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ELECTRIC SWITCHGEAR Selection Guide
Content
About us 003-013
| Group&Companyprofile 003 |
| Sustainability atZtelec 004 |
| Certificates&Patents 005 |
| Industrial developmenthistory 006 |
| Flexible&Highefficientmanufacture 008 |
| Testing&Services 010 |
| Customercases 012 |
High voltage switchgear
014-045
KYN61-40.5 (Z) armoredremovableACmetalenclosedswitchgear 015
KYN28-24 (Z) armoredremovableACswitchgear 018
KYN28A-12 armored removable AC metalenclosed switchgear 029
HXGN -12(SF6) unit type AC metal enclosed ring main unit switchgear 034
XGN7-12 boxtype fixed metal enclosed switchgear 038
XGN 口-12 fully sealed insulated inflatable ring main unit switchgear 040
XGN-12intelligentsolidinsulationcabinet 042
Low-voltage switchgear 047-064
GCKlowvoltagewithdrawableswitchgear 047
GCS low-voltage withdrawable switchgear 050
MNSlow-voltagewithdrawable switchgear 053
GGJ low-voltage reactive power intelligent compensation device 056
GGDAClow-voltagefixed typeswitchgear 059
XL-21powerdistributioncabinet 062
JP integrated distribution box(compensation/control/terminallighting) 064
Orderinformation 066
Founded in1958,HenanZhongtian Electric Equipment Group(hereinafter referred toasZtelecGroup)was formerly owned by the Ministryof Light Industry.telecGroup adheres tothe core value concept of “Vision,Innovation and Responsibit” and takes“Power the word with greenand reliabity” as its owresonsibity.Focusing on production and manufacturing forveryears, the grouphasdeveloped intoanintgrated groupcmpanypecializing infourindustri: Electric equpment, Composite materials,Eamelld coperwires, and htovoltaic eergytlcGroupspreetd by 5 manufacturing bases across 4 cities Xuchang,Guiyang, Chengdu, and Dongguan) inChina, with more than 1500 employees worldwide.
Ztelecisfocusing onmanufacturing MVandLV power generation, transmission, anddistributionquipment, as wllas PV equipment, including flexible solar panels, energy storage, energy management devices, and sustations.telec owns1nationalpostdoctoralresearchstationand2provincialtechnologycenters.ltclselycooperateswiththeational AdvancedMaterialsLaboratorofBeihangUniversityandtheInstituteofPlasmaof theChineseAcademyofSciencesto promote inteligent manufacturing levels anddigitization transformation.Ztelecisa Chinese enterprise commited tothe developmentf globalization,prmoting anopentcholgyandpaterosystem,andactivelypraticingthecommn values of meaning, inclusiveness, and empowerment.
Manufacturingbase
1 Nationalpostdoctoral researchstation
The continuous improvement of the economy and environment in our community and the enhancement of the life quality of ourstaffand theirfamilies are the sustained aims ofZtelec.
In ordertoachieve these aimsZtelechasmadegreat effortstoward thebalance betweeneconomicdevelopment andenvironmentalprotection,ncludinghowtodesignandmanufactureproductshowtorefineproductsand services provided,howtocooperatewithlocal supliers andevaluate risks andopportunitie,and howtofulilits responsibilities.
03 Certificates & Patents
36 National Patents Granted-Validated (Innovations in core technologies, product design, and manufacturing excellence) Global Compliance & Certification-Certified by ISO, CE, CB, and International Standards
04 Industrial development history
We introduced complete testing equipment and manufacturingmachines,and started to produce power equipment, including 10kV and35kV oil-immersed transformers and 10kV switchgear.
2003
1715
2006
SuccessfullyobtainedISO9001:2008 and ISO14001certifications;thefullseriesof6kV, 10kV, and 35kV transformers passed the "type test"and“special test"conductedby the SuzhouElectrical ApplianceResearchInstitute.
Wonmultiplebidswithatotalamountof approximately 6$ million for the power transmissionand transformationprojectsfrom the State Grid Corporation of China.
2009
2010
StartedtheproductionofS11andS13series castresin dry-type transformers.Achieved significantprogressindeveloping theS15series of high-efficiency amorphous alloy transformers.
Throughthecooperationwith CNOoC, developed transformers for offshore power supply systemundermarine operation environment.
2012
Successfullypassed the audit ofSAM suppliermanagement systemfromSchneider Electric and became their supplier in the field of Variable frequency transformer.
2017
Begantoprovide containertype or box-type step-up integrated equipmentfor energystoragepowerstations (CESS),which integrates35kV high-voltage switchgear, lowvoltage switchgear and drytype isolation transformers.
2022
2014
It has graduallyformed fourproductproduction lines, including oil immersed transformer, dry type transformer,high and lowvoltage switch gear, and boxtype substation.Meanwhile,started thesamplemakingandmarketdevelopmentof mining transformer,open type transformer and variable frequency transformer.
2019
2023
Startedbatchproductionoftractiontransformer forrailway,prefabricatedphotovoltaicintelligent substation and photovoltaicpower generation system equipment.
05 Flexible & High efficient manufacture
Respond quickly to the customer's special requirements regarding environment, appearance, efficiency, delivery time, transportation, special quality requirements,and others.Provide personalized design and shorten the delivery cycle time.
OrganizeproductioninaccordancewithGBand international(IECandIEEE)standards,implement a full-process control conceptfromrawmaterial warehousing control to finished product inspection, focusoncustomers'experiencesandcoreneeds,and provideproductsandservicesthatexceedcustomers' expectations
+ Maufacturing equipment
1 Numerical Control Punching Machine
2 Numerical Control Bending Machine
3 Busbar Processing Machine
4 Laser Cutting Machine
+ Implementation of TQM and Systerm
Afterintroducing the lean production concept, weestablished50leanimprovementquality criteria.Eachprocessisprovidedwith operationinstructions andstandardized operation criteria toimplement the production plan,using timely management to improve communication efficiency and continuously shortendeliverytime.TheToyotaProduction System (TPS),with a core focus on production process management (MPS),has gradually beendevelopedby connecting sales,materials. planning, supply chain, services, and other areas.
06 Testing
RegularTests
Type Tests
Special Tests
^+ Voltageratiomeasurement
^+ Applied withstand voltage test
^+ Inducedwithstandvoltagetest
^+ Partial discharge measurement
^+ Noloadlossandcurrentmeasurement
^+ Winding resistances measurement
^+ Insulationresistancetest
^+ Load loss and short circuit impedance measurement
^+ Transformer oil test
On customerrequirements ^+ Temperature rise test ^+ Lightning impulse test ^+ Noise level test
On customers'requirements,below parameterscanbechecked
^+ Zero-sequence impedance ^+ No-loadvoltageharmonic ^+ Parallel capacity of windings ^+ Anti-corrosion protection checking ^+ Short circuit test
07 Installation and Service
Warehouse
^+ In the warehouse,transformers should beprotected from the pollutionofwaterdroplets,dustandsand.Ifprovidedwith plastic cover,the transformer should be covered during storage.
Transport
^+ Thetransformeris equipped withsafety transport devices.The transformerwithoutshell shallbe lifted with liftinglugs,the mediumandsmalldrytransformerswithshellshallbelifted withliftingrings,andthelargetransformershallbeliftedwith special liftingdeviceforfoundationchannel steel.
Shipping
^+ The product is readyfor shipping eitherby truck or sea freight once it haspassed thetests.Wetake care ofall official doucments,depending on destinations and delivery terms. We also provide different packaging for special applications or conditions.
Installation
^+ Wesupplytheinstallationguideand usermanual foreach transformer.Under normal conditions,check the transformer onceayearandclearthedustbyvacuumcleaner.The frequency of cleaning depends on the running conditions.
Service
^+ When some partsneed tobereplaced or any information is required,themainparametersonthenameplatemustbe provided, especially the serial number. We provide stock in regular quantities of spareparts,incase of customer needs.
08 Customer cases
SAIF225MWGasTurbineCombined Cycle Power Project,Pakistan
Khutul,"CEMENT-SHOKHO"JSC, Mongolia, 2015
Other achievements (in no particular order)
Aerospace and militaryprojects:
Wind and light new energy projects:
^+ Xinxiang Aviation Industry Group ^+ Guilin Aerospace Electronics Co., Ltd. ^+ Guizhou Aerospace Electric Co.,Ltd. ^+ AVIC Chengdu Aircraft Industry Group
^+ Mahayana Wind Power Project
^+ Mingyang Electric Co., Ltd.
^+ Xuchang City Public Traffic Power Charging Construction
Automation field:
Metallurgy and petrochemical:
^+ Huichuan Technology Co., Ltd.
^+ Hekang New Energy Technology Co., Ltd.
^+ Wolong Electric Group Co., Ltd.
^+ Leadford Electric Technology Co., Ltd.
^+ Shandong Xinfeng Electronics Technology Co., Ltd. ^+ Shenzhen Kumark Drier & Automation
^+ Shanghai Dongfang Electric ^+ Shenhua Group
^+ Yongfeng Iron and Steel Group Co., Ltd.
^+ Harbin Electric Wind Energy Co., Ltd.
^+ China Pingmei Shenma Group
^+ China Shenhua Coal
^+ Anyang lron and Steel
^+ State Grid Henan Electric Power Company
Business school program:
^+ Xinzheng South China City
^+ Xinzheng Wuyue Plaza
^+ The mainvenue of the National Peasant Games
^+ Zhengshang Stock Business Centers
^+ Jianye Group
^+ Yongwei Group
^+ CRCC No.18 Bureau Group
^+ Country Gradend Holdings Group
^+ Henan National University Science Park
Industrial manufacturing project:
^+ Puyang Longfeng Power Plant
+ Xuchang Jinhui Stainless Steel Group Co., Ltd.
+ Henan Zhigu Industrial Park
^+ VietnamTinhBacNinhSolar Project
+ Philippine Paper Mill Powering System
^+ Geely Automobile Zhejiang Intelligent Plant
Pulp&Paper:
+ Huatai Group ^+ Chenming Group + Hengan Group + Yinge Group ^+ Lee & Man Paper Mill ^+ Henli Group ^+ Yilin Paper Mill
ZTELEC is a top brand group company strongly supported by our own R&D team.
High voltage switch equipment
Overview概述
KYN61-40.5 (Z) Armored removable AC metal enclosed switchgear (hereinafter referred to as switchgear) is an indoor complete set of power distribution equipment of three-phase AC 50H z and rated voltage of 40.5\mathsf{k V} used for receiving anddisriinlricegwelat,trfmutatiminnandidstritprit.t protects anddetects thecircuits and isalsoapplicableto frequent perationlocations.Thiswitchgear complies with GB3906,GB/T11022,IEC62271,etC.
Features
^+ Cabinet structure adoptsassembled type,the circuit breakeradoptsfloortypehandcart structure;
^+ Equipped withbrand nwmsiteinsulatedacumcircuit breake faturedwithgood interchangeabityande to change;
^+ Thehandcar framemutedwithdscrtpropinmechanimabltmvethandarteasild prevent damage of propelling mechanismcaused by misoperation;
^+ Alloperationscanbecarriedoutwhenthecabinetdoorisclosed;
^+ Interlocking among the main switch, handcart and switchgear adopts compulsory mechanical locking mode, fuliling the "five preventions" function;
^+ Cable chamber is large enough,it could connect multi cables.
Vacuumcircuitbreakermaintechnicalparameters
| Name | Unit | Value |
| Rated voltage | kV | 40.5 |
| Rated frequency | Hz | 50 |
| Ratedpowerfrequencywithstandvoltage | kV | 95/1min |
| Rated lightning impulse withstand voltage | kV | 185 |
| Rated current | A | 125016002000 |
| Rated short-time withstand current | KA | 20 25 31.5 |
| Ratedshort-timebreakingcurrent | KA | 20 25 31.5 |
| Rated peak withstand current | kV | 50 6380 |
| Ratedshort-circuitduration | ms | 4 |
| Opening time | ms | 30≤t≤60 |
| Closing time | s | 50≤t≤100 |
| Rated short-circuit breaking current times | times | |
| Mechanical life | times | 20 10000 |
Vacuum switchgear main technicalparameter
| Name | Unit | Value |
| Rated voltage | kV | 40.5 |
| Rated current | A | 1250 1600 2000 |
| Rated frequency | Hz | 50 |
| Rated short-timewithstand current | KA | 20 25 31.5 |
| Ratedpeakwithstandcurrent | KA | 506380 |
| Rated power frequency withstand voltage | kV | 95/1min |
| Rated lightingimpulsewithstandvoltage | kV | 185 |
| Rated short-circuit duration | s | 4 |
| Degreeofprotection | IP3X |
Overview
KYN28-24 (Z) series armored moveable ACmetal switchgear(hereinafterreferred toas"switchgear") isa complete power distributiondevicefor20kVthree-phaseAC 50(60)H z singlebus and single bus section system.It ismainly used inpower plants, power transmissonof smalland medium-sied generator,powerdistributionofindustria and mining enterprise, and powerreceivingand transmissionofsecondarysubstationsinelectricalystemsaswellasstartingof largehih voltage motors, etc, to implement control protection and monitoring.
Theswitchgearfaturesa“five-prevention”intrlockfunction.tcanprevent thecircuitbreakerfrmbeingpushed and pulledudeladavid itmsopening andmilsingstptheground switchfrmreclosingwhnit'spen people frommistakenly entering the livecompartment, and preclude the ground switchfrombeingwronglyopened when the power ison.Essentially it is ahighperformance owerdstribtion device that comlies with standards iG, GB/T 11022,and IEC 62271.
Type description
Environmental conditions
aAmbient airtemperature:- 15°C ~+40°\mathsf C .n
Altitude:≤1000m;
CRelative humidity; daily≤95%,monthly≤90%;
Seismic intensity: <=8° B
hstallatsihdffiianeriutrrre
Note:Please negotiatewith usif your product is used beyond therange of above conditions.
Themaintechnicalparameters
| Name | Unit | Value |
| Matched circuitbreaker | ||
| Rated voltage | kV | 24kV |
| 1min power frequency withstand voltage | kV | (50)65 |
| Rated impulse withstand voltage(peak) | kV | 125 |
| Rated frequency | Hz | 50(60) |
| Rated current | A | 63012501600200025003150 |
| Rated current of branchbusbar | A | 630 1250 1600 2000 2500 |
| Rated short-timewithstand current | KA | 16 20 25 31.3 |
| Ratedpeakwithstand current | KA | 40 50 63 80 |
| Rated short circuit duration | S | 4 |
| Protectionlevel | The enclosure is IP4x and it is IP2X when the compartment door and circuit breaker chamberdoor are opened | |
| Weight | kg | 8001000Ratedcurrentabove1600A |
Productstructureperformancecharacteristics
1. Switchgear of 24kV with compact volume
Structureof thisproductissimilartothat ofmid-set switchgearf12kV,theproduct isapplicabletoystemsof0 and doesn't need composite insulation or interphaseseparator,bringing utstanding insulation performance.
2.Safestructure,flexibleinstallation
This switchgear is composed of two pars: cabinet body and mid-set withdrawable par (ie.handcart).The cabint body isdivided intfou separate comparments protectionree of theenclosure is I4,andit is IXwhencompamnt doors and circuit breakerchamberdoorareopened.lt hasoverhead incoming and outgoing line,cableincoming and outgoing lineandotherfntionschemesit canbecomeapowerdistrbutionunitof diffeent schemsand formaft permutationand combinationThis switchgear canbe installd, debugged and maintained from the front side soit can be arranged in duplexbymeans of back-to-back oraranged against thewal, which not only improves its safety and flexibility, but also reduces the floor space.
Wall bushing
Current transformer
Valvemechanism
Analog primary diagram
Primary cable
Handcartofcircuitbreaker
Mainbusbar
Earthing busbar
Insulator
Contact box
Secondaryinterlocking assembly
Frameworkofcabinetbody
3. Lightning impulse resistant capacity
Upk=125.33kVT1=1.11usT2=45.45us
4.Various handcarts, convenient operation
The frame of thehandcart is also made of thin steel plate and assembled after being processed by CNC machine. The handcarulatedwiththabitndthmchaicrloarelaleandfxicrdingtth purpose,handcart candividd intcircuit breakerhandcart, vltage transfomandcart, islationandca, t same
specificationsofthecarcanbereplaced.
The handcarhasadisconnect position,atest positionandaworking positioninthecabinetbody,and eachpositon hasapositioningdevicetoensurethereliabityof interlockingtmustbeoperated according totheinterlockingantimisoperation procedureAkindsof handcartscanbedrewinand outbycrew.The operationseasyand flexiblefor operators.henthecabint needstoberemovedbyhand, special ransfrhandcart canbeused tconvenientlytake itout frariouspectionandmaintenanceanditadpti-set tye,thsizsmalwithconveniet npt and maintenance.
The maincircuitscheme diagram
| Scheme number | 01 | 02 | 03 | 04 | ||
| Primary wiring diagram | D | |||||
| Dimension (WxDxH) mm | 1000×1820×2300 | 1000×1820×2300 | 1000×1820×2300 | 1000*1820*2300 | ||
| Main electrical components | Rated current (A) | 630-3150A | ||||
| Vacuumcircuitbreaker | 1 | 1 | 1 | 1 | ||
| Current transformer | 2-3 | 2-3 | 2-3 | 2-3 | ||
| Voltage transformer | 1 | |||||
| High-voltage fuse | ||||||
| Earthing switch | 1 | 1 | ||||
| Lightning arrester | 3 | |||||
| Application | Powereceing | Powereceing | Powereceing | Power receig | ||
| Remark | ||||||
| Scheme number | 05 | 06 | 07 | 08 | ||
| Primary wiring diagram | ||||||
| Dimension (WxDxH) mm | 1000×1820×2300 | 1000×1820×2300 | 1000×1820×2300 | 1000*1820*2300 | ||
| Main electrical components | Rated current (A) | |||||
| Vacuum circuit breaker | 1 | 630-3150A 1 | 1 | |||
| Current transformer | 3 | 3 | 3 | |||
| Voltage transformer | 1 | |||||
| High-voltage fuse | 2 | |||||
| Earthing switch | 1 | |||||
| Lightning arrester | 3 | 3 | 3 | |||
| Application | Powereceing | Powereing | Powerecing | Isolation | ||
| Remark | ||||||
| Scheme number | 09 | 10 | 11 | ||||
| Primary wiring diagram | 12 | ||||||
| Dimension (WxDxH) mm | 1000×1820×2300 1000x1820×2300 1000×1820×2300 1000*1820*2300 | ||||||
| Main electrical components | Rated current (A) | 630-3150A | |||||
| Vacuumcircuitbreaker | |||||||
| Current transformer | |||||||
| Voltage transformer | 2-3 | 3 | 2-3 | ||||
| High-voltage fuse | 3 | 3 | 3 | ||||
| Earthing switch | |||||||
| Lightning arrester | 3 | ||||||
| Application | Buscouple isolation | Voltage measurement | Voltage measurement | Voltage measurement | |||
| Remark | |||||||
| Scheme number | 13 | 14 | 15 | 16 | |||||
| Primary wiring diagram | 888 | H | 888 | 888 | |||||
| Dimension (WxDxH) mm | 1000×1820×2300 | 1000×1820×2300 | 1000×1820×2300 | 1000*1820*2300 | |||||
| Main electrical components | Rated current (A) | 630-3150A | |||||||
| Vacuumcircuitbreaker | |||||||||
| Current transformer | |||||||||
| 3 | 3 | ||||||||
| Voltage transformer | 3 | 3 | 3 | ||||||
| High-voltage fuse | 3 | 3 | |||||||
| Earthing switch Lightning arrester | 3 | 3 | |||||||
| Application | Measurement | Fuse | Measurement | Measurement | |||||
| Remark | |||||||||
| Scheme number | 17 | 18 | 19 | 20 | ||||
| Primarywiring diagram | 88 T | 88 | e 888 | |||||
| Dimension (W×DxH) mm | 1000×1820×2300 | 1000×1820×2300 | 000×1820×2300 | 1000*1820*2300 | ||||
| Main electrical components | Rated current (A) | |||||||
| Vacuumcircuitbreaker | 1 | 630-3150A 1 | ||||||
| 2-3 | 2-3 | 3 | 3 | |||||
| Current transformer Voltage transformer | 2 | 3 | ||||||
| High-voltage fuse | 3 | |||||||
| Earthing switch | 3 | |||||||
| Lightning arrester | ||||||||
| Application | Liaison+metering | Liaison+metering | ||||||
| Remark | Liaison | |||||||
| Scheme number | 21 | 22 | 23 | 24 | ||
| Primary wiring diagram | DD | Q D | ||||
| 1000×2150×2300 1000×2150×2300 | ||||||
| Main electrical components | Dimension (WxDxH) mm Rated current (A) | 630-3150A | ||||
| Vacuumcircuitbreaker | ||||||
| 1 | 1 | |||||
| Current transformer | 2-3 | 3 | ||||
| Voltage transformer | ||||||
| High-voltage fuse | ||||||
| Earthing switch | ||||||
| Lightning arrester | 3 Overhead | |||||
| Application | Liaison | incoming line | ||||
| Remark | ||||||
Overview
Thisdevicesanindooretalamrdwithdrawablewithgear erenafterrfrredtasswitchgear,andit sacol power distrbution device for3.6-12kV three-phase AC 50Hz single busbar and single busbarsegmental system.lt is mainlyused inpowerplants,mallandmedium-siedgeneratorsforpower transmission,and powerdistrbutiofo industrialandminingntpriseandpwerreceptionand ranmisionfsecndaysustatinsneltricaystem well as starting of large high-voltage motors, etc.It is used for control, protection and monitoring.
This switchgear complies withstandards lieGB3906,GB1102,andIC62271.It featuresaninterlockfunctionthat canpreventthercuitbreakerandcarfrmbengmvedinrotwhileunderladvidthecircuitbrekersncrt opening and closing,stopthecircuit breaker fromclosing when the grounding swithisclsed and the powerison,ep people fromaccidentallyentering thelivecompartment,and precludethegrounding switchfrombeing wronglyclosed when powered.t canefttd withetheraVSIvacum circuit breakeror'sVD4vacum circuit breaker.verall it's a high-performancepowerdistribution device.
Structureintroduction
The switchgearisdesigned according to the armored metal -enclosed switchgearinGB3906-91.The switchgear bodyis composedof twoparts:thecabinet bodyand thecentral withdrawablepart(handcart,asshowninFigure1.hecabinet isdividedintfourparatecmparmentsTeprotectiovelf thutrshelisanditisXwhenthor of each small compartment and the circuit breaker door are opened.Withoverhead incoming and outgoing lines cable incoming and outgoing linesandotherfunctional schemes, it canform power-distributinunitsinvarius configurations througharrangement andcombinationThewitchgercaneinstalledebuggedandmaintained fromthefront canbearrangedinadoublrwbacktbackconfigurationorinstalldagainst thewallwhichmprovesthesafet and flexibility of the switchgear and reduces the floor space.
Environmental conditions
aAmbient air temperature:upperlimit +40°\mathsf{C} lowerlimit -15°C B
Altitude:≤1000m;
;Relativehumidity:thedailyaveragerelativehumidity isnotmorethan 95% andthemonthlyaveragerelativehumidityis not more than 90%
Earthquake: the magnitude does not exceed 8;
The surrounding air should notbe polluted bycorrosiveorcombustible gases,watervapor,etc;
fThereisnserious polltion and frequent severe vibration, and the severty desinmeets the requirements of categor 1 under severe conditions.
Themain technicalparameters
| Name | Unit | Data | |
| Matched circuit breaker | |||
| ZN63A-12(VS1) | VD4 | ||
| Rated voltage | KV | 12 | 12 |
| 1minpowerfrequencywithstandvoltage | kV | 42 | 42 |
| Rated impulse withstand voltage(peak) | kV | 75 | 75 |
| Rated frequency | Hz | 50 | 50 |
| Rated current | A | 630、 1250、1600、2000、2500、3150、4000、5000 | |
| Rated current of branchbusbar | A | 630、1250、1600、2000、2500、3150、4000、5000 | |
| Rated short-time withstand current(virtual value) | KA | 16、20、25、31.5、40、50 | 16、20、25、31.5、40、50 |
| Ratedpeakwithstand current | KA | 40、50、 63、80、100、125 | 40、50、63、80、100、125 |
| Rated shortcircuitduration | S | 4 | |
| Protectionlevel | The sell is IP4X and it is IP2X when the compartment door and handcartdoorisopened | ||
| Weight | kg | 700-1200 | 700-1200 |
Switchgearstructurediagram
Busbarroom
Circuitbreakerhandcartroom
Cableroom
Relay instrument room
Shell
Earthing switch
Withdrawablehorizontal partition
Branch small busbar
Cable
Heating device
Busbar bushing
Lightning arrester
Circuitbreakerhandcart
Mainbusbar
Earthing main busbar
Secondary plug
Staticcontactdevice
Baseplate
Partition (valve)
Contact box
Control small busbar
Detachable partition
Current transformer
Earthing switch operating mechanism
Pressurerelease channel
SwitchgearBoundaryDimensions
A.Handcart
The frame of the handcart is made of thinsteel plates processed by CNC machine tools and then riveted and welded. Accordingtothealicatihandcatscanbedividedintcircuitreakerandcarltaetransfomeradarts isolationhandcarts,metring handcarts,etc.Handcarts of the same speificatincane relacedThehandcart hasan isolationposition, atst positionandaworking ositionin thecabinet, and eachpositionisequipped withapositoning devicetoensurethathehandcartcannotbemovedcasuallywhenit isinthepositionsmentiondaboveandth interlock must bereleased when thehandcart ismoved.
B.Busbar chamber
Thebusbarisled frmonewitchgeartoanother,andfiedbythebranchbusbarand thestaticcontactbox.Theflat branchbusbarisconnectedtothestaticcontactboxandthemainbusbarbyboltswithout anytherclamporinsulato connection.When the user and project have special needs,theconnecting bolts onthebusbarcanbe encapsulated withinsulationandendcasWhen thebusbarpassesthroughthe partitionof thewithcabinet,fixit withtheuba bushingfaninteralfaultarcccurs,itcanlmit theacident fromspreadingtadacentcabinetsandensureth mechanical strengthof thebusbar.
C. Cable chamber
Current transformers, grounding switches,lightning arresters and cables can e installed in the chamber, and a detachable aluminumplatewithslotscanbepreparedat thebottomtoensureconvenientconstructiononsite.
D.Relay instrument chamber
Therelaystrument chambeedtinstallariuscmnentsuchaselasintrumentsignadiatord operationswitches.addition,asmallbusbarroomcaneaddedonthetopof theinstrument roomaccording touse requirements,andsixteencontrolsmallbusbarscanbelaid.
E.Pressure relief device
Current transfomers, grounding switches,lightning arresters and cables can be installed in the chamber, and a detachablealuminumplatewithslotscanbepreparedat thebottomtoensureconvenientconstructiononsite.
Lockdevice
The connectionbetween the middle doorand the cabinet body adopts alock structure, and is equipped with aliting mechanism, whichmakesthepeningof the middle door more convenient.When the middle doorisclosed,the conection strengthetweenitandthecabintodsetterwhichenhancstheabitytffectivelcmbatinteralarcingfalt.
Overview
HXGN-12(SF6)Unit typeACmetal enclosed ring mainunit (hereinafterefertoas ring networkcabinet)isa new generationof high-voltage elctric appliance product designed and developed independentlyby our company according to the requirementof the domestic agricultural elctricityand thecitynet transformation after introductionofverseas advanced technology.Eachtechnical performance indexcompletelyreachesthe IEC62271andGB3906 standard.
The main switch, operation mechanism and components of ring mainunit is made of the ABB Corporation original parts ortheSFL-12/24swithequipment importedoverseasand assembled athomeWecanalsoinstalltheABBCorporation originalparsofHAD/UStpeFaccording totherequestofusers.Theoperationof circuit breakerorVD4-Svacum circuitbreakerisdivided intotwomodes:manualand electrical operation.
The cabinet body is riveted after procesed by CNC machine tool with reliable mechanicalinterlocking and misoperating preventionfunction.The protectionlevelreachesI3X.his producthas the remarkable charactersticssuchas the small volumeltwehatractiaranemeratniharamtrthltnandmint free.
Application
HXGN-12 (SF6）unit typeAC metal ring-network switchgear is suitable forAC 50Hz, 12Kv, serving as device of receiving and distribution of electrical energy.
Type description
Environmental conditions
a Surrounding air is free from corrosive gas or flammable gas,steam and other obvious pollution;
b Relative temperature: the daily average value <=95% the monthly average value {\tt s90%}
：The altitude should notexceed 2000m;
Without frequent vibration;
eSurrounding airtemperature: -15°C~+40°C
Structutalfeaturesandworkingprinciple
This ring network type cabinet makes airas the insulating medium and it is mainly assembled with ZFN-10/30 type vacuum load switch.And there are twocabinet schemes-incoming cabinet and outgoing cabinet.
1. Incoming cabinet scheme
There is a ZFN-10/630 typevacuum load switch on the main circuit inside the cabinet with isolating knife,and grounding knifeThearealinstald inonemachine stand and theyare interlcked, realing theconnectionof thre working stationsofusbar,solationand grundingsidethecabinet,omonents suchascanbeinstalld flexibly.
2.Outgoingcabinetscheme
There is aZFN-10/630 type vacuumload switch,fuse with striker(used as isolating switch and grounding knife onthemancircuitinsidecabinetndtheperationf threworkingstationscanberealizedsidethecabinet components suchasCT/PT and ZNO arrester canbe instald flexibly, so the metering cabinet canbe removed.Inside the incoming cabinet andoutgoing cabinet, there is insulating protectionbaffle interloked with grounding switch.nd insidethecabinets, themechanical interlocksareadopted betweeneachswitchand baffleaswellasthecabinet door with the requirement of “five-prevention” and IP2X of the protection degree of the cabinet enclosure.
Maintenance and repair
1Afer thcabintispenechecklof theinulationpars anddissemle thdampnsulationartput thm 70–80°C drying box, and take them out for debugging again after 48 hours drying.
2 If the product is damp or rusty during the storage, please clean it at once and protect it well.
3 Maintenance and inspection should be done regularly on ring network cabinet during operation.
(1) Vacuum degree of vacuum arc-extinguishing room;
(2) Contact abrasion degree;
(3) Whether the fastening pieces areloose or not;
(4) Mechanical electric parameter such as opening range, overrun;
(5) Whether the running is flexible or not;
(6) Whether the interlock is reliable or not;
(7) Whether all parts are clean,especially the insulation fittings.
4 Conduct overall examination and debugging to ring network cabinet in following conditions:
(1) Routine examination and cleaning once a year;
(2) Afterevery 2000 times operation of load switch.
Storage
Ring networkcabinetshouldbestored inthedryandventilated warehousewithtemperatureof-15°℃ ~+40°\mathsf C
1 Certificate of quality
4 Appending accessories list
2 Installation and operation instruction
5 Secondary connection diagram
3 Packing list
Themaintechnicalparameters
| Item | Unit | Parameters |
| Rated voltage | kV | 12 |
| Ratedfrequency | Hz | 50 |
| Ratedcurrentofmainbusbar/Maxratedcurrentoffuse | A | 630/125 |
| Rated short timewithstand currentof maincircuit andearthcircuit | kA/s | 20/3 |
| Ratedpeakwithstandcurrentofmaincircuit andearthcircuit | KA | 50 |
| Rated short-circuit making current of main circuit and earth circuit | KA | 50 |
| The opening times of the load switch with full capacity | 次 | 100 |
| Fusebreaking current | kV | 31.5&40 |
| Rated closed loopbreaking current | A | 630 |
| Rated transfercurrent | A | 1600 |
| Mechanical life | 次 | 2000 |
| 1min power frequencywithstand voltage(peakvalue)betweenphases,phaseandearth/phase and isolationfracture | kV | 42/48 |
| Lighting impulse withstand voltage (peak value)between phases,phase and earth/phase and isolation fracture | kV | 75/85 |
| Secondaryloop1minpowerfrequencywithstandvoltage | kV | 2 |
| Protection level | IP3X | |
Overview
The XGN7-12 box fixed-type metal-enclosed switchgear (switch cabinet for short is used to receive and distribute electricaleerginandthreaeCstmciallnthfrqunteratica Its busbarystemisasinglebusbarsystem(it canbeextended toasinglebusbarwithbranchesoradouble busbar structure).
This switch cabinet conforms tothe requirements of national standard GB3906-913-35kVACMetal-enclosed Switchgear and the international standard IEC62271, and has the function of "five prevention".
The mainswitchof thiswitchcabinet adoptsN28A-12rZN2-12seriesvacuumcircuit breakers,andisquipped with CD17A electromagnetic operating mechanism and CT19B spring operating mechanism.The disconnecting switch adopts GN30-12rotarytypeandGN22-10heavycurrentseriesproducts.
Type description
Environmental conditions
aAmbient temperature:-15°℃ ~+40°C ，，
Altitude≤1000m;
:Relative environment humidity: The daily relative humidity average <=95% The monthly relative humidity average <= 90% 要
I The earthquake magnitude <=8 B
lacesfreeffirexlsionchemicalcorroonandfiecevbrationandthpoutiongradentyonde
Fully sealed fully insulated inflatable ring main unit switchgear
Overview
XGN-12 series fullyinsulated and enclosed ring network switchgearisSF6 gas insulated metal common boxclosed switchgearwhichiscomposed ofloadswitchunit,lad switchandfusecombinationelectricalnit,acuumciruit breakerunit, bubarincming lineunit and othermodules.It uses a rangeof advanced technolgies and materials, and has excllent electrical properties and mechanical properties Theperformance islightlyaffected by the enviroment and clmate.issmallandcmat, easyfreration,naintenance andhas flexibe combination.larand intuitive dsi ensureseasyanddiret operationthasalargefeederwiringcapacityandissuitablefraarietyofwiringsystms.
Type description
Four core competitiveness
1Operational safetyThrough the following security measures, wecan provide users with special securityguarantee:
(a) Integrated three-position load switch;
(b) The circuit breaker with aload-switchreplacing the isolation switch issaferand more reliable;
(c) Primary-side fully enclosed design provides protection against accidental contact;
(d) Mechanical interlock to meet the requirements of five-prevention;
(e) Charged display can provide instructions for electrification on the incoming and outgoing lines.
2Reliable operationFullysealddesign, allkVswitchesand busbarcharged bodiesaresealed in the airboxweldd with 3mm stainlessteelplate;quipped withsilonerubercable plg torealie thecablehead sealed, sothat i s not affected by dust,moisture,small animals and otherexternalenvironment:
(a) Spring energy storage operating mechanism, can be manually or electrically operated;
(b) Panel model line diagram provides switch position indication;
(c) Cabinet is made of galvanized sheet, electrostatic spraying onthe surface to enhance corrosion resistance;
(d) The pressure gauge monitors the safe pressure range of SF6 gas in the box.
3 Economy:
(a) Maintenance-free;
(b) High reliability;
(c) Service life up to 20 years.
4 The program is flexible:
(a) Multiple incoming ways from left, right, up or front;
(b) Multiple combinations, any combination between the units can be achieved;
(c) Insulation busbars can be used to combine front and back cabinets or left and right cabinets;
(d) Flexible design;
(e) Optional arrangement of spring mechanism and permanent magnet mechanism.
Overview
XGN-12serissolidfullinulatedandclosedringnetworkswitchgearisaindofsolidinsulationacuwitchgearwith fullinsulation,fullseal andmaintenancefrllhig-vltage livpartsarecast andmoulded using pxy resnmate with excellent insulating property,whichorganicall integratesthe vacuumarc extinguishing chamber,mainelectri circuit andnulatiuprt,andthftionaiteotedbyulynulatdolidubarherforethl switchgear is not affectedbyexteal environment, which canensure thereliabiltyof equpment operation and the safety of operators.
Therinwrkcabasthharctristifslesttureiblratiolalrlckngandn installation. It is suitable for 50H z and 12kV power systems and is widely used in industrial and civil cable ring networks and distributiotwormilngieriasthreceivinanddstribtiofltricnegditpcialluital powerditribtionuranresidentialareasmalltationspening andclsing stations calbranchbxeb-ty substation, industrial and mnng enterpris spping mall and airprt suwaywpwer eneration,ia, stadiums,railways,tunnels and other places.
Becausethrdtasthdvantaeffullinuatoll ealingandfll heniticiallyuitae places withhigh altitude,hightemperature,damp heat,severe cold and severe pollution.
Type description
Category
According to switchestye, it is divided intolad swithes with grounding assembly(C mdule forshort),lad switch without grounding assembly(CBmodule forshort) and circuit breakers with grounding assembly (Vmodule for short) circuit breakerwithout grounding assemblyVmodule forshort),circuit breakerinterconnectionswitchmodule fo short), load switch+fuse combination electrical switch assembly (F module for short) and isolating swith assembly (G module for short).
Environmental conditions
aAmbient temperature: -15°C to +45°\mathsf{C}
b Humidity \because Maximum average relative humidity, with a daily average of 95% or below and a monthly average of 90% or below;
C Altitude: below 1000 meters;
Seismic resistance:8 degree;
eProtection level:live body seal IP67,fusebarrel IP67,switchcabinet shell IP3X.
Applicationfields
+Low temperature and cold areas: there is no application of SF6 gas, so it can run normally at -15°C without considering the low temperature operation of SF6.
^+ Plateau area: it is unnecessary to consider the influence of plateau atmospheric pressure on insulation performance.
^+ Strongsandstormarea:thsaftyrotectionevefthesolidinulatinringntworkcabinetbodyandth control loop room adopts special treatment to ensure long-term operation in strong sandstorm areas.
^+ Coastalwetarea:ealed withoxyresin,rsistant tmoistureand salt praycorrosion,enuring lng-tm coastal areas.
^+ Areas withhighenvironmentalprotectionrequirements:TheinfluenceofSF6gasonatmosphericwarming hasbeen paid great attentionto,andFgashasbenelmnated inoli ringnetworkcabinets,thscasingnopoltioand harmtotheenvironmentandpeople.
^+ Inthe smart grid:sincethemain switchand isolating switchcanbeelectricallperated, rmote control,tlmetry, andtelecommunicationof switching equipment and substationsitescanberealized,whichcannotnlycarryout decentralizedcontrol,butalsofacilitatecentralizedcontrol.
Themain technicalparameters
| Projects | Unit | Parameters |
| Conventional | ||
| Rated voltage | kV | 12 |
| Rated frequency | Hz | 50 |
| Power frequency withstand voltage | kV/min | 42/48 |
| Lightning impulse withstand voltage | kV | 75/85 |
| Arc duration | S | ≥0.5 |
| Protection grade of primary components | IP67 | |
| (except metering cabinet) Cabinet protection level | IP4X | |
| Protection level between compartments | IP2X | |
| Operating supplyvoltage | V | DC24、48、110、220 |
| AC110、220 | ||
| Busbar system Rated current | A | |
| Rated short-time withstand current | kA/s | 630(1250) |
| Rated peak withstand current | 20/4(25/4) | |
| Load switch unit | KA | 50(63) |
| Rated current | ||
| Rated short circuitmaking current | A KA | 630 |
| Rated short-time withstand current | kA/s | 50 20/4 |
| Mechanical lifeof load switch | times | |
| Electrical life of load switch | times | E3 |
| Partial discharge | ||
| Circuit breaker unit | PC | ≤5 |
| Rated current | A | 630(1250) |
| Rated short circuit breaking current | KA | 20(25) |
Themaintechnicalparameters
| Projects | Unit | Parameters |
| Rated short circuit making current | KA | 50(63) |
| Rated short-time withstand current | kA/s | 20/4(25/4) |
| Mechanicallifeofcircuitbreaker | times | 20000 |
| Circuit breaker electrical life | times | E2 |
| Rated operating sequence | O-0.3s-CO-180s-CO | |
| Partial discharge | PC | ≤5 |
| Load switch-fuse combination electric unit | ||
| Rated current(maximum) | A | 200 |
| Rated shortcircuitbreaking current | KA | 31.5 |
| Rated short circuit closing current | KA | 80 |
| Partial discharge | PC | 3150 |
| Isolating switch | ||
| Rated current | A | 630/1250 |
| Rated short-termwithstand current | KA | 20/25 |
| Rated short time duration | S | 4 |
| Rated withstand current peak | KA | 50/63 |
| Mechanical life | times | 3000 |
| Earthing switch | ||
| Rated current | A | 630/1250 |
| Rated short-term withstand current | K | 20/25 |
| Rated short time duration | s | 4 |
| Rated peakwithstand current | K | 50/63 |
| Rated short-circuit making current(peak value) | KA | 50 |
| Rated short-circuit making current (times) | times | 2 |
| Mechanicallife | times | 3000 |
ZTELEC is a top brand group company strongly supported by our own R&D team.
Low-voltage switchgear
Overview
GCKLVwithdrawable switchgearis alicableto thelwvltage distribution systemwithAC 5Hz, rated working oltage of 380V.tcontainspowercenter(PC)andmotorcontrolcenter(MCC)functions.Eachtechnicalparametermetsnatioal standardWithharateristifadvanced strtureattractivaperacehihltricerfmanhighrtt levelreliladafadmntasthddtritinevirlwltaweult metallurgy,petroleum, chemical, power, machinery and light weaving industries, etc.
The product accords with standards IEC61439,GB7251.1.
Type description
Features
^+ GCK1 and GCJl are assembled-type combined structures. The basic framework is assembled by adopting special bar steel;
^+ Cabinet framework,component dimensions and hole sizes change according to basic modulus E=25mm;
^+ IntheMCCprjct,cabinet sdivided intofive zones cmpaments):thhorizontalbuarzone,theverticaluba zone,thefunctionunit zonethecablecompartment,andtheneutralearthingbusbarzone.Eachzoneisisolated mutually forthe circuit'snormal running and effectivelyprevents fault expansion;
^+ Allstructuresof theframework areconnected andfastened bybolts,sothismethodavoids thewelding distortionand stress, and improves the precision;
^+ Components have strong universality,good applicability and a high degree of standardization;
^+ Insertion and extraction of thefunctionunit (drawer adopts lver-perated mechanism,which iseasy and reliable, especially with the application of rolling bearing.
Environmental conditions
aAltitude abovesealevel should notexceed 2000m;
）Ambientairtemperature: -15°C ~+40°\mathsf C andtheaveragetemperature \mathtt{s}+35°\mathsf{C} in 24h;
Atmospheric condition: air is clean,relative humidity is lower than 50% at +40°\mathsf C ,and higherrelativehumidity is allowed at lower temperatures,eg. 90% at +20°\mathsf C ，，
Places without fire,explosionrisk,serious pollution,chemical corrosion,and fierce vibration;
eTheinstallationgradientshouldnotexceed 5° 西
fThe control center is suitable for transportation and storing at the following temperatures: -25°C ~+55°C , in short time (within 24h),it should not exceed +70°\mathsf C ：
Themaintechnicalparameters
| Projects | Parameters |
| Protectionlevel | IP40, IP30 |
| Ratedworkingvoltage | AC,380 (M) |
| Frequency | 50Hz |
| Rated insulationvoltage | 660V |
| Working conditions | |
| Environment | Indoors |
| Altitude | ≤2000m |
| Ambient temperature | -5℃~+40℃ |
| The min.temperature under store and transportation | -30°℃ |
| Relative humidity | ≤90% |
| Capacityofcontrolmotor(kW) |
| Projects | Parameters | |
| Rated current (A) | ||
| Horizontalbusbar | 1600,2000,3150 | |
| Vertical busbar | 630,800 | |
| Controlconnectorofmaincircuit | 200, 400 | |
| Feeding circuit | 1600 | |
| Max.current | PC cabinet | 630 |
| Powerreceivingcircuit | MCC cabinet | 1000,1600,2000,2500,3150 |
| Rated short time withstand current (kA) | ||
| VirtualValue | 50,80 | |
| Peakvalue | 105, 176 | |
| Powerfrequencywithstand voltage (V/1min) | 2500 | |
GCS low-voltage
withdrawableswitchgear
Overview
TheGCSLVwithdrawableswithgear(hereinaftereferredtoasthedevice)wasdevelopedaccordingttherequirements of the industry'scompetent deparment,umerouselectricusersandthedesignunit by theoriginalstatemechanical department and the united design group of the power department. It conforms to national conditions and has a higher technical performance index,and adaptstothedemandsof powermarket development and isabletocompete with available imported products.
The device is applicable to the distribution systems of power stations, petroleum, chemical engineering,metallugy, weaving,andhigh-risebuiding industri.Ithelacesthathavehighautmaticityand eed computers tojoin, suhas large-scalepowerstationsandpetrochemicalndustrystemsitsthelw-oltagecomletedistribtionevicetha usedinthgenerating andpweruplysstmswiththre-haseC06,ratdworingvoltagef8,ratd current of 4o0A and below for distribution, motor central control, and reactive power compensation.
The device complieswith standards IEC61439 and GB7251.1.
Type description
