Sepam - HV/MV Protection and control units (ENG) - Trinet

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IntroductionThis chapter describes the procedures used to testthe protection functions that are available in theSepam 2000 range.The tests call for:c knowledge of how to use Sepam 2000c a set of testing equipmentc a TSM 2001 pocket terminal or a PC microcomputerwhich includes the SFT 2801 PC software packagec documentationThe tests that are described relate to the methodreferred to as the "current and voltage sensorsecondary injection" method.In the rest of the document, "pocket terminal" refers to:c the TSM 2001 pocket terminal,c a computer which includes the SFT 2801 PC softwarepackage.1/2 Sepam 2000 - Testing
Measurement and testing methodGeneral informationEach protection function may be activated individuallyby disabling the set points of the other functions.Activating and de-activating functions does not disturbfunction operation in any way.Most of the tests may be performed using aSingle-Phase injection unit, with the exception ofphase rotation checking.Three-phase injection is recommended for checkingcertain functions, in particular:c earth fault current measured by the sum of the3 CTs,c neutral voltage displacement measured by the sumof the 3 VTs,c positive sequence undervoltage and phase rotation,c directional overcurrent.Terminal boxes (type "Entrelec", "Secura", etc…) aregenerally used for testing in LV cubicles, which meansthat it is not necessary to disconnect any existingwiring connections.Checksc prior to energizingCheck:v auxiliary voltages of Sepam and ESB, ESTOR modules,v coherency between the cartridge and Sepam labels (model, type),v module insertion and presence of DPC straps,v setting of microswitches on the ECM, 3U/Vo and ECA modules,v connection of the core balance CT (P1-P2 and S1-S2 directions),v wiring of currents and voltages (rotation and matching),v wiring and polarization of the required inputs and ouputs.c after energizingv set the parameters under the status heading,v set (1) the time delays required by the automation systems (T1, T2 etc…),the parameters values (KPxx),v in the case of customized program logic: check that the protection contacts(FXXX/X) to be tested, as well as the output relays associated with the protections,are being used.c prior to injectionv set the values of the protections to be tested,v disable the set points of other protections that are liable to interfere with testing.Please note:Remember to re-activate the protections at the end of testing (protections aregenerally disabled by setting to 999, kA, kV, etc …).c tolerance ranges and injection limitsv current:- minimum 1.5% of CT In (150 mA or 750 mA) (2) ,- maximum 3 times steady state In (3 A or 15 A) (2) , 24 times In for 3 s(24 A or 120 A) (2) ,- 50 Hz (±10%);v voltage:- minimum 1.5% of Un (0.86% of Vn) i.e. 1.5 V for 100 V (3) ,- maximum 150% of Un,- 50 Hz (±10%).Remarks:In order to simplify the presentation of examples, injection current values are givenin primary amperes (like Sepam 2000 measurements).When the current injection unit is equipped with electronic ON/OFF controls,check that current is zero in the automatic OFF position (since the static contactormay allow more than 5% of the current to flow through, depending on the positionof the cursor). When the starts per hour protection is being tested, in particular,the current broken should be less than 5% of Ib.(1)in the case of standard logic, refer to the control andmonitoring function manuals(2)to the position corresponding to 1 or 5 A according to themicroswitch setting(3)according to SM2001 pocket terminal setting of the value(Uns) of the VT secondary circuitUn : phase-to-phase voltageVn : phase voltageIn : rated current on CT primaryIb : exact load current (manufacturer data)Sepam 2000 - Testing1/3
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Protectionand controlSepam rangeSep
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ContentsMetering functionschapter /
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Maximum demand phase currentsOperat
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Residual currentOperationThis opera
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FrequencyOperationThis function giv
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%32.521.510.5%0.10.050.0100 0.1000.
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Accumulated real/reactive energyOpe
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Residual voltageOperationThis funct
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Cumulative breaking current and num
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Differential current and through cu
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ContentsProtection functionschapter
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Commissioning, settingCheck:c the c
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Measurement of phase shift with res
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Example of useWhen the current sens
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Commissioning, settingEarth fault c
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Directional earth faultANSI code 67
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Protection detection directionThe n
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Commissioning, settingEarth fault c
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Resistive earth faultANSI codefunct
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Thermal overloadANSI code 49functio
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Cold curvesI/Ib 1.00 1.05 1.10 1.15
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Cold curvesI/Ib 4.80 5.00 5.50 6.00
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Hot curvesI/Ib 1.00 1.05 1.10 1.15
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Commissioning, settingsCheck:c the
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CharacteristicscurvesettingIs set p
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Commissioning, settingsCheck:c the
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Block diagramk1>NstartF421/3I1I2I3I
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Phase undercurrentANSI code 37Block
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0,05IbIsF441/1F441/2F441/3F441/4F44
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CharacteristicsUs set pointsettinga
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Positive sequence undervoltageand p
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Neutral voltage displacementANSI co
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Rate of change of frequency protect
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c Low set point time delayFor good
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OverfrequencyANSI code 81function n
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CharacteristicsdUs set pointrangere
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Percentage-based single-phase overc
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PerformanceThe performance of this
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Block diagramF621/1> 5,5 In&I1I1’
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Commissioning, settingNeutral curre
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AppendixContentschapter / pageappen
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Another practical method: the chart
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Very inverse time curve VIT or LTIt
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Ultra inverse time curve UITt (s)1
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General parameter settingsThe gener
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Protectionand controlSepam rangePro
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Control and monitoring functionsCon
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Open / close controlUseThis functio
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Special featuresc Input I15 (extern
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Open / close matching supervisionAp
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Block diagram: substation - busbar
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Operation counterphase fault trip c
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Load sheddingBlock diagramlogic inp
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IntertrippingBlock diagramprotectio
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ApplicationThis function provides r
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RecloserApplicationDesigned essenti
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IndicationsDisplay messagesList of
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De-excitationBlock diagramde-excita
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OperationA closing request made loc
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Disturbance recording triggeringBlo
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Open / close controlcapacitor bank
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Capacitor controlBlock diagraminten
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ApplicationThis function may be use
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Capacitor unbalanceBlock diagram"RE
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VT supervisionApplicationThis funct
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Remote control and remote annunciat
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Function set-up summary chart (cont
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InstallationContentschapter / pagei
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InstallationEquipment identificatio
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Optional accessoriesTSM 2001 pocket
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Sepam 2000 componentsslot 6 5 4 3 2
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CCA 660 or CCA 650connectorc Open t
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Accessories for CSPcurrent sensorsA
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Use of ACE 907 and AC 908c Connect
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InstallationUse and connection of s
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Connection of CSH 120 andCSH 200 co
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Connectionto CT with 1 A secondaryc
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Characteristicsc Accuracy:v amplitu
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Connection of 2 VTsThis arrangement
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InstallationConnection of Pt100 ter
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InstallationConnection of the Jbus/
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Use - commissioningDescription/useY
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Use - commissioningDescription/use
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Use - commissioningUse (current ope
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Use - commissioningCommissioningChe
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Use - commissioningCommissioning (c
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Use - commissioningMaintenance (con
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Use - commissioningSepam 2000 ident
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Use - commissioningPasswordUse of t
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General characteristicsCharacterist
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General characteristicsCharacterist
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General characteristicsQualificatio
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General characteristicsPerformance
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General characteristicsEffects of t
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General characteristicsEffects of t
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General characteristicsDependabilit
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Appendix 1: reference documentsStan
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Testing - setting record sheetsComm
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Program logic parameters (customize
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SETTING RECORD SHEETProject: ......
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Sepam 2000 Substationfunction ident
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Status menu parameters (cont’d)me
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Sepam 2000 Transformerfunction iden
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Status menu parameters (cont’d)Se
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Sepam 2000 Generatorfunction identi
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InstallationAssembly and wiring (co
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InstallationConnection of current i
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InstallationConnection of analog in
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InstallationConnection of power sup
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Notes1/16 Installation - Use - Shee
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Use - commissioningDescription / us
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2/14 Installation - Use - Sheets
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Notes2/16 Installation - Use - Shee
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InstallationAssembly and wiring (co
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InstallationConnection of current i
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InstallationUse of the CSH 30 core
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InstallationConnection of the Jbus
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InstallationChecking prior to commi
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2/18 Use - commissioning
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TestingGeneral informationProcedure
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TestingGeneral information (cont'd)
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TestingCabling testing by current i
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ITestingCabling testing by current
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ITestingCabling testing by current
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SETTING RECORD SHEETSite : ........
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TEST SHEET Sepam 2000Site : .......
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InstallationUse conditionsInstallat
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InstallationAssembly and wiringDime
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InstallationUse and connection of c
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InstallationUse and connection of C
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InstallationConnection of power sup
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InstallationReplacement of Sepam 20
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Use - commissioningPasswordThe user
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General characteristicsSepam 2000 l
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General characteristicsDependabilit
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Testingchapitre / pagetestinggenera
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Inhibition of outputsand test param
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Other diagram:This diagram may be u
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TestingCabling testing by current i
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TestingRestricted earth fault prote
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TEST SHEET Sepam 2000Project: .....
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Electrical testsAimThe aim of these
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Testing of output effects in rated
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Effects of the environment on the e
Page 417 and 418: Appendix 1: reference documentsStan
Page 419 and 420: Contentspagepresentation 2connectio
Page 421 and 422: ImplementationSetting the communica
Page 423 and 424: Use of remote control bitsThe remot
Page 425 and 426: Events zoneThe events zone is a tab
Page 427 and 428: Test zoneThe test zone is a 16-word
Page 429 and 430: Measurements x 1 zoneThe measuremen
Page 431 and 432: Compact zoneThe compact zone contai
Page 433 and 434: Configuration zoneThe configuration
Page 435 and 436: Jbus data encoding (logical)Format
Page 437 and 438: I onA V/Hz W/ϕ Wh clear alarm rese
Page 439 and 440: Description of event codingAn event
Page 441 and 442: I onO offA V/Hz W/ϕ Wh clear alarm
Page 443 and 444: Sepam 2000 internal eventsThe inter
Page 445 and 446: switching of the setting terminal t
Page 447 and 448: Access to remote settings (cont’d
Page 449 and 450: Description of settingsData typeThe
Page 451 and 452: Reading of phase overcurrent protec
Page 453 and 454: If the master requests more exchang
Page 455 and 456: eading of block n° 79h of the reco
Page 457 and 458: Request framethis codeis used to se
Page 459 and 460: Reading of N words:function 3 or 4T
Page 461 and 462: Reading of diagnosiscounters: funct
Page 463 and 464: ExampleForcing of words 0800h to 08
Page 465 and 466: Protectionand controlSepam rangeSep
Page 467: Protection function testsContentANS
Page 471 and 472: Checking of IDMT set point and time
Page 473 and 474: Voltage restrained overcurrent prot
Page 475 and 476: Earth fault protectionANSI code 50N
Page 477 and 478: Percentage-based single-phase overc
Page 479 and 480: c testing of TOnce the protection a
Page 481 and 482: examplec angle θo = 0° (see figur
Page 483 and 484: Checking of protection disengaging
Page 485 and 486: Setting Adjust = None does not take
Page 487 and 488: Cold curvesI/Ib 1.85 1.90 1.95 2.00
Page 489 and 490: Hot curves:t/T1 = f(OL, I/Ib)The fo
Page 491 and 492: Sensitive earth fault protectionANS
Page 493 and 494: Ii (% Ib) K10 99.9515 54.5020 35.44
Page 495 and 496: Testing of number of consecutive co
Page 497 and 498: Phase undercurrent protectionANSI c
Page 499 and 500: Remanent undervoltage protectionANS
Page 501 and 502: Phase-to-phase overvoltage protecti
Page 503 and 504: Testing by injection into input A1-
Page 505 and 506: Underfrequency protectionANSI code8
Page 507 and 508: Rate of change of frequency protect
Page 509 and 510: Testing Ps set pointv using single-
Page 511 and 512: Testing Ps set pointv using single-
Page 513 and 514: Testing of Qs set pointv using sing
Page 515 and 516: Resistance values as afunction of t
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Checking of the slopeThe slope can
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Protection against circuit breaker
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Testing equipmentMeasurement and te
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Test wiring diagram (cont'd)B2: thr
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Test wiring diagram (cont'd)B8: cur
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Test wiring diagram (cont'd)B10: si
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Test wiring diagram (cont'd)B12: un
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Test wiring diagram (cont'd)B14: re
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Test wiring diagram (cont'd)B16 : s
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TEST SHEET Sepam 2000Project : ....
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Program logic parameters (customize
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Sepam 2000 Busbarsfunction identifi
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Sepam 2000 Moteurfunction identific
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Sepam 2000 Capacitorfunction identi
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Sepam 2000 Generator (cont’d)func
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IDMT protection curvesStandard inve
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IDMT protection curves (cont'd)Extr
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Negative sequence/unbalance protect
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Schneider Electric3140746A-EART.757
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Sepam - HV/MV Protection and control units (ENG) - Trinet

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