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Aegis ring main unit
providing intelligent solutions
To find out more about us, visit:
www.lucyswitchgear.com
DisclaimerLucy Switchgear has a policy of continuous research and development and accordingly reserves the right to change the design and specification of its products without prior notice.
LSAEG0214
Lucy Middle East FZEPO Box 17335, Jebel Ali, Dubai, United Arab Emirates Tel: +97 148 129 999Fax: +97 148 129 900 Email: [email protected]
Lucy Switchgear Ltd. Howland Road, Thame, Oxfordshire,OX9 3UJ, United Kingdom Tel: +44 1844 267 267 GeneralTel: +44 1844 267 222 SalesFax: +44 1844 267 223 Email: [email protected]
Lucy Switchgear worldwide offices
Lucy Asia Pacific Sdn BhdL13A-03-03A, PJX-HM Shah Tower,No16A Jalan Persiaran Barat,46050 Petaling Jaya, Selangor, Malaysia Tel: +603 74910700Fax: +603 79316923Email: [email protected]
Lucy Electric (Beijing) Co. Ltd.卢西电器(北京)有限公司北京市朝阳区东三环北路霞光里18号佳程广场A座1122室邮编:100027电话:+86 1059 231 176传真:+86 1059 231 177电子邮件:[email protected]
Lucy Switchgear Arabia Co. Ltd.Novotel Business Centre,P.O. Box 35340, Dammam 31488,Saudi ArabiaTel: +966 3 8147 910Fax: +966 3 8147 914Email: [email protected]
Lucy Switchgear (South Africa)Unit 2, Cranberry Industrial Park, Cranberry StreetLaser Park, Honeydew, 2170, South AfricaTel: +27 11 025 7490Fax: +27 11 794 3277Email: [email protected]
Postal Address:P.O. Box 1078, Honeydew, 2040
Page 3
To find out more about us, visit:
www.lucyswitchgear.com
• Costeffective
• Safe
• Maintenancefree
• Simpleoperation
• Easytoinstall
• Climateindependent
• Automationready
ContentsWhyAegis?
Introduction to Lucy Switchgear 4
Product panorama: Lucy medium voltage and high voltage range 5
Introduction to Aegis 6
Installation and operating conditions 7
Safety features 8
Application examples 9
Aegis range presentation 10
Available configuration 12
Standards 12
Product characteristics 13
General 13
Product presentation
User interface and interlocking mechanism
L: LBS Load Break Switch 14
Standard features
Optional features, factory fitted
Optional features also available as retrofit
Circuit Breaker; T or V modules 15
Standard features
Optional features, factory fitted
Optional features also available as retrofit
Circuit breaker protection 16
TLF
Protection relays
ProtectionCT(Currenttransformers)forTLFandrelays
Options and accessories 19
Secondary injection
Actuators(motorised)
Cablecompartment
Shunt trip coils
EarthFaultIndicators(EFI)
Air metering unit 20
Switchgear automation 21
Cable bushings and cable terminations 22
Technical data sheet 23
Dimensions 24
Order form 26
Page 5 Page 4
Lucy Switchgear is a global leader in switching, protection and automation solutions for electrical distribution systems, with over 100 years’ industry experience. Today the company is a specialist in secondary power distribution, engineering high-performance medium voltage switchgear for utility, industrial and commercial applications, overhead line equipment and providing retrofit and automation solutions to customers internationally. Engineeringexcellence,basedonalongtraditionofexpertise,coupled with state of the art technology to meet customers’ stringent specifications, make Lucy Switchgear one of the few companies that can offer truly bespoke solutions. We have the capability to manufacture units for any location, climate or situation
and offers a complete product portfolio, with a wide scope of services and dedicated after sales support throughout the product lifecycle.
AspecialistUKresearchanddevelopmentfacility,withacontinuousprogramme of R&D, ensures that Lucy Switchgear’s products are always at the cutting edge, designed to anticipate the evolving technicalandmarketdemandsofourcustomers.Andourmulti-millionpound,purposebuilt,stateoftheartUKmanufacturing facility provides complete control over production.
Lucy Switchgear is a truly international company with offices in China,Dubai,MalaysiaandSouthAfrica;manufacturingfacilitiesintheUnitedArabEmirates,SaudiArabiaandIndia;andanestablishedglobal network of industrial partners and contractors operating in over 50 countries worldwide.
Aegis
1965 1970 1975 1980 1985 1990 1995 2000 2005 2010 2015
Scimitar
Trident
Ring main unit range evolution
Sabre
IntroductiontoLucySwitchgear Product panorama: Lucy medium voltage and high voltage range
Switch disconnectors
Ratedvoltage(up to)
Mode offault current interruption
Insulationmedium
Ratedcurrent(up to)
Mounting Installationcondition Operation
24kV Vacuum SF6 630AGround /
TransformerIndoor /Outdoor
Local /RemoteAegis
24kV Vacuum SF6 630AGround /
TransformerIndoor /Outdoor
Local /RemoteSabre
36kV - Air 800A Pole OutdoorLocal /RemoteRapier AX
38V - SF6 630A Pole OutdoorLocal /RemoteRapier GX
15.5kV Fuse Oil 630AGround /
TransformerIndoor /Outdoor
Local /RemoteTrident
17.5kV Fuse SF6 630AGround /
TransformerIndoor /Outdoor
Local /RemoteScimitar
145kV - Air 2500A Structure OutdoorLocal /RemoteRapier DSB
Ring main units
Page 7 Page 6
IP54 Outdoor metal clad non extensible units only
Temperature De-rating Curves
700
650
600
550
500
450
40 45 50
Ambient Temperature ° C
Rat
ed C
urr
ent
(Am
ps)
55 60 65
400
350
300
630A at 40°C
i. Indoorandoutdoortypeunits
ii. Ambienttemperatureforoperationwithoutderating:40°C(forhighertemperatureapplicationspleaserefertotemperaturederatingcurvebelow)
iii. Averagevalueover24hoursmax:40°C
iv. Maximumaltitudeforoperationwithoutderating: 1000m(abovesealevel)*
v. Insulationmedium:SF6Gas
vi. Ratedpressureat+20°C:0.03MPa
vii. Interruptionmedium:vacuum
* Forhigheraltitudeapplicationspleasecontactlocal Lucy Switchgear sales office.
IP41 Indoor extensible and non extensible
Aegis is a new generation of Ring Main Units mainly designed for secondary distribution networks up to 24kV. This range is available in indoor and outdoor formats to suit various application needs. All the live parts and switching functions are insulated with SF6 gas and sealed in a stainless steel tank ensuring a high level of reliability, personnel safety and virtually maintenance free operation.
The structural tank welding is performed by a robotic welding processensuringhighreliabilitywithaproductlifeexpectancyofmorethan30years.Thehousingisfullytreatedusingzinccoatedsteel and electro statically applied, oven cured paint to resist degradation from pollution and harsh climatic conditions. ThetransformerprotectionisbyVacuumCircuitBreaker.Onrequest, the units can be supplied with integrated automation for remote monitoring and control functions.
Characteristics:
• 12kV,17.5kVand24kVratings
• Extensibleandnonextensiblerangewithupto
4 switching functions in a single tank
• Hermeticallysealedstainlesssteeltankinsensitive
to environment
• Intuitivesinglelinemimicdiagramforsimpleand
safe operation
• VacuumCircuitBreakerenclosedinanSF6insulatedtank
forextraprotectionagainstcorrosionandpollution
• Provisionformotoractuatorsforremoteoperation and control
• Integratedcabletestingfacilityonfrontface eliminating the need for cable disconnection
• Suitableforindoorandoutdoorapplications
• Variousprotectionoptions(TLF,relays)tosuit customer needs
• Lowroofheightdesignedforkiosksand
mini substations
• EasyintegrationwithSCADAnetworkforremote operation and control
• StandardRAL7032paintfinishwithothercolours available on request
IntroductiontoAegis Installationandoperatingconditions
Page 9 Page 8
Operation mechanism The mechanism consists of one operating shaft and one selector. The operatingshaftisusedforswitchingON/OFF(MainsorEarth)andtheselectorisusedforselectionoftheMainsorEarthpositions.ItisimpossibletosimultaneouslyclosetheLoadBreakSwitchorCircuitBreakerandtheEarthswitch.
The mechanism incorporates mechanical interlocks and padlocking facilities to improve operator safety.
Anti reflex mechanism:Ensuresatimedelaybetweenswitchingoperationstoallowsufficient time for the main breaker to trip and clear a fault.
Internal Arc withstandAegisSF6Gasinsulatedstainlesssteeltanksarefullyinternalarcrated and this feature is also available on the cable compartment (optional)toensuremaximumoperatorsafetyintheeventofinternalfaults.Asstandard,allthetanksareratedforAF(operatorsafetyfromthefrontoftheunit)andthereisanoptiontorequestforAFL(frontandside)andAFLR(front,sideandbackoftheunit).
FormoredetailsonIACratings,pleaserefertothetechnicaldatasheet on page 20.
Pfisterer sockets Neon indicator with push-to-test buttons
Safety features
Earth and test facilityThe cable earth and test facility is an optional feature on the Load BreakSwitchandtheCircuitBreaker.Itislocatedatthefrontoftheunitforeaseofaccess.Itisusedfortestingcableinsulationand to locate faults in the circuit without the need to remove the main cables from the cable compartment, which improves the operator safety.
The cable test access cover is fully interlocked and cannot be opened untiltheLoadBreakSwitchorCircuitBreakerSwitchisinEarthONposition. The test bushings are earthed with a star bar which has to be removed for cable tests.
Earth bar in cable compartmentAfullyratedcopperearthbarismountedinsidethecablecompartment. This earth bar is used to connect the screened cable connectorsthroughM12sizebolts.Thebarrunsthroughthewidth of the unit and protrudes 125mm to the rear of the cable compartment or connection to the main earthing system. For additional safety it is not possible to remove it while unit is live.
VPISVPIS(VoltagePresenceIndicationSystem)isanoptionalfeatureintheAegisrange.Itisusedforcheckingthepresenceofvoltagesinthecables.TheVPISgetsavoltagesignalthroughthevoltagedividerbuilt into the cable bushings. They can also be fitted with neon lights and momentary latching push buttons to show voltage presence withoutneedingexternaltestingprobes.
Two types of voltage presence indication device are offered:
• Pfisterersockets
• Neonindicatorswithpush-to-testbuttonsandphasecomparator sockets
Cable compartmentThe cable compartments are located at the front of the units with horizontalmountedDIN400typeCbushingsforeaseofcableconnection.VacuumCircuitBreakerfunctionhasfactorymountedprotectionCT(currenttransformers)onthecablebushingsforeaseofinstallationandtoavoidanypotentialdamagetoCTduringtransit and connections.
For enhanced operator safety, the cable compartments are earthed and fully interlocked allowing access to the operator only if the functionisinEarthONposition.
There is an option of supplying these cable compartments with InternalArcratingasperIECstandards.
The key areas of application are:
Energyi. Generation:windpower,solarpowerii. Distribution: compact substations
Infrastructure:tunnels,airports,ports,underground railway stations
Commercialbuildings:hospitals, shopping centres, hotels, office buildings, data centres
Industries:waterandwastewater,mining, minerals, automotive, iron and steel, paper and pulp, cement and petroleum
Applicationexamples
Page 11 Page 10
Non extensible: (12kV/15.5kV, 17.5kV and 24kV)Thisrangehas3and4functionsinsulatedbySF6gasinasinglehermetically sealed stainless steel tank. This solution is available in indoor(IP41)andoutdoor(IP54)versionsandisperfectlysuitablefor integration into compact substations to form standard ring main secondary networks with transformer protection.
Extensible: (12kV/15.5kV only)Theextensiblerangeisusedtoaddanotherfunctionontheleft,right or both sides of switchgear installed in secondary networks. Thisrangehas1,2,3and4functionsinsulatedbySF6gasinasinglehermeticallysealedstainlesssteeltank.Itisanidealsolutionifadditional functions are needed in the present or foreseeable future. Availableinindoor(IP41),theseunitscanbeeasilyextendedinanycombination on site without specific tooling or floor preparation, and without the need to transfer SF6 gas.
Theunitsareextendedasshowninthesediagrams:
Functions available:SW: Switching functions: L:LBS - 12kV/15.5kV:630A - 17.5kV:400A - 24kV:400A
CB: Circuit breaker functions: V:VCB - 12kV/15.5kV:630A T:VCB - 12kV/15.5kV:250A - 17.5kV:250A - 24kV:400A
Metering functions: M1:Busbarmetering - 17.5kV:630A
TheAegisrangeisavailableinfourconfigurations,rangingfrom1functionto4functions,asshownbelow.
Aegisrangepresentation
1-function 2-functions 3-functions
4-functions
Extension bushings
Busbar extension system
Page 13 Page 12
International StandardsIEC62271-1IEC62271-100IEC62271-102IEC62271-103IEC62271-200
Alloftheextensibleunitsareavailableinthefollowingextensibilityfunctions:
• Lefthand
• Righthand
• Bothsides
Availableconfiguration
Standards
Positions of the functions in the unit
Types of functions
1st 2nd 3rd 4th
L L L L
T T T T
V V V V
3functionsunit
4 functions unit
Positions of the functions in the unit
Types of functions
1st 2nd 3rd 4th
L L L L
T T T T
V V V V
1 function unit
2 functions unit
3functionsunit
4 functions unit
Product presentationNon extensible (compact range) Extensible range
Load Break Switch
1 EFI
2 Pressure indicator
3 MarshallingBox
4 OptionalVPIS
5 EarthandTestFacility
6 Protection Relay
7 'PushToTrip'Button
8 CircuitBreakerIndication
9 InterlockedCableBoxCover
10 DisconnectorIndication
11 CableTestandCableBoxInterlock
12 DisconnectorOperationCollar
13 OperationCollar
14 SwitchIndication
15 OperatingHandle
Circuit Breaker
User interface and interlocking mechanism
Safety interlockingEachLBSandVCBmodulehassafetyinterlockedaccessviaarotaryknobonthefasciatoenableaccesstothecableconnectioncompartmentandalsothecabletestaccesspanel(ifspecifiedasanoption)locatedonthefascia.
Operating handle access shafts have the facility for individual padlocks.
Position
LoadBreakSwitch
ON
OFF
OFF
EarthON
Cablecompartment
interlock
Locked
Locked
Locked
Unlocked
Selector
Main
Main
Earth
Earth
Earth&Testinterlock(iffitted)
Locked
Locked
Locked
Unlocked
Interlock status Position
CircuitBreaker
ON
OFF(Tripped)
OFF(Reset)
EarthON
EarthON
OFF(Tripped)
Cablecompartment
interlock
Locked
Locked
Locked
Unlocked
Locked
Locked
Selector
Main
Main
Earth
Earth
Earth
Earth
Earth&Testinterlock(iffitted)
Locked
Locked
Locked
Unlocked
Locked
Locked
Interlock status
1 23
4
5 6
7
8
9
10
11
121314
15
Product characteristicsGeneral
Page 15 Page 14
Standard features• Threepositions(ON,OFF&Earth),springloadedmechanism,
independent manual operation
• Singlemechanismwithtwoindependentoperatingshafts,oneforswitchON/OFFpositionandanotherforselectinginMainsandEarthoperation
• Interlockedselector,lockedfromoperationwhen switch is in ON position
• Singlelineintuitivemimicdiagramwithclearindicationtoshowthestatusofswitch(ON,OFForEarthpositions)
• GaspressureindicatorwithRedandGreensectorstoindicateminimumpermissiblepressureforsafeoperation(onlyonepertank)
• HorizontalcableterminationsinfrontwithDIN400 typeCbushings
• Fullyinterlockedcablecompartmentallowingentry onlyiffunctionisinEarthONposition
• Padlockfacility(8.5mmdiameterhole)forallthe
operating positions
Optional features, factory fitted• Internalarcratingofcablecompartmentfor
additional safety
• Remotelowgaspressurealarm,1N/O(onlyonepertank)
• VPIS–VoltagePresenceIndicationSystem
• Remoteswitchpositionindicator
(1N/O,1N/Cand2N/O,2NC)
• Fullyinterlockedcableearthandtest(E&T)facility without removing main cable connections
• ShortcircuitandEarthFaultCurrentIndicators(EFI)
• Wiringformotorisation
Optional features also available as retrofit• MotoroperationforLoadBreakSwitch(onlyifunitisprewired
formotorisation)
• Widerangeofcableclamps,andglandstoaccommodate1and3corecables(refertocablecompartmentsectiononpage17forfurtherinformation)
Product characteristics Circuit breaker: T or V modules
Product characteristicsSwitching functions L: LBS load break switch
T module 250A and 400A rated vacuum circuit breakers for transformer protection.
V module: 630A rated vacuum circuit breaker for transformer / downstream network protection.
Standard features• Threefunctions(ON,OFF&Earth),twopositionspringloaded
mechanism, independent manual operation
• Singlemechanismwithtwoindependentoperatingshafts,onefor circuit breaker ON/OFF position and another for selecting disconnectorinMainsorEarth(isolation)
• Interlockeddisconnectorselector,lockedfrom operation when circuit breaker is in ON position
• Mechanicalpush-to-tripbuttonforlocaloperation
• TripcoilforreceivingtrippingsignalfromrelayorTLFdevices
• ProtectionfunctionTLForrelay(customerspecific)
• Singlelineintuitivemimicdiagramwithclearindicationtoshowthestatusofswitch(ON,OFForEarthpositions)
• GaspressureindicatorwithRedandGreensectorstoindicateminimumpermissiblepressureforsafeoperation(onlyonepertank)
• HorizontalcableterminationsatfrontofunitwithDIN400Ctype bushings
• ProtectionCT(currenttransformers)mountedon cablebushings(customerspecific)
• Fullyinterlockedcablecompartmentallowingentry onlyiffunctionisinEarthONposition
• Padlockfacility(8.5mmdiameterhole)forallthe
operating positions
Optional features, factory fitted• Internalarcratingofcablecompartmentforadditionalsafety
• Remotelowgaspressurealarm,1N/O(onlyonepertank)
• VPIS–VoltagePresenceIndicationSystem
• Remotecircuitbreakerpositionindicator (1N/O,1N/Cand2N/O,2NC)
• Fullyinterlockedcabletestfacilitywithouttheneedtoremovemaincableconnections(refertocabletestfacilityforfurtherinformation)
• Self-poweredrelayforprotection(customerspecific)
• TLF(TimeLimitFuses)foralternativeprotection
• WiderangeofCurrenttransformersforTLFandRelayprotection
• Shunttripcoilsforexternaltripping
• Wiringformotorisation
Optional features also available as retrofit• MotoroperationforCB(onlyifunitisprewired
formotorisation)
• Widerangeofcableclamps,andglandstoaccommodate1and3corecables(refertocablecompartmentsectiononpage17forfurtherinformation)
Page 17 Page 16
Two types of protection devices are offered to protect the circuit breaker;
TLF : Time limit fuses
Protection relays
TLF When utilised in conjunction with circuit breaker type ring main units,timelimitfuses(TLF)areacosteffectivemethodofprovidingfaultprotectionforovercurrentandearthfaults(optional)toatransformerof2000kVAorless.ItisarecognisedmethodofprotectionandwasdevelopedtocomplywithEA41-26(nowsupersededbyENATS41-36)withfuselinksinaccordancewithENATS12-6.
ItshouldbenotedthattheTLFprotectionsystemisnotadeviceforlimitingoverloadlevelsofindividualtransformers.Itshouldbeusedfor fault protection only.
The TLF system provides protection for overcurrent and earth faultsbetweentheMVcircuitbreakerandtheLVprotectiondevice. The selected TLF rating should be such that it allows for discriminationbetweentheMV&LVdevices.Thiswillensurethat the circuit breaker does not open for faults beyond the LV distributorprotection device.
When fitted with TLF, the ring main unit can also be configured to enable tripping of the circuit breaker from remote devices (Bukholtz,LVCBetc).
LucySwitchgearcustomersinEurope,theMiddleEast,AfricaandAsiaarecurrentlyusingTLFprotectionsystemwithintheirdistribution networks.
Fuse dimensions: Length 57mm x Diameter 13mm
LV distributionPanel
RMU
TLF
Transformer
Product characteristics Circuit breaker protection
Recommended TLF settings
Advantage of vacuum circuit breaker with TLF over HV fuses
*NoissueswithtransfercurrentswitchingtoIEC62271-105,whichminimizestheMVArating
Advantage of vacuum circuit breaker with TLF over protection relays
Transformer ratings (kVA)
200 315 500 800 1000 1250 1600 2000
Rated voltage (kV) TLF fuse rating (A)
CT ratio
50/5
Earth fault setting =25A
(instantaneous trip)
3.3 10A
6.6 5A 10A 15A
11 3A 5A 10A 15A
13.8 3A 5A 10A 15A
24 3A 5A 7.5A
CT ratio
100/5
Earth fault setting =30A
(instantaneous trip)
3.3 5A 10A 15A
6.6 5A 7.5A 12.5A 15A
11 5A 7.5A 10A 12.5A 15A
13.8 5A 7.5A 10A 12.5A 15A
24 5A 5A 7.5A
Feature VCB with TLF Fuse switch
Overall cost of units Similar
Approximatefusereplacementcost $5 $50
Maximumratingoftransformer,canbeprotected 2MVA* 1MVA
Maximumratednormalcurrent 630A 200A
Physicalsizeoffuses Small Large
Possibility of some pollution while changing fuses causing PD and flash over issues No Yes
Fuse location inside the unit LV side HVside
Range of fuses required for different rated transformers VerysmallwithmultiratioCT Large
Feature VCB with TLF Protection relay
Installationcostoffunction Low High
Auxiliarypowersourceforoperation Not required Asrequired
Delay in activation of trip function due to capacitor charging time lag Not delay Delay
Employeetrainingonsettingtrippingcurves Not required Required
Additionaltrainingondifferentmanufacturersettingupprocedure Not required Required
Maintenanceandrepaircost Low High
Operating temperature limitations None Upto70°C
Range of fuses required for different rated transformers Yes Yes
Over current and earth fault protection Yes Yes
Page 19 Page 18
Protection relays TheAegisrangecanbefittedwithself-poweredrelaysforprotectingthe transformer or downstream network from fault currents by trippingtheCircuitBreaker.Theserelaysincorporatemanyadvancedfeatures and have a variety of settings to provide discrimination protection in networks. The self-powered feature eliminates reliance onexternalpowersourcesandincreasestheperformanceandreliability of the protection function.
TotherightarethetechnicalcharacteristicsoftheWoodwardWIP1relay,offeredasastandardontheAegisrange(iforderedwithrelayfunction).Othermanufacturers’relayscanalsobeincorporatedintothe units on request.
Other manufacturers’ relays are also available on request, please contact our local sales office for more information.
Key •Standard O Option
Protection CT (current transformers) for TLF and relaysTheprotectionCTareusedinconjunctionwithRelaysorTLFprotectiontoprotectawide(kVA)rangeofdistributiontransformers.AcomprehensiverangeofCT(currenttransformers)isavailable to suit varied application requirements.
DualRatioCT100/50/-
DualRatioCT200:100/-
TripleRatioCT150:100:50/-
AnextensiverangeofadditionalCT’sareavailableonrequest,pleasecontact our local sales office for more information.
Manufacturer Woodward
Range WIP1
Functions
Phase overcurrent •
Short circuit protection •
Number of overcurrent elements 2
Earthovercurrent •
Number of earth overcurrent elements 2
Characteristics
Display(measuringvaluesandparameters) •
Setting via buttons •
StandardCT 1A
LEDpickup •
LEDtripindicator •
Flag indication output •
Fault memory •
Clock •
Password protection •
Electroimpulseandrelaycontactoutput •
Number of output relays 3C/O
Inputremotetripping •
Interface O
RS 485 interface with pro open data protocol O
RS-485interfacewithModbusprotocol O
Additionalpowersupply O
Product characteristics Circuit breaker protection
Product characteristics Options and accessories
Secondary injection Secondary injection is used to test the relays or TLF operation withoutswitchingonthehighvoltagesupplytotheunit.AlowvoltageisappliedtothesecondarysideoftheCTconnection(locatedinterminalbox)totesttheoperationoftheprotectiondevices at the time of commissioning and routine tests.
Actuators (motorised)Aegisunitsarefittedwith24VDCmotors, which can be powered from theGeminiremoteterminalunit(RTU)24VDCbatteryintheeventofmains ACsupplyfailure.
Cable compartment Allthecableclamps,glandsandcablecompartmentsealingdevicesareavailableasretrofitoptions.Belowisthelistofclampsavailableinmetal(steel)andplastics.
• Single3corecable
• 3singlecorecables
Anextensiverangeofadditionalcable compartment clamps and sealing devices are available on request, please contact our local sales office for more information.
3 single core cableSingle 3 core cable
Shunt trip coilsShunt trips are magnetic coils and are used to trip circuit breakers through local push buttons, RTUs or additional transformer protection devices. Shunt trips are available in the followingvoltages;
• DCvoltage:12V,24V,48Vand110V
• ACvoltages:110V,240V
• Multiplevoltagerange:24VDC–240VAC
Earthfault indicators (EFI)Earthfaultindicators(EFI)areusedforrapidlocationandisolationof faults on medium voltage networks in open loop ring main networks. When the unit detects asymmetrical currents greater than 50Ainthe3phasecableanearthfaultisindicatedbymeansofaflashingLEDormechanicalflag.
BelowisthelistofEFIsavailablefortheAegisrange.
Key•Standard O Option Other manufacturers’ EFIs are also available on request, please contact our local sales office for more information.
Manufacturer model: Suparule Sensorform BLZ-50 BFZ-50 MFZ-50 MLZ-50 CFZ-50 CLZ-50
Features
Power source 3.6V lithium ½ AA 850mAH battery 110-240V a.c. CT on current carrying phase
Voltage range 1 – 38kV
Trip current 50A
Primary indication LED Mech-flag (RED) LED Mech-flag (RED) LED
Flashing duration >1000 hrs - - 10 hrs - 10 hrs
Minimum fault duration 2.5 cycles
Manual reset Push button
Automatic timer reset 4 or 8 hrs selectable 10 secs after mains restore
Manual trip test Push button
Operating temperature -40°C to +80°C
Operating humidity 0-100% RH
Ingress protection IP65
Current sensor diameter: CT100: 100mm • • • • • •
CT150: 150mm O O O O O O
CT300: 300mm O O O O O O
Remote flashing LED indicator O O O O O O
Auxiliary relay, 1N/O latching O O O O O O
Page 21 Page 20
Airmeteringunit
AMU features• Busbarmeteringwithextensibilityonbothsides
• 17.5kVand630Arating
• Ratedlightingimpulsevoltage(BIL)95kV
• Powerfrequencyvoltage38kV
• IP41forindoorinstallation
• DIN400typeCbushingsforbusbarconnection
• 20kA1-3secIACrating
• Ambientoperationtemperature-25̊ Cto40̊ C
• HVfuseprotectionforVT
• Anti-condensationspaceheater(option)
• WiderangeofCTandVT
AMU low voltage compartment• Facilitytolockandsealtheterminal(marshaling)box
• ProvisiontodisconnectandshortcircuittheCTs
• DIN96sizeKWHmeter,ammeterandvoltmeters
• MCB/fuseprotectionforVTsecondaryside
Busbar metering
Air metering unit
The Gemini RTU is an advanced, highly flexible and ultra-efficient solution for remote operation and control of electrical distribution networks. Enclosed in a stainless steel casing for maximum protection, the Gemini RTU is designed to operate in the most demanding environments.
The key features of the Gemini range are:• Embeddedautochangeoverandautosectionalisingfunctions
• Controlandmonitoringofupto4motorisedfunctions(switchesorcircuitbreakers)
• Inbuiltearthandfaultpassageindicators
• Advancedmonitoringofcurrent,voltage,batterycondition,temperature compensation, switching status, automatic cooling system, gas pressure etc
• Flexiblecommunicationthroughradio,RS232,RS485,packetdatanetwork,GSM,GPRS,PSTN,Bluetooth,ethernetTCP/IP,opticalfibreandSMSmessaging
• AdvancedbatterybacktooperateundermainsACinputfailure
• FullytestedtoENATS(EnergyNetworkAssociationTechnicalStandards),EMCandenvironmentalstandards
Switchgear automation
In addition to the features opposite, remotely monitored and controlled switchgear provides significant benefits to customers such as:• Reducedtimeindiagnosingsystemanomaliesaswell
as locating and isolating faulty sections of network
• Fasterresponsetimeandquicknetworkreconfiguration
• Optimisationofassetmanagementthroughtheimplementationof customised automation schemes
• Reducedoperationalcostassociatedwithroutinenetwork switching
• Increasedoperatorsafety
Gemini RTU specification
General Enclosure Stainless steelDegree of protection IP54Operating temperature -25 to 60°CRelative humidity Up to 95%Method of mounting Floor, wall, pole or RMU switchgearDimensions H 600mm, W 400mm, D 210mm
RTU hardware Processor module ARM9 microprocessorPower supply 110 / 230V AC supply – over and under-voltage protectionBattery type 2 x 12V DC, sealed lead acid or high temperature NiMHBattery charger Temperature compensated, fully protectedControl electronics PIC based processor with expandable I2C busInner enclosure Stainless steelVentilation Microprocessor controlled, long life fan with baffle air intake filter
Inputs / outputs Digital inputs 14 isolated digital inputs – expandableDigital outputs 8 isolated digital outputs – expandableAnalogue inputs 3 CT analogue inputs as standard (DIs reduced to 11)Expansion I/O module 3 AIs / 4 DIs; 7 DIs / 2 DOs
Communications Communication interfaces 3 RS-232 for control (ethernet option), configuration and programming plus one expansion busProtocols DNP3, IEC 60870-5-101/104 and modbus (others on request)
Communication mediaRS-232 / 485, UHF / VHF radio, packet data, GSM / GPRS / EDGE, PTSN, leased or twisted pair lines, optical fibre, ethernet (TCP/IP) and Bluetooth
Switchgear interface ControlsMembrane push-button for open / close operations in conjunction with activate push-button up to four switching functions (standard 1, 2, 3 or 4 switch control formats)Selector control for off, local or remote modes
Indications
RTU services such as DC / AC supplies, dummy control and debug LEDsSwitch status LEDs for open / closed positionsControl Output LEDs (illuminates when active)Configurable LED indications
Software Cables Plug-in, multi-core umbilicals to switchgearConfiguration Windows-based software
for configuration of:• Protocol parameters including device and I/O addresses• Parameters for the communications device• Parameters for digital, analogue and counter points• Automation sequences• Power saving routines• Battery tests
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The bushings for each ring switch and circuit breakers are located at the front of the unit. All sets of bushings are type ‘C’ with in-line bolted connections M16 threaded in accordance with
EN50181.The bushings are accessible by removing the interlocked cable compartment covers at the front of the unit.
Themaximumcablesizethatcanbeusedis:
• 300mm²3-core
• 500mm²single-core.
ThefollowingtypesofterminationscanbeusedwiththeAegis:
Insulatingbushingboot Heatshrinkinsulatingbushingboot
Profile'C'boltedseparable
Cablebushingsandcableterminations
General
Rated voltage kV 12/15.5 17.5 24
Rated frequency Hz 50 60 50
Rated lightning impulse withstand voltage
Directly earthed kV 95 95 125
Across disconnector kV 110 110 145
Rated power frequency withstand voltage
Directly earthed kV 38 38 50
Across disconnector kV 45 45 60
Protection
Tank with HV parts IP IP67
LV control box IP IP41
Front face + mechanism IP IP41
Cable box IP IP41
Mechanical impact protection IK IK07
Internal arc rating
Freestanding kA 1 sec 21kA 1 Sec
Optional cable box kA 1 sec 21kA 1 Sec
AF (gas chamber) Standard
AFL (gas chamber) Optional
AFLR (gas chamber) Optional
SF6 gas
Filled pressure Bar (G) 0.4 0.4 0.5
Across disconnector Bar (G) 0 0 0.3
Annual leakage rate ≥0.01% per annum
Installation conditions
Ambient air temperature (without derating) °C 40 55 55
Maximum altitude (without derating)* M 1000
Relative humidity (max) - over period of 24hrs (IEC 62271-1, sub-clause 2.1)
95%
BusBarsRated normal current A 630 400 400
Rated short time withstand current
1 sec kA - 21 -
3 sec kA 20 - 20
Rated peak withstand current kA 50 54.6 50
Load break switch: L functionRated normal current A 630 400 400
Rated active load breaking current A 630 400 400
Rated short circuit making current kA 50 54.6 50
Rated cable charging breaking current A 10 10 16
Rated short time withstand current
Main electrical circuit
1 sec kA - 21 -
3 sec kA 20 - 20
Earthing circuit
1 sec kA - 21 -
3 sec kA 20 - 20
Mechanical endurance class
Load break switch M2/5000 M2/5000 M2/5000
Earth switch M0/1000 M0/1000 M0/1000
Electrical endurance class short circuit making
Load break switchE3-5
(times)E1-2
(times)E1-2
(times)
Earth switchE3-5
(times)E1-2
(times)E1-2
(times)
Operating mechanism
Local: close / open Hand Lever
Remote: close / open Motor
Circuit breaker V and T functionRated normal current
V function A 630 - -
T function A 250 250 400
Rated active load breaking current A 630 250 400
Rated short circuit breaking current kA 20 21 20
Rated short circuit making current kA 50 54.6 50
Rated cable charging breaking current A 25 31.5 31.5
Rated short time withstand current
Main electrical circuit
1 sec kA - 21 -
3 sec kA 20 - 20
Earthing circuit
1 sec kA - 21 -
3 sec kA 20 - 20
Mechanical endurance class
Circuit breaker M1/2000
Earth switch M0/1000
Electrical endurance class
Circuit breaker E2/2000
Earth switch E1
Operating mechanism
Tripping time ms >80 >80 >80
Operating sequence for mechanism 0-3min-CO-3min-CO
Local: close / open Hand lever / pushbutton
Remote: close / open Motor / coil
Technical data sheet
* For higher altitude applications please contact local Lucy Switchgear sales office.
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DimensionsAegis ring main unit
DimensionsAir metering unit
500mm 840mm 1235mm
1650mm
1: L function height is not affected with addition of E&T facility
2: For V & T functions with E&T facility add 150mm to overall height “A”of the unit
Cable Termination Height (Distance between cable clamp and bushings)
Dim A
Dim B
450 1095 575
600 1245 727
800 1455 940
886mm
A
B
50mm
967mm617mm
1244
mm
1-function 2-functions 3-functions
4-functions
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Optional features applicable to L (Load Break Switch) function only
Rated current (choose any one) 400 Amps
630 Amps
EFI (choose any one) BFZ-50
MFZ-50
MLZ-50
CFZ-50
CLZ-50
BLZ-50
Any other*
Optional features applicable to V or T (Vacuum Circuit Breaker) function only
Secondary injection (tick for each selected function, if needed)
Protection device (choose any one) TLF (Time Limit Fuses)
WIP1
Other*
Protection (CT) current transformer for TLF or Relay (choose any one)
Dual (Primary) Ratio CT 100:50/-
Dual (Primary) Ratio CT 200:100/-
Triple (Primary) Ratio CT 150:100:50/-
Manual Push To Trip button (tick for each selected function, if needed)
Shunt Trips (choose any one) 12V DC
24V DC
48V DC
110V DC
110V AC
240V AC
Multiple voltage (24V DC - 240VDC)
Note:TheringmainunitsgaschamberaresuppliedwithAFL(Frontandsideways)rating.IfyourequireunitswithAFLR(Front,sideandrear)ratingspleasecontactourlocalsalesoffice.
*Please fill the details in comment section below.
Comments
Order quantity / number of units (please fill separate form for each type)
Extensibility (choose any one) Non extensible
Extensible left hand right hand both sides
IP rating: Installation conditions (choose any one) IP54 Metal clad outdoor (available for non extensible range only)
IP41 Indoor (available for extensible and non extensible range)Colour RA L7032 as standard (other colours are only available on request)
Features common to all functions
Low gas pressure alarm 1N/O (tick if needed, only one per tank)
Number of ways and functions needed at each position:
Starting from the left, write any one of L, V or T in each box depending upon the
number of ways needed.
For example:
Motor wiring (tick for each selected function, if needed)
Motor for remote operation (tick for each selected function, if needed)
Cable Earth & Test facility (E&T) (tick for each selected function, if needed)
Cable bushings termination height (choose any one) 450
600
810
Cable box: Internal arc proof
VPIS (choose any one) Neon indicator with push to test button
Pfisterer socket
Auxiliary switches (choose any one) 1N/O, 1N/C
2N/O, 2N/C
Cable compartment
Cable clamp material (choose any one) Metal
Plastic
Cable entry type (choose any one) 3 single core cable
Single 3 core cable
Voltage rating (choose any one) 12kV
15.5kV
17.5kV
24kV
First Second Third Fourth (e.g. 1 function) (e.g. 2 function) (e.g. 3 function) (e.g. 4 function)
L V T L
Name:
Address:
To use this form, please photocopy and return the completed form to your nearest Lucy Switchgear office (addresses can be found on the back cover)
Company:
Tel no:
Fax no:
Email:
Order number:
Aegisorderform
Voltage range
Functions current ratings 12kV/15.5kV 17.5kV 24kV
L 630A 400A 400A
T 250A 250A 400A
V 630A - -