Our energy at your service GENERATION & NETWORK Feeder Protection IED NPF915 • Double busbar control • Directional and voltage protection • Cable end differential protection • Low-impedance REF protection • Harmonics protection and control • 5-shot scheme controlled autorecloser • Energy and Power measurement accuracy better than Class 1 S The optimal management of electrical power systems is based in particular on the reliability, availability and communication skills of protection, measurement and automation devices. The NPF915 offers a modular feeder protection and control solution for applications requiring both current and voltage based protections along with complete measurements. Optional cards (I/O, communication...) are available for more comprehensive monitoring and control applications. The NPF915 communicates using various protocols including IEC 61850 substation communication standard. ANSI CODES

NPF915 - CEE Relays•Over/Under/Reverse power [32/37/32R] •Breaker failure protection [50BF/52BF] •Arc protection (option) [50ARC] Measuring and monitoring •Phase and residual

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Page 1: NPF915 - CEE Relays•Over/Under/Reverse power [32/37/32R] •Breaker failure protection [50BF/52BF] •Arc protection (option) [50ARC] Measuring and monitoring •Phase and residual

Our energy at your service

GENERATION & NETWORKFeeder Protection IED

NPF915

• Doublebusbarcontrol

• Directionalandvoltageprotection

• Cableenddifferentialprotection

• Low-impedanceREFprotection

• Harmonicsprotectionandcontrol

• 5-shotschemecontrolledautorecloser

• EnergyandPowermeasurementaccuracybetterthanClass1S

The optimal management of electrical power systems is based inparticular on the reliability, availability and communication skills ofprotection,measurementandautomationdevices.

TheNPF915offersamodularfeederprotectionandcontrolsolutionforapplicationsrequiringbothcurrentandvoltagebasedprotectionsalongwithcompletemeasurements.Optionalcards(I/O,communication...)are available for more comprehensive monitoring and controlapplications.

TheNPF915communicatesusingvariousprotocolsincludingIEC61850substationcommunicationstandard.

ANSI CODES

Page 2: NPF915 - CEE Relays•Over/Under/Reverse power [32/37/32R] •Breaker failure protection [50BF/52BF] •Arc protection (option) [50ARC] Measuring and monitoring •Phase and residual

A924B

CHARACTERISTICSProtection functions

• Three-phaseovercurrent,4stagesINST,DTorIDMT[50/51]

• Earth-fault(sensitive),4stagesINST,DTorIDMT[50N/51N(S)]

• Directionalovercurrent,4stagesINST,DTorIDMT[67]• Directionalearth-fault,4stagesINST,DTorIDMT[67N]• Harmonicovercurrent,4stagesINST,DTorIDMT[50H/51H/68H]

• Currentunbalance,4stagesINST,DTorIDMT[46/46R/46L]

• Lowimpedancerestrictedearthfault/cableenddifferential[87N]

• Cablethermalprotection[49L]• Overvoltage,4stagesINST,DTorIDMT[59]• Undervoltage,4stagesINST,DTorIDMT[27]• Zerosequenceovervoltage,4stagesINST,DTorIDMT[59N]

• Positivesequenceunder/overvoltage,negativesequenceovervoltage,4stagesINST,DTorIDMT[59P/27P/47]

• Over/underfrequency,8stagesINSTorDT[81O/81U]• Rateofchangeoffrequency,8stagesINSTorDTorIDMT[81R]

• Vectorjump[78]• Over/Under/Reversepower[32/37/32R]• Breakerfailureprotection[50BF/52BF]• Arcprotection(option)[50ARC]

Measuring and monitoring• Phaseandresidualcurrents(IL1,IL2,IL3,I01,I02)• Voltagemeasurements(UL1-UL3,U12-U31,U0,SS)• Faultlocator[21FL]• Currentandvoltageharmonics(upto31st)• CurrentTHD• Frequency(f)• Power(P,Q,S,pf)• Energy(E+,E-,Eq+,Eq-)• Circuitbreakerwear(CBW)• Disturbancerecorder(3.2kHz)• Currenttransformersupervision(CTS)• Fusefailure(VTS)• Tripcircuitsupervision[74TC]

Control• Controllableobjects:5• Synchrocheck[25]• Autorecloser[79]• Cold-loadpick-upblock[68]• Switchontofaultlogic• 8settinggroups

Hardware• Currentinputs:5• Voltageinputs:4• Digitalinputs:3(standard)• Outputrelays:5+1(standard)

Options (3 slots)• Digitalinputsoptional:+8percard• Digitaloutputsoptional:+5percard(2cardsmax.)• Arcprotection(12sensors+2xHSO+BI)• 2xmAinput+6-8xRTDinput(2cardsmax.)• Communicationmedia(specifiedbelow)

Event recording• Non-volatiledisturbancerecords:100• Non-volatileeventrecords:10000

Communication media• RJ45Ethernet100Mb(frontstandard)• DoubleLCEthernet100Mb(option)• RS232+serialfibrePP/PG/GP/GG(option)

Communication protocols standard• IEC61850• IEC60870-5-103/101/104• ModbusRTU,ModbusTCP/IP• DNP3.0,DNP3.0overTCP/IP• SPA

Case• H,W,Dwithoutterminal177x127x174mm• H,W,Dwithterminal177x127x189mm(casingheight4U,width¼rack,depth210mm)

• H,Woffrontplate177x127mm• H,Wofcutout160x106mm

SMART9 - integrated softwareOur user friendly SMART9 (Setting, Measurement,Analysis,Recording,Time-saving)configurationsoftwarehelpstheusergetthebestfromNP900seriesrelays.