burnish 4L 4L 4L 4L 4L 14Form-A(NoMonitoring)LatchableOutputs 67 67 67 67 67 8Form-A(NoMonitoring)Outputs 6C 6C 6C 6C 6C 8Form-COutputs 6D 6D 6D 6D 6D 16DigitalInputs 6E 6E 6E 6E 6E 4Form-COutputs,8DigitalInputs 6F 6F 6F 6F 6F 8FastForm-COutputs 6K 6K 6K 6K 6K 4Form-C&4FastForm-COutputs 6L 6L 6L 6L 6L 2Form-A(Currentw/optVoltage)&2Form-COutputs,8DigitalInputs 6M 6M 6M 6M 6M 2Form-A(Currentw/optVoltage)&4Form-COutputs,4DigitalInputs 6N 6N 6N 6N 6N 4Form-A(Currentw/optVoltage)Outputs,8DigitalInputs 6P 6P 6P 6P 6P 6Form-A(Currentw/optVoltage)Outputs,4DigitalInputs 6R 6R 6R 6R 6R 2Form-A(NoMonitoring)&2Form-COutputs,8DigitalInputs 6S 6S 6S 6S 6S 2Form-A(NoMonitoring)&4Form-COutputs,4DigitalInputs 6T 6T 6T 6T 6T 4Form-A(NoMonitoring)Outputs,8DigitalInputs 6U 6U 6U 6U 6U 6Form-A(NoMonitoring)Outputs,4DigitalInputs 6V 6V 6V 6V 6V 2Form-A(Curw/optVolt)1Form-COutput,2LatchingOutputs,8DigitalInputsTransducerI/O 5A 5A 5A 5A 5A 4dcmAInputs,4dcmAOutputs 5C 5C 5C 5C 5C 8RTDInputs 5D 5D 5D 5D 5D 4RTDInputs,4dcmAOutputs 5E 5E 5E 5E 5E 4dcmAInputs,4RTDInputs 5F 5F 5F 5F 5F 8dcmAInputsInter-RelayCommunications 7A 820nm,multi-mode,LED,1Channel 7B 1300nm,multi-mode,LED,1Channel 7C 1300nm,single-mode,ELED,1Channel 7H 820nm,multi-mode,LED,2Channels 7I 1300nm,multi-mode,LED,2Channels 7J 1300nm,single-mode,ELED,2Channels 7S G.703,2Channels 7W RS422,2Channels 76 IEEEC37.94,820nm,multi-mode,LED,1Channel 77 IEEEC37.94,820nm,multi-mode,LED,2Channel 2S 6port,100Mbps,ManagedEthernetSwitch,HI(125/250VAC/DC) 2T 6port,100Mbps,ManagedEthernetSwitch,LO(24-48Vdc)
