Typical Primary Plant - ElectraNet

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Typical Primary PlantDocument Number: 1-11-FR-33VERSION 1.0 June 2018

This functional requirements document is in line with the organisation's PrimaryPlant Asset Class StrategiesIntellectual property rights and disclaimerThis document is published in accordance with the requirements of Chapter 5 of the National ElectricityRules (NER). It is a functional requirement document only and is not intended to contain anycomprehensive or project specific designs, specifications or other information. Whilst care has been takento ensure that the contents of this document are accurate, ElectraNet Pty Limited (ElectraNet) does notrepresent or warrant that the information contained in this document is complete, accurate or adequate inany respect. ElectraNet reserves the right to amend this document at any time without notice to any person.The user must carefully examine and check the information contained in this document and carry out itsown independent technical and legal assessment and due diligence to ensure that the information in thisdocument is used appropriately and that in doing so, all requirements (including requirements at law) aresatisfied. For the avoidance of any doubt, the publication of this document does not limit or detract from theuser’s obligations at law, and does not and will not give rise to any claim (including, without limitation, incontract, tort, equity, under statute or otherwise) against ElectraNet or any of its ‘Associates’ (as that term isdefined in Corporations Act 2001 (Cth)).All intellectual property rights (including without limitation any copyright, patents, logos, designs, circuitlayouts, trademarks, moral rights and know how) in the whole and every part of this document are owned byor licenced to ElectraNet. Except as expressly provided in Chapter 5 of the NER or with the prior writtenconsent of ElectraNet, the contents of this document cannot be used, transferred, copied, modified orreproduced in whole or in part in any manner or form or in any media. ElectraNet Pty Limited. All rights reserved.

Typical Primary Plant l Document No: 1-11-FR-33Contents1. Purpose and Scope . 52. Legal and Regulatory Requirements . 63. Application . 74. Referenced Documents . 85. Environmental and Seismic Service Conditions . 106. All Equipment Electrical Requirements. 116.16.26.36.46.5System Voltage .11System Frequency .11Rated Insulation Level .11Design and Safety Clearances .11Current Ratings.127. All Equipment Design Requirements. 137.1General .137.2Documentation.137.3Operating Mechanisms .137.3.1Local Operating Point .137.3.2Remote / Manual / Local .137.4Auxiliary Switches .137.5Terminal Palms .147.6Design Life .147.7Enclosures and Terminals .147.8Auxiliary Supplies .147.9Bushings .157.10 Access to Hazardous Parts. .157.11 Plant Hazard and Identification. .157.12 SF6 as an Insulation Medium .157.13 Oil as an Insulation Medium .158. High Voltage Air Insulated Circuit Breakers . 168.18.28.38.48.58.68.78.88.98.10General Requirements.16Gas alarms .16Mechanism .16Shunt Releases .16Break Time .16Electrical Endurance .17Mechanical Endurance .17Re-strike Performance.17Auto Reclose .17TRV Requirements .179. High Voltage Air Insulated Disconnectors and Earthing Switches . 189.19.29.39.49.59.69.7General Requirements.18Mechanical Endurance of Disconnectors .18Electrical Endurance of Earthing Switches.18Manual and Motor Operation .18Motor Supply Isolation .18Interlocking .18Mechanical Locking .19Security Classification: PublicDate: June 2018Version: 1.0WHEN PRINTED THIS DOCUMENT IS UNCONTROLLED ElectraNet Pty Limited 2018 – all rights reservedPage 3 of 30

Typical Primary Plant l Document No: 1-11-FR-3310. High Voltage Air Insulated Current Transformers . 2010.110.210.310.410.5General Requirements.20Metering.20Dielectric Loss Angle Measurements Test Point .20Overvoltage Protection .20Testing .2111. High Voltage Air Insulated Voltage Transformers . 2211.111.211.311.411.511.6General Requirements.22Additional Requirements for Inductive Voltage Transformers .22Additional Requirements for Capacitor Voltage Transformers .22Metering.22Dielectric Loss Angle Measurements Test Point .22Testing .2312. High Voltage Air Insulated Surge Arresters . 2412.1General Requirements.2413. High Voltage Air Insulated Post Insulators . 2513.1General Requirements.25Security Classification: PublicDate: June 2018Version: 1.0WHEN PRINTED THIS DOCUMENT IS UNCONTROLLED ElectraNet Pty Limited 2018 – all rights reservedPage 4 of 30

Typical Primary Plant l Document No: 1-11-FR-331.Purpose and ScopeThis document describes the requirements for equipment connected directly tothe South Australian electrical transmission system operating at voltages of 275kV, 132 kV, 66 kV, and 33 kV. The principles of this document apply toequipment connected at other voltages.The requirements contained within this document may be modified on a sitespecific basis. However, unless such modifications are explicitly detailed andaccepted by ElectraNet the requirements of this document apply.Ratings are specified for equipment with nominal operating voltages of 33 kVand above. Deviations of the requirements for equipment operating at thesevoltages will be permitted only when it can be demonstrated that the proposedderogation will not be detrimental to the safety, operability, maintainability,constructability and reliability of the South Australian electricity transmissionsystem.Security Classification: PublicDate: June 2018Version: 1.0WHEN PRINTED THIS DOCUMENT IS UNCONTROLLED ElectraNet Pty Limited 2018 – all rights reservedPage 5 of 30

Typical Primary Plant l Document No: 1-11-FR-332.Legal and Regulatory RequirementsEquipment that is to be installed on the South Australian electrical transmissionsystem must be installed in accordance with all requirements of: The latest version of the National Electricity Rules; The South Australia Electricity Act 1996; The latest version of the Electricity Transmission Code.Security Classification: PublicDate: June 2018Version: 1.0WHEN PRINTED THIS DOCUMENT IS UNCONTROLLED ElectraNet Pty Limited 2018 – all rights reservedPage 6 of 30

Typical Primary Plant l Document No: 1-11-FR-333.ApplicationEquipment that is to be installed on the South Australian electrical transmissionsystem must be suitable for operation as required by the ElectraNet SwitchingManual.Equipment is to be installed in such a way that allows for operation andmaintenance personnel to work with and around the equipment in accordancewith the ElectraNet Asset Access Manual.Equipment is to be procured and installed in accordance with ElectraNet AssetDesign Manuals.Security Classification: PublicDate: June 2018Version: 1.0WHEN PRINTED THIS DOCUMENT IS UNCONTROLLED ElectraNet Pty Limited 2018 – all rights reservedPage 7 of 30

Typical Primary Plant l Document No: 1-11-FR-334.Referenced DocumentsThe table below lists applicable legislations, standards, referenced documents:LegislationNERNational Electricity RulesSAEASouth Australia Electricity Act 1996TC/08Electricity Transmission CodeStandardsAS/NZS 3000Australian and New Zealand wiring rulesAS 1170.2Structural design actions - Wind actionsAS 1170.4Structural design actions - Earthquake actions in AustraliaAS 1349Bourdon tube pressure and vacuum gaugesAS 2067Substations and high voltage installations exceeding 1 kVa.c.AS 4436Guide for the selection of insulators in respect of pollutedconditionsAS 62271.301AS 62271.301-2005 (R2016) : High voltage switchgear andcontrolgear - Dimensional standardization of terminalsIEC 60099-4Surge arresters - Part 4: Metal-oxide surge arresters withoutgaps for a.c. systemsIEC 60099-5Surge arresters - Part 5: Selection and applicationrecommendationsIEC 60099-6Surge arresters - Part 6: Surge arresters containing bothseries and parallel gapped structures - Rated 52 kV and lessIEC 60099-7Surge arresters - Part 7: Glossary of terms and definitionsfrom IEC publications 60099-1, 60099-4, 60099-6, 61643-1,61643-12, 61643-21, 61643-311, 61643-321, 61643-331 and61643-341IEC 60099-8Surge arresters - Part 8: Metal-oxide surge arresters withexternal series gap (EGLA) for overhead transmission anddistribution lines of a.c. systems above 1 kVIEC 60296Fluids for Electrotechnical applications - Unused mineralinsulating oils for transformers and switchgearIEC 60376Specification of technical grade sulphur hexafluoride (SF6)for use in electrical equipment.IEC 60529Degrees of protection provided by enclosures (IP Code)IEC/TS 60815-1Selection and dimensioning of high-voltage insulatorsintended for use in polluted conditions - Part 1: Definitions,information and general principlesSecurity Classification: PublicDate: June 2018Version: 1.0WHEN PRINTED THIS DOCUMENT IS UNCONTROLLED ElectraNet Pty Limited 2018 – all rights reservedPage 8 of 30

Typical Primary Plant l Document No: 1-11-FR-33IEC 61462Composite hollow insulators - Pressurized and unpressurizedinsulators for use in electrical equipment with rated voltagegreater than 1 000 V - Definitions, test methods, acceptancecriteria and design recommendationsIEC 61869-1Instrument Transformers - Part1: General RequirementsIEC 61869-2Instrument transformers - Part 2: Additional requirements forcurrent transformersIEC 61869-3Instrument transformers - Part 3: Additional requirements forinductive voltage transformersIEC 61869-5Instrument transformers - Part 5: Additional requirements forcapacitor voltage transformersIEC 61869-103Instrument transformers - The use of instrument transformersfor power quality measurementIEC 62271-1High Voltage AC Switchgear and Control Gear – CommonspecificationsIEC 62271-100High Voltage AC Switchgear and Controlgear – Part 100:High-voltage Alternating Current Circuit BreakersIEC 62271-102High voltage switchgear and controlgear - Alternating currentdisconnectors and earthing switchesISO 9223Corrosion of metals and alloys - Corrosivity of atmospheres Classification, determination and estimationSecurity Classification: PublicDate: June 2018Version: 1.0WHEN PRINTED THIS DOCUMENT IS UNCONTROLLED ElectraNet Pty Limited 2018 – all rights reservedPage 9 of 30

Typical Primary Plant l Document No: 1-11-FR-335.Environmental and Seismic Service ConditionsEquipment must be suitable for operation under the normal service conditionsdefined in Table 5-1 Outdoor Environmental and Seismic Service Conditions.Equipment installed outdoors must have a degree of protection of at least IP54as defined in IEC 60529.The pollution level must be III – Heavy as defined in AS 4436. For particularlocations which may be subject to severe coastal or industrial pollution thepollution level must be IV – Very heavy as defined in AS 4436.The corrosivity of the atmosphere must be category C3 (medium) as defined inISO 9223. For particular locations which may be subject to severe corrosion, thecategory must be C5 (very high).The structural design of equipment for wind loading must be in accordance withAS 1170.2.The structural design of equipment for seismic activity must be in accordancewith AS 1170.4.Table 5-1 Outdoor Environmental and Seismic Service ConditionsDescriptionUnitMaximum ambient temperature C55Maximum one hour average temperature C48Maximum twenty four hour average temperature C37Minimum ambient temperature C-5Maximum humidity%100Maximum average summer humidity%55Maximum average winter humidity%90Minimum humidity%15Maximum solar radiationkW/m21.1Maximum installed altitudemMaximum wind speedm/s46Seismic load hazard factorNo.0.14Seismic annual probability of exceedanceYearsSecurity Classification: PublicDate: June 2018Version: 1.0Value10001 in 1000WHEN PRINTED THIS DOCUMENT IS UNCONTROLLED ElectraNet Pty Limited 2018 – all rights reservedPage 10 of 30

Typical Primary Plant l Document No: 1-11-FR-336.All Equipment Electrical Requirements6.1System VoltageEquipment must satisfy its function and performance requirements over therange of primary voltages given in Table 6-1 System Voltage.Table 6-1 System Voltage6.2Nominal system voltage(kV)Rated voltage of equipment(kV)33366672.5132145275300System FrequencyEquipment must satisfy its function and performance requirements over therange of frequencies given in Table 6-2 System Frequency.Table 6-2 System FrequencyUnit6.3ValueNominal frequencyHz50Maximum continuous frequencyHz50.5Minimum continuous frequencyHz47.5Rated Insulation LevelThe rated insulation values must be in accordance with table 3.1 of AS 2067.The values selected from table 3.1 of AS 2067 must be in accordance with Table6-3 Rated Insulation Level.Table 6-3 Rated Insulation Level6.4RatedRated short durationvoltage power frequencywithstand voltage(kV)(kV)Rated lighteningimpulse withstandvoltage(kV peak)Rated switchingimpulse voltage,phase to earth(kV peak)3670200No Rating72.5140325No Rating145275650No Rating3004601050850Design and Safety ClearancesThe design and safety clearances must be in accordance with table 3.1 of AS2067. The relevant values are included in Table 6-4 Safety Clearances.Security Classification: PublicDate: June 2018Version: 1.0WHEN PRINTED THIS DOCUMENT IS UNCONTROLLED ElectraNet Pty Limited 2018 – all rights reservedPage 11 of 30

Typical Primary Plant l Document No: 1-11-FR-33Table 6-4 Safety 3514514951430244038703003100254524404985*At 36 kV the section clearance is higher than the value specified in table 3.1 ofAS 2067.6.5Current RatingsEquipment must be suitable for operation under the conditions detailed in Table6-5 Current Ratings. The determination as to whether a substation is highcapacity or low capacity is made after the completion of power flow studies.Table 6-5 Current RatingsRatedSubstationvoltage ent(A)Faultlevel(kA)Faultduration(s)X/RRatio36All types2500400031.512072.5All 400040114Lowcapacity(4)1200250015114(1) The maximum current rating has been determined on the same assumptionsas for the 275 kV sites with the ratings adjusted to match the current ratingsof the 132 kV feeders.(2) The same principles as per the 275 kV low capacity apply.(3) The maximum current rating is based on a 1 ½ circuit breaker

IEC 61869-5 Instrument transformers - Part 5: Additional requirements for capacitor voltage transformers IEC 61869-103 Instrument transformers - The use of instrument transformers for power quality measurement IEC 62271-1 High Volta

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