Type TEC, Transformer Electronic Control System · 2018. 5. 10. · By default, the TEC system IP...

1ZSC000857-AAN en, Rev. 1

Type TEC, Transformer Electronic Control SystemAdvanced PC – User’s manual

Declaration of conformity

The manufacturer ABB AB Components SE-771 80 LUDVIKA Sweden

Hereby declares that

The product Transformer Electronic Control

by design comply with the following requirements:

• EMC Directive 89/336/EEC (amended by Directive 91/263/EEC, Directive 92/31/EEC and Directive 93/68/EEC) regarding the intrinsic characteristics to emission and immunity levels and

• LowVoltageDirective73/23/EEC(modifiedbyDirective93/68/EEC).

Date 2008-01-30

Signedby ......................................................................... Carl-Henrik Wigert

Title General Manager TEC

This User’s Manual has been produced to provide transformer manufacturers, and their de-signers and engineers, access to all the technical information required to assist them in their selection of a monitoring system. It is also intended as a TEC system information source for end-users.

The information provided in this document is intended to be general and does not cover all possible applications. Any specific application not covered should be referred directly to ABB.

ABB makes no warranty or representation and assumes no liability for the accuracy of the information in this document or for the use of such information. All information in this docu-ment is subject to change without notice.

We reserve all rights to this document and the information contained herein. Reproduction, use or disclosure to third parties without express permission is strictly forbidden.

© Copyright 2008 ABB

Recommended PracticesABB recommends careful consideration of the following factors when maintaining the Transformer Electronic Control:

Before you begin maintenance work on a unit, make sure that the personnel conducting the work have read and fully understood the Installation and Commissioning Guide and the Technical Guideprovidedwiththeunit.

To avoid damaging the unit, never exceed the operating limits stated in delivery documentsandonratingplates.

DonotalterormodifyaunitwithoutfirstconsultingABB.

Followlocalandinternationalwiringregulationsatalltimes.

Useonlyfactory-authorizedreplacementpartsandprocedures.

WARNING, CAUTION, and NOTE

WARNINGA WARNING provides information which, if disregarded, could result in injury or death.

CAUTIONA CAUTION provides information which, if disregarded, could result in damage to the equipment.

NOTE: A NOTE provides additional information to assist in carrying out the work described.

TrademarksInternet Explorer® and Windows Server® are registered trademarks of Microsoft CorporationintheUnitedStatesandothercountries.

•

•

•

•

•

Type TEC, Transformer Electronic Control System – Advanced PCUser’s Manual

Table of contents1 About this manual ________________________________________________ 7

1.1 General ____________________________________________________ 71.2 Terminology ________________________________________________ 71.3 Relateddocumentation________________________________________ 7

2 System overview _________________________________________________ 82.1 AdvancedPC _______________________________________________ 82.2 Userinterface _______________________________________________ 82.3 Userroles __________________________________________________ 92.4 Usermanagement____________________________________________ 9

3 Firsttimeconfiguration ___________________________________________ 113.1 Installation ________________________________________________ 113.1.1 ChangenetworksettingsinthePC(optional) __________________ 113.1.2 Configureaddresses/portsintheAdvancedPC _________________ 113.1.3 Configureaddresses/portsintheTECunits ____________________ 13

3.2 StarttheTECAdvancedPCweb ______________________________ 13

4 Operation ______________________________________________________ 144.1 Loginprocedure ____________________________________________ 144.2 Quickmenu _______________________________________________ 144.2.1 Statuslights ____________________________________________ 144.2.2 Navigationbar _________________________________________ 154.2.2.1 Transformerinformationoverview _______________________ 154.2.2.2 Transformertemperatures ______________________________ 184.2.2.3 Cooling ____________________________________________ 204.2.2.4 Tap-changercontactwear ______________________________ 214.2.2.5 Tap-changertemperature _______________________________ 224.2.2.6 Eventlist ___________________________________________ 234.2.2.7 Hydrogengas ________________________________________ 264.2.2.8 Moistureinoil _______________________________________ 27

4.3 Navigationwithtopmenu ____________________________________ 284.3.1 Extramenu _____________________________________________ 294.3.1.1 Siteoverview ________________________________________ 294.3.1.2 Extrasignals ________________________________________ 314.3.1.3 IOsignals ___________________________________________ 324.3.1.4 Cabinet _____________________________________________ 334.3.1.6 Hot-spotforecast _____________________________________ 344.3.1.7 24hhot-spotforecast __________________________________ 364.3.1.8 Allhistory __________________________________________ 38

4.3.2 Settingsmenu___________________________________________ 404.3.2.1 Settings ____________________________________________ 40

4.3.3 Reportsmenu ___________________________________________ 404.3.3.1 Statusreport _________________________________________ 404.3.3.2 Configurationreport __________________________________ 414.3.3.3 Servicelog __________________________________________ 41

Type TEC, Transformer Electronic Control System – Advanced PC User’s Manual

4.3.4 Maintenancemenu _______________________________________ 424.3.4.1 Database ___________________________________________ 424.3.4.2 Documentation/Video _________________________________ 434.3.4.3 TECUnit ___________________________________________ 444.3.4.4 DownloadTECconfiguration ___________________________ 44

4.3.5 Helpmenu _____________________________________________ 454.3.5.1 Contentsandindex ___________________________________ 454.3.5.2 Documentation/Video _________________________________ 454.3.5.3 About ______________________________________________ 45

AppendixACommaSeparatedValues(CSV)file ________________________ 46

AppendixBFrequentlyAskedQuestions(FAQ) _________________________ 47

Appendix C Guide for load and temperatures ___________________________ 48

Appendix D Hot-spot calculation method ______________________________ 50

1ZSC000857-AAN en 7


1 About this manual1.1 General

This manual describes the user interfaces in the Transformer Electronic Control (TEC) Advanced PC.TheTECAdvancedPCisusedforconnectingtoTECcabinetsoveraTCP/IPnetworkusingthe web browser Internet Explorer®.

Theinformationinthismanualisintendedforoperators.Thereaderofthismanualshouldunder-standthehardwareandsoftwarefunctionalityoftheTECsystem.

1.2 TerminologyThe following is a list of terms associated with the TEC system with which you should be fa-miliar.ThelistcontainstermsandabbreviationsthatareuniquetoABBorthathaveausageordefinitionthatisdifferentfromstandardindustryusage.

Test Description

TEC TransformerElectronicControl.

TECAdvancedPC ThePChardwarecontainingtheTECAdvancedPCweb.

TECAdvancedPCWeb ThewebsystemontheTECAdvancedPC.

HEX FileextensionforprogramfilesontheTECsystem.Theabbrevia-tionstandsforhexadecimalfile.

OPC OLEforProcessControl.

1.3 Related documentationThetablebelowlistsalldocumentationrelatedtotheTECsystem.

Title Document ID Description

Installation and Commission-ing Guide

1ZSC000857-AAC DescribesinstallationandconfigurationoftheTECsystem.

Hard Facts 1ZSE954003-003 Sales document that describes the basics and funda-mentalsoftheTECsystem.

User’s Manual TEC Monitor

1ZSC000857-AAD This document describes the different functionalities of the TEC and how operators work via the cabinet displayorthewebinterface.

Maintenance Guide

1ZSC000857-AAF This document contains descriptions about the TEC embeddedwebinterfaceandhowtoloadHEXfilesintotheTEC.Thisdocumentisintentedforoperators.

Technical Guide

1ZSC000857-AAB This document contains detailed technical informa-tionabouttheTECsystem.Theguideisusefulforthetransformerdesigners.

1ZSC000857-AAN en8


2 System overview2.1 Advanced PC

TheTECAdvancedPCsystemoperatesinaWindowsServer®2003R2environment.Thesystemispre-installedwiththeoperatingsystemalreadyconfigured.

Before you connect the computer to the internet

Connectbehindahardware-basedfirewallifavailable.

Make sure your computer has anti-virus software installed and it has been updated on a regularbasis.

Makesureyouroperatingsystemisuptodate,withallcriticalupdatesitmayneed.

Ifthesemeasuresarenottaken,ABBacceptnoresponsibilityfortheriskofvirusinfection.Inad-dition,thePCwarrantywillnotbevalid.ABBacceptsnoresponsibilityforthirdpartyprogramsorsoftwarethatmaycausemalfunctionofthedeliveredsystem.

2.2 User interfaceTheTECAdvancedPCinterfaceconsistsofthefollowinggraphicalobjects:

1

2

3

tec_00237

Quick menu Thismenuallowstheusertoquicklynavigatethemostimportantsectionsinthesystem.Seesection4.2formoreinformation.

Top menu Thismenuallowstheusertonavigatethedifferentsectionsinthesystem.Seesection4.3formoreinformation.

Content area Thisiswherethedifferentsystempagesareshown.

•

•

•

1.

2.

3.

1ZSC000857-AAN en �


2.3 User rolesTheTECAdvancedPCwebhasthreedifferentaccesslevels:

NOTE: The TEC Advanced PC web could have other login accounts than the TEC Advanced PC.

User Password Access rights

user user This user account can only view events in the event log and cannot set a new service dateforcoolergroups.

maintenance maintenance This user account has access to select events andclearthem.Thisuseraccountcanalsosetnewservicedatesforcoolergroups.

admin admin Thisuseraccounthasfullsystemaccess.

2.4 User managementThe user passwords can be changed using the user management function which is located on the loginpage.

How to change user passwords

If logged in as a normal user, click the “Logout” text string located in the upper right corner ofthescreen.(Afterthelogout,InternetExplorer® reverts back to the TEC Login page whichisthedefinedHomePage.)

Click“Usermanagement”intheTECLoginpage.

Loginastheadminuser.Enterusernameandpassword(adminisdefaultforboth),thenclick“Login”.

Selectauserinthemenu.Enteranewpasswordintheboxandclick[Resetpassword].

How to reset user passwords




Click[Resetallpasswords].

1.

2.

3.

4.

1.

2.

3.

4.

1ZSC000857-AAN en10


How to disable the TEC Login page and make admin the default user




Selectthe“Disablelogon”checkbox.Theadminuserwillnowbethedefaultuserandnologinisrequired.

How to enable the TEC Login page

Edit the text in the Internet Explorer® address bar and add the following string: “userManager.aspx”.

De-selectthe“Disablelogon”checkbox.Theloginpageisnowenabled.

How to do a master reset of all passwords if the admin password is lost



Loginastheadminuser,butuse“e4thgw”aspassword,thenclick[Resetallusers]. Alluserpasswordsarenowresettotheirdefaultpasswords.

1.

2.

3.

4.

1.

2.

1.

2.

3.

1ZSC000857-AAN en 11


3 First time configurationBeforetheTECAdvancedPCcanbeused,ithastobeconfigured.EachTECunitconnectedtotheAdvancedPCneedsuniqueIPaddressesandAdvancedPCports.ThisisconfiguredinthenetworksettingsoftheAdvancedPCandbyusingtheTECAdvancedPCwebinterface.

3.1 InstallationBydefault,theTECsystemIPaddressissetto192.168.1.10andtheIPaddressofaTECunitissetto192.168.1.100.Dependingonnetworkconfiguration,thismayneedtobechanged.

If,forexample,morethanoneTECunitisusedinthesamenetwork,atleastoneTECIPaddressneedstobechanged.Alternatively,ifthesystemrequiresanotherIPaddress,thesystemIPad-dressandtheIPaddressesofeachTECunitneedtobechanged.YoualsohavetodefineeachTECunit’sconnectedIPaddressandportnumberontheAdvancedPC.

3.1.1 Change network settings in the PC (optional)IftheAdvancedPCisinstalledonanetworkwithdevicesotherthanTECunits,theIPaddressoftheAdvancedPCmayneedtobechanged.Ifnecessary,contactyourlocalnetworkmanager.

To change the network address:

Click[Start]andthenclick[ControlPanel].

IntheControlPanelwindow,double-click“NetworkConnections”.

Inthe“NetworkConnections”window,select“LocalAreaConnection”. (Theremightbeotheralternatives,butonlyonehas192.168.1.10asthesystemIPaddress).

Intheselected“LocalAreaConnectionStatus”window,click[Properties].

Inthe“LocalAreaConnectionProperties”window,select“InternetProtocol(TCP/IP)” andthenclick[Properties].

Inthe“InternetProtocol(TCP/IP)Properties”window(under“Usethefollowing IPaddress”),changetheIPaddressandthenclick[OK].

3.1.2 Configure addresses/ports in the Advanced PCThe“Siteconfiguration”pageisusedtoconfigurethecontentsofthe“Siteoverview”pageaswellastoshowdetailedinformationabouteachTECunit.NoTECunitsarevisibleuntilyouhaveconfiguredtheaddresses/ports.

SelectandconfigureoneTECatatime.UptonineTECunitscanbeconnectedtoeach AdvancedPC.

StarttheTECAdvancedPCweb(seesection3.2).

1.

2.

3.

4.

5.

6.

1.

1ZSC000857-AAN en12


Click[Siteconfiguration]toopenthe“Siteconfiguration”page.TheavailableTECunitsshouldnowbevisibleonthe“Siteconfiguration”page.

Click[Edit]fortheTECunittobeconfigured.BeginwiththeTECunitwiththehighestnumber(forinstanceTEC3)andfinishwithTEC1.OrstartwithTEC2,continuetothehighestnumber,andfinishwithTEC1.

Ifnecessary,changetheOPCserver’sIPaddress(thesameOPCaddressappliestoall TECunits).ThisshouldbetheIPaddressoftheAdvancedPC.

Ifnecessary,changetheOPCserver’sportnumber(Asdefault,TEC1uses2727,TEC2uses2728,andsoon).

Ifnecessary,changetheIPaddressesofTECunits.

Ifnecessary,changetheTECunit’sportnumber.ThisshouldbethesameastheOPC server’sportnumber.

Click[Activate]todisplaytheTECunitonthe“Siteoverview”page.

Repeatsteps2-10forthenextTECunit.Continueuntilallunitsareconfigured.

Click[Siteoverview]toopenthe“Siteoverview”page.

PanelswiththeactivatedTECunitsshouldnowbevisibleonthe“Siteoverview”page.

2.

3.

4.

5.

6.

7.

8.

9.

10.



3.1.3 Configure addresses/ports in the TEC unitsVerifythattheTECunitshavebeenconfiguredwithuniqueIPaddresses.Ifthisisnotthecase,seesection3.1.5.1inMaintenance Guide, 1ZSC000857-AAF.Thenproceedasfollows:

Onthe“Siteoverview”page,click[Open]onthepanelfortheTECunittobe configured.

OntheTECunit’soverviewpage,selectMaintenanceandthenclick“TECunit”.

Onthe“ConnecttoTEC”page,clickthe“TECMaintenance”linktoopenthe TECMaintenancepage.

NOTE: This can only be done from the same local network as the TEC.

To log in on the server, choose the appropriate user level (admin), enter the correct user ID andpasswordfortheTEC,andthenclick[OK].

Onthe“TECMaintenance”page,selectTECandthenclick“SetIPaddress”.

Onthe“SetIPaddress”page,verifythattheIPaddressandportnumberofthe“OPCserver/TECPC”istheIPaddressoftheAdvancedPCandtheportnumberconfiguredintheAdvancedPCforthisTECunit.Ifnot,correctthevaluesandclick[Execute].

Click[OK]intheconfirmationquestionbox.

NOTE: If the TEC IP address is changed, you need to restart Internet Explorer® and enter the new IP address in the URL field.

Repeatsteps1-7forthenextTECunit.Continueuntilallunitsareconfigured.

3.2 Start the TEC Advanced PC web ToopentheTECAdvancedPCweb,double-clicktheInternetExplorer® icon on the desk-toporclick[Start]andthenclick[ControlPanel].TheTECAdvancedPCwebshouldstartautomatically.

Ifitdoesnot,type“http://localhost”intheURLfieldandpress[Enter].TheTECAdvancedPCwebwillnowstart.

To log in, choose the appropriate user level (admin), enter the correct user ID and password, andthenclick[Login].The“Siteoverview”pageshouldnowbevisible.

1.

2.

3.

4.

5.

6.

7.

8.

1.

2.

3.

1ZSC000857-AAN en14


4 OperationNavigateintheTECwebbyusingthequickbuttonstotheleftorbyusingthemenusattheupperpartofthescreen.ThetopmostquickbuttonisusedtonavigatebacktotheTECwebstartpage.Thequickmenubuttonsarealwaysavailable.

Tool tips are available when holding the cursor over an item and are only shown on the transform-eroverviewpage.Theyarealsoavailablewhenholdingthecursoroveragraph.

Ifasensorhasfailedorisdisabled,a“*”isdisplayedinsteadofthevalue.Alltextformssupportalphanumericcharacters.Thecharacters(and)arealsosupported. Othercharacterscancausesysteminstabilityandshouldnotbeused.

4.1 Login procedureBeforeusingtheAdvancedPCwebinterface,youhavetologon withavaliduseraccount.Theimagetotherightisshownwhen startingInternetExplorer®.

Tologin,enteravalidusernameandpassword,thenclick“Login”.

tec_002�2

4.2 Quick menu

The quick menu consists of two items: the status lights (1) and thenavigationbar(2)withthequickbuttons.

tec_00242

4.2.1 Status lightsEachquickbuttonhasacolorstatusindicator.Normaloperationis indicatedbyagreencolorindicator.Sensorfailure,overheatingoranyother deviation from normal operation will cause the color indicator to turnyelloworredforthebuttonassociatedwiththeevent.Formoreinformationaboutevents,seesection4.2.2.6.

The status indicator of the topmost button is always set to the most seriousstatusindicationamongtheotherquickbuttons.

tec_00241

1 21 2

Normal(green)

Warning(yellow)

Alarm or trip(red)

Normal(green)

Warning(yellow)

Alarm or trip(red)



tec_00236

4.2.2 Navigation bar ThenavigationbarallowsyoutonavigatequicklytothemostimportantfunctionsoftheTEC.

The navigation bar consist of the following quick buttons:

Transformer information overview

Transformer temperature

Cooling

Tap-changer contact wear

Tap-changer temperature

Event list

Hydrogen gas

Moisture in oil

4.2.2.1 Transformer information overview

Use the transformer information overview button to display the actual systemstatus.

tec_00252

Bottom oil temperature Thebottomoiltemperatureofthetransformertankisdisplayedhere.

•

•

•

•

•

•

•

•

1.

4 5 6

1

2

3

7

8

9

10

11

12

4 5 6

1

2

3

7

8

9

10

11

12

1ZSC000857-AAN en16


Hot-spot temperature Thecalculatedhot-spottemperaturesinthetransformerwindingsaredisplayedhere.Thetopmost value is the high-voltage winding temperature and the bottom value is the low volt-agewindingtemperature.Thehot-spottemperatureiscalculatedaccordingtoIEC60354(1991-09)atOFcooling. NOTE : The top oil can be warmer than the hot-spot at low loads. The hot-spot tempera-ture is calculated without delay (winding time constant = 0). Coolers will therefore start earlier at a rapid load increase.

Top oil temperature Thetransformertanktopoiltemperatureisdisplayedhere.Ifthesensorfails,thetopoiliscalculatedbasedonthebottomoiltemperature.

Current in high voltage bushing Thecurrentinthehighvoltagebushingisdisplayedhere.Ifthesensorfails,thecalculatedhot-spotofthatwindingwillberecalculatedwiththecurrentfromtheotherwinding.Theaccuracyofthecurrentmeasurementisapproximately3%offullload.

Current in low voltage bushing Thecurrentinthelowvoltagebushingisdisplayedhere.Ifthesensorfails,thecalculatedhot-spotofthatwindingwillberecalculatedwiththecurrentfromtheotherwinding.The accuracyofthecurrentmeasurementisapproximately3%offullload.

Current in tertiary voltage bushing Thecurrentinthetertiaryvoltagebushingisdisplayedhere.Ifthesensorfails,thecalcu-latedhot-spotofthatwindingwillberecalculatedwiththecurrentfromtheotherwinding.Theaccuracyofthecurrentmeasurementisapproximately3%offullload.

Info box This box contains information about:

Current load ratio

Outsidetemperatures(SunlighttemperatureandAmbienttemperature) Twosensorsareused,onelocatedinthesunandoneintheshade.Calculationsareprimarilybaseduponthetemperatureintheshade.Iftheshadesensorfails,thevaluefromthesunsensorwillbedisplayedandusedincalculations.Ifthesunsensorfails,anabnormalvaluewillbedisplayed,butthisdoesnotinfluenceanycalculations.

When you click the arrow, the following values are shown:

Ageing Thecalculationisbasedonthehot-spottemperatureinthehottestwinding. Ageing is calculated according to: •IEC60076-7fornon-thermallyupgradedpaper. •Theexpectedservicelifewillonlybeusedforreferencepurposes. •IECspecifiestheexpectedservicelifeto150,000h=17.1years • Moisture content of insulation is not taken into consideration

2.

3.

4.

5.

6.

7.

•

•

•



Theageingisexpressedas“Accumulatedinyears”and“RelativeNow”:

Accumulated in years “Accumulated in years” is the calculated ageing of the winding since the TEC began conductingthemeasurements.

Relative Now (%) At“RelativeNow(%)”,theageingrateisdisplayedasa%oftheageingrateat98ºC (IEC).The“Relative(ageing)Now(%)”iscalled“Relativeageingrate”byIEC. If the hot-spot temperature of the hottest winding cannot be calculated, for instance because of a current transformer failure, the second hottest winding will be used for theagingcalculation.

Overload capacity Predictionsofthehighestallowedloadwithoutthetopoilandhot-spottemperatureexceed-ingpresentvaluesintheorderdatasheet.

Tap-changer position and temperature Thetap-changerpositionandtap-changeroiltemperaturearedisplayedhere.Ifasensorfails,novaluewillbedisplayed.UCandUBtap-changersarenormallylocatedatthetrans-formercover. In normal service conditions, the temperature of the tap-changer should not be more than 10-15°Chigherthanthetransformertopoiltemperature.Fortap-changersinindustrial applications,thetemperaturecanbeupto25°Chigherthanthetopoiltemperature. The UC tap-changer is sometimes assembled in a separate compartment on the transformer tankwall.Inthesecases,thetemperatureofthetap-changercanbelower,especiallyifthereisnooilconnectionbetweenthetransformerandthecompartment.UZtap-changersareassembledonthetransformertankwall. In normal service conditions, the temperature of the tap-changer should be less than the transformertopoiltemperature.Undersometransformerstart-upprocedures,theUZtap-changercanbewarmerthanthetransformerforsomehours.Thetemperatureofatap-changerinanindustrialapplicationcanbehigherthanthetransformertopoiltemperature.

Moisture in tap-changer detection Theamountofmoistureinthetap-changerisdisplayedhere.

Moisture in oil detection Theamountofmoistureinthetransformeroilisdisplayedhere.

Hydrogen gas detector Thehydrogenequivalentinthetransformertankisdisplayedhere.Thissymbolisdisplayedwhenahydrogengasdetectorisinstalled.Thevalueisdisplayedinppm(partspermillion)or%RH(RelativeHumidity).

Cooling Thestatusofthecoolergroupsisdisplayedhere.Abluerotatingfansymbolrepresentsanactivatedcoolergroup,anorangefansymbolrepresentsanon-activecoolergroup.

•

•

8.

9.

10.

11.

12.

1ZSC000857-AAN en18


4.2.2.2 Transformer temperatures

Use the transformer temperature button to display the temperatures for thetransformer.

Choose the values to display by checking the values on the right, then enter anappropriatetimeframeandclick[Apply].

tec_00253

tec_00263

Set time frame

Thispanelcontainsinputfieldsfortheconfigurationofthetransformertemperaturesgraph’stimeframe.

Start date Dateoffirstvaluetobedisplayed.

hh:mm Timeoffirstvaluetobedisplayed.

End date Dateoflastvaluetobedisplayed.

hh:mm Timeoflastvaluetobedisplayed.

Line resolution type Max-Maximumvalueduringthelastmeasurementperiod. Average-Averagevalueduringthelastmeasurementperiod. Min-Minimumvalueduringthelastmeasurementperiod.

Buttons

Apply Redrawsthegraphbasedonthenewconfigurationdata.

Print Printsthegraphbasedonthechosenconfigurationdata.

1ZSC000857-AAN en 1�


Check boxes

Thetransformertemperaturesgraphwilldisplaythevaluesaccordingtothechosencheckboxes.

TopoilºC Topoiltemperatureintransformer.

BottomoilºC Bottomoiltemperatureintransformer.

Ambient shadow tem-peratureºC

Ambienttemperatureinshade.

Hot-spot High volt-agesideºC

Hot-spottemperaturesinwindings.

Hot-spot Low voltage sideºC

Hot-spottemperaturesinwindings.

Loadratio%(Y2) Loadratioisshowninthegraphusingtherightaxis(Y2).Loadratioisthecalculatedloadforthetransformer.

Peakload%(Y2) Peakloadisshowninthegraphusingtherightaxis(Y2).Peakloaddisplaysthehighestloadvalueduringthechosentimeinterval.

Transformer balance TopoilºC

Theoreticalcalculatedtransformertopoiltemperatureisshownhere.Couldbecomparedwithmeasuredtemperaturefortransformerstatus.

Transformer balance BottomoilºC

Theoretical calculated transformer bottom oil temperature is shown here.Couldbecomparedwithmeasuredtemperaturefortransformerstatus.

1ZSC000857-AAN en20


4.2.2.3 Cooling

Usethecoolingbuttontoshowmoredetailedinformationofthecoolergroups.tec_00254

tec_00264

Status

Shows the status of the cooler group:

Green Thecoolingsystemisworkingproperly.

Yellow Thecoolingsystemmaybemalfunctioning. Lookintheeventlistformoreinformation.

Gray Acommunicationerrorhasoccuredinthedata.

Time in operation

Showshowmanydaysthecoolergrouphasbeeninoperation.

Time in operation since last service

Showshowmanydaysthecoolergrouphasbeeninoperationsincelastservice.

For service information, see Maintenance Guide, 1ZSC000857-AAF.



tec_00255

tec_00262

4.2.2.4 Tap-changer contact wear

The contact wear calculation is made for each operation with the actual loadcurrent.Theweariscalculatedoneachcontactinthetap-changer.

The contact wear function should be seen as a reminder and prediction for whenoverhaulandcontactexchangeareneeded.Fortap-changersthatarenotfrequentlyoperated,thetimebetweenoverhaulswillbethelimitingfactor.Inthesecases,theriskofmoistureintheoilwillbethereasonforoverhaul.

Tap-changers that are operated so frequently that the amount of operations will bethelimitingfactor,canalsotakeadvantageofthecontactwearfunctionality.The TEC can then be used to prolong the time between overhaul and contact exchangewhenactualcontactwearisused.Notethatwhenthecounteronthetap-changer motor-drive mechanism reaches 500,000 operations, the contacts mustbereplacedtosecurethefunctionalityofthecontactsprings.

Thecalculationsdonottakethepowerflowdirectioninthetap-changerintoaccount.Thiswillhavenopracticaleffect,butthecontactwearontransitioncontactsintheUZandUBcanbeaffected.

Operations

The tap-changer contact wear button is used to show a window that displays the number of tap-changer operations, the time to service, the time to contact exchange, and the wear on each of the moving tap-changercontacts.

TAP-CHANGERTYPE Displaysthetypeoftap-changertheTECisconfiguredfor.

OPERATIONSMADE Totalnumberofoperationsmade.

Column Description

Time to service This column shows the number of operations and estimated time left to nextservice.

Time to contact ex-change

This column shows the number of operations and estimated time left to nextcontactexchange.

Total wear Amount of contact wear in grams, considering the actual load at each operation.

Operationsmade Total number of mechanical operations made since the tap-changer was takenintoserviceforcontactchange.Thisvaluecandifferfromthevalue on the mechanical counter on the tap-changer if the TEC does not run continuously (the TEC only registers operations when powered on,theTECsavesoperationstomemoryonceaday).Notethatfromamechanical(springs,etc.)pointofview,thecontactsmustbereplacedafter500,000operations,whetherthecontactsarewornoutornot.

1ZSC000857-AAN en22


tec_00268

Operationsleft Assumingthefutureloadwillbesimilartotheservicehistory.Thiscalculation is based upon contact wear, assuming that oil quality is maintainedaccordingtothetap-changer’smaintenancemanual.

For service information, see Maintenance Guide, 1ZSC000857-AAF.

4.2.2.5 Tap-changer temperature

Use the tap-changer temperature button to display the tap-changer temperatureandloadhistoryofthetransformer.

Choose the values to display by checking the values on the right, then enteranappropriatetimeframeandclick[Apply].

tec_00256

Set time frame

Thispanelcontainsinputfieldsfortheconfigurationofthetap-changertemperaturegraph’stimeframe.






Buttons





tec_00257

Check boxes

Thetap-changertemperaturegraphwilldisplaythevaluesaccordingtothechosencheckboxes.

Tap-Changer 1 Temperature TemperatureofTap-Changer1.



Tap-Changer4Temperature TemperatureofTap-Changer4.

Ambient shadow temperature Temperatureintheambientshade.

Tap-Changerpositionpos(Y2) Tap-Changerposition.

Loadratio%(Y2) Loadratioin%.

4.2.2.6 Event list

Usetheeventlistbuttontoopentheeventlistwindow.Thewindow contains two different types of lists:

Alarm lists

Alleventslists.

Eventsindicatedbythestatuslights,seesection4.2.1formoreinformation,arerecordedintheeventlist.Youcanonlyacknowledgeorreseteventsifyouareloggedonwiththemaintenanceuseroradminuseraccount.

The alarm list is the default list and is displayed when the event list window isrequested.

Onlyactiveeventswillbedisplayedinthealarmlist.Thealleventslistdis-playsacknowledgedeventsanduserevents(namedNote)inadditiontothealarmlist.

Noeventsareautomaticallyacknowledgedbythesystem,alleventshavetobeacknowledgedmanuallyexceptforthelossofcommunicationevent.Onlyeventsthatarebeneaththeeventlevelcanbeacknowledged.

•

•

1ZSC000857-AAN en24


tec_00260

Column Description

Time Thistimeissetwhentheeventsignalreachesthestationcomputer.

Event Type ShowsiftheeventisaNote,SensorError,Warning,AlarmorTrip.

Function DescribeswhicheventgrouptheNote/Alarm/Warning/Tripbelongsto.

Description Describestheeventwithashorttext.

Ack.AtTime Dateandtimewhentheeventoralarmwasacknowledged.

Signature Thiscolumnshowstheinitialsofthepersonwhosignedtheevent.

Event type

Note(Userevent) Informationevent,forexampletheTECbeingrestarted.Doesnoteffectthetrafficlightsandisnotshowninthealarmlist.

Sensor Error Indicatesasensorfailure.Thevaluesarenotvalid.

Warning Ayellowstatuslightisturnedonwhenthewarninglimitispassed.Fordigitalsignalsthelightisturnedonwhenthesignalchangesfrom0to1.

Alarm Aredstatuslightisturnedonwhenthealarmlimitispassed.Fordigitalsignalsthelightisturnedonwhenthesignalchangesfrom0to1.

Trip Aredstatuslightisturnedonwhenthetriplimitispassed.Fordigitalsignalsthelightisturnedonwhenthesignalchangesfrom0to1.



How to acknowledge an event

ChoosethedesiredeventinthelistbyclickingtheInfobuttonintheleftmostcolumn. Theeventinformationisexpandedbelowtheeventrow.

Enterasignatureinthesignaturefield.Youcanalsoenteranoptionaldescriptioninthedescriptionfield.

Click[Acknowledge].

How to reset an event

ChoosethedesiredeventinthelistbyclickingtheInfobuttonintheleftmostcolumn. Theeventinformationisexpandedbelowtheeventrow.

Typetheinitials(max.eightcharacters)intheSignaturefield.Youcanalsoenteran optionaldescriptioninthedescriptionfield.

Click[Reset].

tec_00261

When the acknowledge request is sent to the TEC, the selected event will be cleared in the TEC systemiftheeventhasreachednormalconditionagain.

Iftheeventisstillinalarm/eventcondition,itwillbelistedinthealarmlist.Onceacknowledgedtheeventwillbetransferredtotheeventlist.

Whenalleventsareinnormalconditionandhavebeenreset,theflashingredoryellowlightswillgooutandturngreenagain.

More information about the event is shown under Error and Diagnosis in the expanded event information.

1.

2.

3.

1.

2.

3.

1ZSC000857-AAN en26


tec_00258

4.2.2.7 Hydrogen gas

Use the hydrogen gas button to display the hydrogen gas level and load historyforthetransformer.Thispanelishandledthesamewayasthe panelforthetransformertemperatures.


tec_00266

Trend analysis (real time)

Actualtrendsarecalculatedinthispanel.Thetrendscanbeusedtopredictwhetherthehydrogenppmvaluesarerisingornot.Iftheloadratioexceedsapresetvalue,analarmistriggeredandplacedinthealarmlist.

ppm/Hour Theshort-termtimeincrease.

ppm/Day Themedium-termtimeincrease.

ppm/Month Thelong-termtimeincrease.

Set time frame

Thispanelcontainsinputfieldsfortheconfigurationofthehydrogengraph’stimeframe.








tec_0025�

Buttons



Check boxes

Thehydrogengraphwilldisplaythevaluesaccordingtothechosencheckboxes.

Hydrogen gas ppm Theactualvalueforthehydrogengasppm.

Loadratio%(Y2) Theactualloadratio.

Peakload%(Y2) Thepeakloadratio.

4.2.2.8 Moisture in oil

Use the moisture in oil button to display the amount of moisture in the oil inthetransformertank.Thispanelishandledinthesamewayasthepanel forthetransformertemperatures.


Pleaserefertotheusermanualofthemoisturesensorusedintheactualinstallationformoredetailedinformationaboutmoisturedetection.

tec_00267

Set time frame

Thispanelcontainsinputfieldsfortheconfigurationofthemoistureinoilgraph’stimeframe.



1ZSC000857-AAN en28





Buttons



Check boxes

Themoistureinoilgraphwilldisplaythevaluesaccordingtothechosencheckboxes.

TransformerMoisturemT(Y2) Moisture in the transformer is displayed in the graph using therightaxis(Y2).

Tap-Changer Moisture mO(Y2)

Moisture in the tap-changer is displayed in the graph using therightaxis(Y2).

Tap-Changer 1 Temperature °C Temperatureintap-changer1.

Top oil °C Topoiltemperatureintransformer.

Bottom oil °C Bottomoiltemperatureintransformer.

Ambient shadow temperature °C

Ambienttemperatureinshade.

4.3 Navigation with top menuThissectiondescribeshowtonavigatethroughthetopmostmenu.Thetopmenuconsistsofthefollowing menus:

Extra

Settings

Reports

Maintenance

Help.

•

•

•

•

•



4.3.1 Extra menuThe Extra menu consists of the following menu items:

Site overview

Extra signals

IOsignals

Cabinet

Hot-spot forecast

24hourforecast

Allhistory.

4.3.1.1 Site overview

UsethismenuitemtodisplaytheSiteoverviewpagewithanoverviewofallconnectedTECs. ToviewdetailedinformationandconfigureeachTEC,click[Siteconfiguration].

TonavigatetoaspecificTEC,click[Open].

.

1

tec_002�1

Apage,TECOverview-SpecifiedInterfaces,showingmoredetailedinformationabouteach TEC,isdisplayed.YoucanalsoconfiguretheTECsfromthispage.

tec_0026�

•

•

•

•

•

•

•

1ZSC000857-AAN en30


ToviewtheversioninformationofthesystemcomponentsintheTECAdvancedPC,select Version informationinthemenu.

tec_00270

How to configure a TEC

Click[Edit]fortheselectedTEC.

Makeyourchanges(forexample,seesection3.1.2).

Click[Refreshstatus]toseethechangestotheconfiguration.

ToreturntotheSiteoverview,click[Siteoverview].

Click[Connect]toestablishcommunicationwiththeTECunit.

Click[Refreshstatus]toseeiftheconfigurationhasbeensuccessful.

Click[OK]toclosetheconfigurationpanelfortheselectedTECunit.

Icons used in the Specified interface

TECisconnectedandactivated.

TECisnotconnectedbutactivated.

TECisconnectedbutnotactivated.

TECisneitherconnectednoractivated.

CommunicationcanbeestablishedwiththeTEC.

CommunicationcannotbeestablishedwiththeTEC.

1.

2.

3.

4.

5.

6.

7.



4.3.1.2 Extra signals

UsethismenuitemtodisplayagraphwithallextraanalogsignalsconfiguredintheTEC.

Choose the values to display by checking the values on the right, then enter an appropriate time frameandclick[Apply].

Forinformationabouthowtoconfigureextrasignals,seeMaintenance Guide, 1ZSC000857-AAF.

tec_00271

Set time frame

ThispanelcontainsinputfieldsfortheconfigurationoftheExtrasignalsgraph’stimeframe.






Buttons



Check boxes

TheExtrasignalsgraphwilldisplaythevaluesaccordingtothechosencheckboxes.

1ZSC000857-AAN en32


How to configure extra signals

Click the ABB logo or select Site overviewfromtheExtramenu.

Click[Siteconfiguration].TheTECOverview-SpecifiedInterfacespageisdisplayed.

Click[Edit]fortheTECyouwanttoconfigureextrasignalson. The“ConfigSettings”pageoftheselectedTECisdisplayed.

Click[Viewconfigsettings].

Selectwhichextrasignalshouldbeshown.Onlythesignalswithagreencircleareavail-able.Atotalof26analogand48digitalsignalsareavailable.

Click[Apply].Theextrasignalsarenowconfigured.

ToreturntotheSiteoverview,click[Siteoverview].

NOTE: If the extra signal configuration is changed on the TEC Advanced PC, it may take up to two minutes for the changes to take effect. You may have to reload the page after the changes take place.

4.3.1.3 IO signals

UsethismenuitemtodisplaylistswiththeIOsignalsfromtheTEC.

tec_00281

1.

2.

3.

4.

5.

6.

7.



tec_00185

4.3.1.4 Cabinet

Use this menu item to display histograms with the environment conditions in the TEC cabinet/case.ThispageislinkedtotheactualTEC.

Cabinet conditions at present time

Thetemperatureandhumidityvaluesatthepresenttimearedisplayedinthefieldsabovethetwohistograms.

Accumulated conditions

The histogram contains the accumulated temperature and relative moisture readings, and is up-datedeveryday.Valuesarerecordedonceanhour,giving24newvaluesforbothtemperatureandrelativemoistureeachday.

Temperature Eachhour,atemperaturevalueissaved.The24newvaluesareaddedtothehistogrameveryday.Inthehistogram,thetemperaturesaresplitupintogroups.Thegroupscoveranintervalof10°C,withthelowestvaluedisplayed.Thismeansthat-40°Crepresentstheinterval-40°Cto-30°C,and20°Crepresents20°Cto30°C.

Relative humidity Eachhour,onehumidityreadingissaved.The24newvaluesareaddedtothehistogrameveryday.Inthehistogram,thehumidityreadingsaresplitupintogroups.Thegroupscoveranintervalof10%,withthelowestvaluedisplayed.Thismeansthat0%relativehumidityrepresentstheinterval0%to<10%,and50%represent50%to<60%.

If a sensor or electronic device fails, the status lights at the bottom of the panel turn yellow/red andthenameofthefailingsensor/deviceisdisplayed.ThefailureisalsorecordedintheEventLog(seesection4.2.2.6).

•

•

1ZSC000857-AAN en34


4.3.1.6 Hot-spot forecast

Usethismenuitemtodisplayahot-spotforecast.Thehot-spotforecastisusedwhenyouwanttosimulatethetransformertemperaturesduringcertainuserdefinedloadintervals.

Choose the value to display by checking the check box on the right, then enter an appropriate time frameandstartvaluesandclick[Apply].

NOTE: Load and ambient temperatures are automatically set according to the actual tempera-tures in the TEC.

tec_00273

Start values

Thispanelcontainsinputfieldsfortheconfigurationofthestartvaluesofthehot-spotforecast.

Top oil Selectedstarttemperatureforthetopoil.

Ambient Ambienttemperature.

Cooling capacity Actualcoolingcapacity.

Thermal ageing

The thermal ageing information box shows the total ageing that will occur if the transformer is loadedaccordingtotheforecast.



Base for loading

Thispanelcontainsinputfieldsforthebasevaluesfortheloadingofthehot-spotforecast.

Max hot-spot Selectedmaxhot-spottemperature.

First step load Load ratio for the transformer until the selected hot-spot temperature is reached.

Second step load Enter a load ratio for the transformer after the selected hot-spot tempera-tureisreached.

Buttons



Check boxes

Thehot-spotforecastwilldisplaythevaluesaccordingtothechosencheckbox.

Hot-spot High voltage side °C Hot-spottemperaturesinwindings.

1ZSC000857-AAN en36


4.3.1.7 24h hot-spot forecast

Usethismenuitemtodisplaya24hhot-spotforecast.The24hhot-spotforecastisusedwhenyouwanttosimulatethetransformertemperaturesduringcertainuserdefinedloadintervals.

Choose the values to display by checking the values on the right, then enter load and ambient temperaturevaluesforeveryhourandclick[Apply].

NOTE: Load and ambient temperatures are automatically set according to the actual tempera-tures in the TEC.

tec_00274

24 Hour forecast table

Hour Thehours(1-24)ofthesimulation.

Load Load(foreachhour)ofthesimulation.

Ambient Ambienttemperature(foreachhour)ofthesimulation.



Set Load and Ambient for all 24 hours

Thispanelcontainsinputfieldsandbuttonsfortheconfigurationofthesimulated24hhot-spotforecast.

Load Fieldforentryofloadvalue.

Apply load Changestheloadvaluefortheselectedhourandredrawsthegraph.

Ambient Fieldforentryofambienttemperature.

Apply ambient Changes the ambient temperature for the selected hour and redraws the graph.

Start values

Thispanelcontainsinputfieldsfortheconfigurationofthestartvaluesofthe24hhot-spotfore-cast.

Top oil Selectedstarttemperatureforthetopoil.

Ambient Ambienttemperature.

Load Actualload.

Cooling capacity Actualcoolingcapacity.

Thermal ageing

The thermal ageing information box shows the total ageing that will occur if the transformer is loadedaccordingtotheforecast.

Buttons



Check boxes

The24hhot-spotforecastwilldisplaythevaluesaccordingtothechosencheckboxes.



1ZSC000857-AAN en38


4.3.1.8 All history

UsethismenuitemtodisplayagraphwithallavailablehistorydataontheTECAdvancedPC.

Choose the values to display by checking the values on the right, then enter an appropriate time frameandclick[Apply].

ThevaluesshowninthegraphcanbeexportedtoaCSVfilebyclickingtheCSVicon.ThevaluesintheCSVfilecontainalldataretrievedfromthedatabaseforthespecifiedtimeinterval.

NOTE: When saving the CSV file, a dialog window asks whether to save or open the file. The correct procedure is to save the file to the local hard drive and then open it in MS Excel. See Appendix A for more information about CSV files.

tec_00275

Set time frame

ThispanelcontainsinputfieldsfortheconfigurationoftheAllhistorygraph’stimeframe.






Buttons



CSV Exportsthegraph’svaluestoaCommaSeparatedValues(CSV)file.



Check boxes

TheAllhistorygraphwilldisplaythevaluesaccordingtothechosencheckboxes.

Ambient shadow temperature °C Ambienttemperatureintheshade.

Bottom oil °C Bottomoiltemperatureintransformer.

Transformer balance Bottom oil °C Theoretical calculated transformer bottom oil tempera-tureisshownhere.Couldbecomparedwithmeasuredtemperaturefortransformerstatus.


Hot-spot Low voltage side °C Hot-spottemperaturesinwindings.

Hydrogen gas ppm Showstheactualvalueforthehydrogengasppm.

Loadratio(Y2) Showstheactualloadratio.

Tap-Changerpositionpos(Y2) Showsthetap-changerposition.

Peakload(Y2) Showstheactualpeakratio.

Tap-ChangerMoisturemO(Y2) Moisture in the tap-changer is displayed in the graph us-ingtherightaxis(Y2).

Tap-Changer 1 Temperature °C Temperatureintap-changer1.


Transformer balance Top oil °C Theoretical calculated transformer top oil temperature is shownhere.Couldbecomparedwithmeasuredtempera-turefortransformerstatus.

TransformerMoisturemT(Y2) Moisture in transformer is displayed in the graph using therightaxis(Y2).

1ZSC000857-AAN en40


4.3.2 Settings menuThe Settings menu only consist of one menu item:

Settings

4.3.2.1 Settings

UsethismenuitemtodisplaytheSettingspage.Thispageletstheuserconfigurethefollowingsettings:

Pagelanguage

Temperature units

Graph calendar culture

CSVFiledelimiter.

NOTE: The Windows regional settings affect how the date and time values are displayed.

tec_00276

Buttons

Apply Updatesthesystemwiththenewsettings.

4.3.3 Reports menuTheReportsmenuconsistsofthefollowingmenuitems.

Status report

Configurationreport

Servicelog.

4.3.3.1 Status report

UsethismenuitemtocreateastatusreportfortheTECin.pdfformat.Thereportshowspresentsensorvaluesandactiveevents.

•

••••

•••



4.3.3.2 Configuration report

UsethismenuitemtocreateaconfigurationreportfortheTECin.pdfformat.ThereportsshowspresentsettingsfortheTECunitandtheTECAdvancedPC.

4.3.3.3 Service log

UsethismenuitemtodisplayentriesontheServiceLogpage.TheTECoperatormayaddvari-ousentriesstatingserviceoperationsetc.

tec_00277

How to add an entry to the service log

Click[Addentry].

tec_00278

Writeyourcomment.

Enterasignatureinthesignaturefield.

Whenready,click[OK]andthecommentissaved.

1.

2.

3.

4.

1ZSC000857-AAN en42


4.3.4 Maintenance menuThe Maintenance menu consists of the following menu items:

Database

Documentation/Video

TEC unit

DownloadTECconfiguration.

NOTE: The Maintenance menu is only available when logged in as the admin user.

4.3.4.1 Database

UsethismenuitemtodisplaytheDatabaseMaintenancepage.Thispageletsyouperformcertaindatabasemaintenancesuchasclearinglogfilesandbackingup/restoringthedatabase.

tec_0027�

How to clear database data (Alarm & Events and Collected Data)

Click[Alarm&Events]or[CollectedData](thebuttonwhichstatesthenameof thedatabasedatathatyouwanttoclear)andthedataisclearedfromthedatabase.

How to create a database backup

Click[CreateBackup].

Click[Yes]inthedialogboxaskingwhetheryouwanttomakeadatabasebackup. Thedatabasebackupisstoredasazipfileinafolderwiththedateandtime(forexample:2007-12-24-18-00-00)ofthebackupoccasion.Thebackupfolder(withitszipfile)issavedatD:\DBBACKUPontheAdvancedPC.

Waitafewminutesforthedatabasebackuptocomplete.

•

•

•

•

1.

1.

2.

3.



How to restore a database backup

Selectanexistingbackupfromthelistbox.

Click[Restore].

Waitafewminutes.Thedatabaseisnowrestored.

How to delete a database backup


Click[Delete].

How to download a database backup


Click[Download].ASaveAswindowisdisplayed.

Choosewhereyouwanttosavethebackupandclick[Save].

4.3.4.2 Documentation/Video

UsethismenuitemtodisplaytheBindDocumentpage.Thispageletsyoubindexistingdocu-mentsstoredontheTECAdvancedPC.ThebounditemswillbeshownintheDocument/VideomenuitemintheHelpmenu(seesection4.3.5).

NOTE: The files in the Available files box can only be accessed from the TEC Advanced PC.

tec_00280

1.

2.

3.

1.

2.

1.

2.

3.

1ZSC000857-AAN en44


How to bind a new item

Select an area from the menu Select area. Theselectedareabecomestheheadinginthenewmenuitem.

Select a type from the menu Select Type. Theselectedtypebecomesthesubheadinginthenewmenuitem.

EnterafilenameorselectafileintheAvailablefilesbox.

Click[Bind]tobindtheselectedfile.

How to unbind an existing item

In the menu Select area,selecttheareaofthemenuitemyouwanttounbind.

In the menu Select Type,selectthetypeofthemenuitemyouwanttounbind.

EnterafilenameorselectthefileintheAvailablefilesbox.

Click[Unbind]tounbindtheselectedfile.

How to create new types and areas

Click[Add]nexttothemenusSelect area / Select Type.Anewwindowisdisplayed.

Enteranameforthenewarea/type.

EnteranNLSforthenewarea/type.TheNLSisnottranslatedintheTECtranslationtoolandisonlyavailablewhenusingnativelanguage(seesection4.3.2forchanginglanguag-es).

Click[Save]tosavethenewarea/type.

4.3.4.3 TEC Unit

UsethismenuitemtoopentheTECunits’maintenancepages.ClickonthemenuitemTECunittoopenthemaintenancepages.

ConfigurationoftheTECunitfunctionalitycanbeperformedintheTECmaintenancepages.Formore information, see Maintenance Guide 1ZSC000857-AAF.

NOTE: A connection to the TEC can only be established from the Advanced PC.

4.3.4.4 Download TEC configuration

UsethismenuitemtodownloadtheTECconfigurationreport.Click[Saveas]tosavethecon-figurationreportasatextfileonyourlocalcomputer.

FormoreinformationaboutHEXfiles,seeMaintenance Guide 1ZSC000857-AAF.

1.

2.

3.

4.

1.

2.

3.

4.

1.

2.

3.

4.



tec_00281

4.3.5 Help menuThe Help menu consists of the following menu items:

Contents and index

Documentation/Video

About.

4.3.5.1 Contents and index

UsethismenuitemtoaccesstheonlinehelpfortheTECAdvancedPC.

4.3.5.2 Documentation/Video

Use this menu item to access the documents that are bound in the Maintenance menu (seesection4.3.4.2).

4.3.5.3 About

UsethismenuitemtodisplaytheAboutPage.ThispageshowssysteminformationabouttheTECunit,TECAdvancedPCanditsperipherals.

•

•

•

1ZSC000857-AAN en46


Appendix A Comma Separated Values (CSV) fileTheCSVfileincludesdatafromthesensorvaluesselectedintheAllhistorygraphpage(seesection4.3.1.8).Thecolumnsarebydefaultdelimitedwithacommaandrowsareindescendingorderinthetimecolumn.ThedelimitercanbechangedontheSettingspage(seesection4.3.2).

Thefirstcolumnalwaysshowslocalservertime.

Thefollowingcolumnsarethesameaswerechosenonthegraphpage.

How to import a CSV file into MS Excel

OpenMSExcel.

FromtheFilemenu,chooseOpen.

SelecttheexportedCSVfileandclick[OK]. TheTextImportWizardstarts.

WhenTextImportWizardStep1of3isdisplayed,click[Next].

WhenTextImportWizardStep2of3isdisplayed,choosethecorrectdelimiter.Bydefaultthesemicolonisused.SeetheSettingspage(seesection4.3.2)tomakesureyouareusingthecorrectdelimiter.

When Text Import Wizard Step 3 of 3 is displayed, select the leftmost column and change theColumndataformattoDateYMD.

Click[Finish]tocompletetheCSVfileimport.

1.

2.

3.

4.

5.

6.

7.



Appendix B Frequently Asked Questions (FAQ)The TEC main screen is not displayedTheTECmainscreenisnotdisplayedwhenenteringtheTECcabinetIPaddressintotheInternetExplorer®addressfield.WhatcouldbecausingtheproblemandwhatshouldIdo?

CheckthatcorrectIPaddressesareused,bothfortheTECcabinetandPC.Makesurethenetworkcableandthefiber-opticcableareconnectedcorrectly.CheckthattheTECcabinetisupandrunning.

A value in the main screen is a “*” (star)Thesensorisdisabledorthesensorisbroken.Formoreinformation,seeTechnical Guide, 1ZSC000857-AAB.

When I plot graphs, the line goes below the graph or is missingThesensorisdisabledorthesensorisbroken.Formoreinformationaboutenablingsensors,see Maintenance Guide 1ZSC000857-AAF, and about sensor failures, see Technical Guide, 1ZSC000857-AAB.

There are no values in the graphs and it is not possible to generate a CSV fileCheckthattheTECtimeiscorrect.ThetimecanbecheckedandsetinTECweb/Maintenance/Settings/TEC/SettimeinTEC.Formoreinformation,seeMaintenance Guide 1ZSC000857-AAF.

Some pages cannot be printedMakesurethepopupblockersaredisabledandtrytoprintagain.

Some pages are not working properlyMakesureyouhaveenabledJavaScriptinyourbrowser.

I am having trouble seeing the entire interface on my screenMakesureyourdisplayisusingatleastresolution1024x768.YoucanalsotrytopressF11whenusingtheAdvancedPCwebtomaximizetheinterface.

When printing, the following error message is shown: “Could not print graph, try to apply the graph settings again and retry to print”Changethetimeintervalandtryagain.

The graph does not fit when I try to print itMakesuretheprinterorientationsettingissetto“Landscape”.

1.2.3.

1ZSC000857-AAN en48


Appendix C Guide for load and temperaturesMaximumcurrentandhot-spottemperatures,accordingtoIEC60354(1991-09).

Types of loading Limits for medium power transformers

Limits for large power transformers (see NOTE)

Normal cyclic loading

LoadK(Current(p.u.)) 1.5 1.3

Winding hot-spot temperature and metallic parts in contact with cellulose insulation material

140°C 120°C

Top oil temperature 105°C 105°C

Long-term emergency loadingLoadK(Current(p.u.)) 1.5 1.3

Hot-spot temperature and metallic parts in contact with cellulose insulation material

140°C 130°C


Short-term emergency loading

LoadK(Current(p.u.)) 1.8 1,5

Hot-spot temperature and metallic parts in contact with cellulose insulation material

160°C 160°C


NOTE: The temperature and current limits are not intended to be valid simultaneously. The current may be limited to a lower value than shown in order to meet the temperature limitation requirement. Conversely, the temperature may be limited to a lower value than shown in order to meet the current limitation requirement.



Forpowertransformerswith65ºCrise,accordingtoIEEEPC57.91-1995.

Types of loading Suggested maximum limits of loading

Normal life expectancy loading

Insulated conductor hot-spot temperature 120°C (110°Conacontinous24hbasis)

Othermetallichot-spottemperature (in contact and not in contact with insulation)

140°C

Top oil temperature 105°C

Planned loading beyond nameplate rating

Insulated conductor hot-spot temperature 130°C

Othermetallichot-spottemperature(incontactandnot in contact with insulation)

150°C


Long-term emergency loading



160°C


Short-term emergency loading



200°C


CAUTIONWhen hot-spot temperatures reach temperatures above 140-160ºC, it should be noted that gas bubbles might develop, which could jeopardize the dielectric strength of the transformer. (If there is moisture in the oil, the risk for bubble formation increases and the limits could even be lower.)

NOTE: There could be restrictions for components in the transformers at high loads or temperatures.

1ZSC000857-AAN en50


Appendix D Hot-spot calculation methodThe following formulas have been used in the calculation:

Increasing step:

tec_eq_001

Decreasing step:

tec_eq_002

In the formula, the following values for the winding with the highest hot-spot temperature are used:

Θh winding hot-spot temperature (°C)ΔΘo,start temperature rise of top oil in tank at start (K)Θa ambient temperature (°C)ΔΘor temperature rise of top oil in tank at rated losses (K)H hot-spot factorR load losses/no-load lossesK=Iload/Irated load current/rated currentX cooling capacity in percent (the complete cooling capacity available for the trans-

former that is used)xo oil exponentgr winding-to-oil temperature difference at rated load current (K)yw winding exponentΔgh-s,start hot-spot temperature rise above top-oil temperature in tank at start (K)τo averageoiltimeconstant(min.)



1ZS

C00

0857

-AA

N e

n, R

ev. 1

, 200

8-01

-30

ABB AB ComponentsVisitors: Lyviksvägen 10Post address: SE-771 80 Ludvika, SWEDENTel. +46 240 78 20 00Fax +46 240 121 57E-mail: [email protected]/electricalcomponents

Date post:	12-Nov-2020
Category:	Documents
Upload:	others
View:	2 times
Download:	0 times

Type TEC, Transformer Electronic Control System · 2018. 5. 10. · By default, the TEC system IP...

Documents