TRANSFORMINGTHE FUTUREOFPOWER

Transformer, Switchgearand Electrical PowerSolutions

GUANGDONG ZHONGPENG ELECTRICITYCO.,LTD.

CONTENTS

01 Company Profile P01
02 Sustainable Development P05
03 Products P07
04 Service Systems P21
05 Application Cases P23

CSZEPO

COMPANY INTRODUCTION

Technological Leadership

Invitedtocontributetointernationalstandardization conferences(IEE/IEC)
AkeyfigureindomestictechnicalstandardsofNatural EsterTransformer.
Equippedwithadual-temperatureaging
laboratory,whichcanactuallysimulatetheagingprocess of theinsulationsystem.
Having Overload-Capable Transformer technology.
Guidedbyintelligenttechnology,the companydevelops integrated powerdistributionsolutions.

Market Performance

Asalong-termpreferredsuppliertobothSouthernPower Grid and State Grid.
Our company has consistently ranked among the top bidders for many years.
We also maintain solid partnerships with leading enterprisessuchasYD,CHNENERGY,andSHE.

Development Milestones

2010 EAR 2015 YEAR 2020 YEAR 2023YEAR 2025 vEAR
0 0 0 0 0
Our company was Established China's Joined the National Continue to advance Committed1.6 billion
founded with the vision first High-Temperature Technical Committee research in digital RMB through adedicated
to "Soar Across China" Resistant Energy-Saving for Standardization of powerdistribution project signing to build a
in its development. Power Equipment Transformers technologiesand state-of-the-artsmartEngineering Technology becomea partnerin digitalfacility. Research Center. the Dianhong Ecosystem. 0 0 0 0 Obtained National High- Participated in CollaboratedwithXi'an Successfully acquired Tech Enterprise IECTechnical Jiaotong Universityto a new site for the certification. Committee14 establish the Advanced Energy Storage Base. (Transformers) Power Distribution Technology Innovation #新技术企业 Center # 2013 YEAR 2018 YEAR 2022 YEAR 2024 YEAR

A Standard of Excellence

World-ClassSolutions Poweredbya Dedicated Team

At Zhongpeng Power Equipment,we pride ourselves on delivering world-class transformer and electrical equipment solutions.

The key to our success is the ability to provide quality products with speed and precision through the dedication ofour talented team.

We're more than justa manufacturer,we're shaping the future of energy.

Digital Power Demonstration Plant

Introduction

An automated production line-centered on stacking, castingand curing，and final assembly-integrates intelligent logistics and digital management to achieve full-process,closed-loop intelligent manufacturing,boasting an annual production capacity of3billionunits.

3BillioNAnnual production capacity UL/CSAcertified MemberoftheIEC InternationalElectrotechnical Commission

Hardware System Construction

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Core Equipment Full-process high-precision manufacturing

SmartWarehouse High-densityautomated storage&retrieval

SmartLogistics Flexible unmanned materialflow

Software and Intelligent Control Systems

Delivery Date

SUSTAINABLE DEVELOPMENT

ULCSACertification

Product Carbon Footprint ManagementSystemCertificate

Eco-design Product Certification

ULCertification

Zhongpeng upholds green development by advancing environmental protection through the research and development of eco-friendly products,enhancing resource eficiency,and optimizing energy and waste management.The company is committed to reducing emissions,focusing on the entire lifecycle carbon footprint of its products,and has obtained both environmental management system and carbon footprint certifications.Through charitable,educational,and environmental initiatives,Zhongpeng gives back to society.It embraces a people-oriented philosophy,safeguards employee rights and well-being,fosters an inclusive atmosphere,and promotes mutual growth for both employeesand the enterprise.

Oil Type Transformer

Oil-type transformers (oroil-immersed) are electrical units usingmineral oil, silicone fluid,or natural/synthetic esters forinsulation and cooling.They are ideal for high-voltage transmission,distribution,and substation applications, offeringsuperiorheatdissipationand higher powerratings (up to 3oMvA+orhigher) compared to dry-type options

KeyFeaturesandBenefits

Insulation& Cooling:The core and coilsare immersed in oil, providing excellent dielectricinsulation and transferring heat away from the internal components.

High Efficiency:Superior heat dissipation allows for larger power capacities and better overload performance.

Outdoor Applicability:Typically designed for outdoor use, including pole-mounted or ground-level substation applications.

Longer Life:Proper maintenance of the insulating oil helps prevent oxidation and corrosion,extending the transformer's lifespan.

Oil-type transformers

Rated Power:Typically50kVAup to30MVA Voltage Levels:Primaryvoltageup to 69kV Secondaryvoltage 0.4kV/0.69kV

Key Components

Transformer Oil:Can be mineral oil (most common),silicone fluid,or biodegradable esters.
Core and Windings:Laminated steel core and copper/aluminum windings submerged in oil.
Conservator:A tank holdingextra oil that allows for expansion and contractionwith temperaturechanges.
Buchholz Relay:Detects gas buildup from faults,providing safety againstinternalissues.

INNOVATINGFOR ASMARTERFUTURE

Service Coverage & Flagship Products

Zhongpeng Electric was founded in 2010,specializing in the production of technologically advanced and environmentally friendly power distribution equipment. Beginning with the manufacturing of cast resin dry-type transformers,we later expanded into developing complex medium-voltage switchgear and new energy storage compact substations. Throughout our growth， we have maintained a customer-centric approach while pursuing sustainable development.Today,we serve clientsacrossNorthAmerica,the Middle East,SoutheastAsia,andbeyond.

A three-phase pad-mounted transformerisa ground-level electrical distribution unit housed ina tamper-resistant,lockable steel cabinet. It is primarily used to step down medium-voltage electricity (typically 15kVto 35kV) to lower levels (such as120/208V or 277/480V) for commercial,industrial,and residentialapplications

ThreePhase Pad MountedTransformer

Ratings:45kVAto10,000kVA

PrimaryVoltages:2,400Vto46,000V

Key Features&Design

Tamper-ResistantEnclosure:Thelocked metalcabinet preventsunauthorizedaccessand protects internal components from weather,makingitsafe for publicareas like sidewalksand parks

Fluid-lnsulated:MostunitsareoifilldforcoolingandinsulationftenusingmineraloilorodegradableesterflidslieFR3 for enhanced fire safety.

Front-Access Compartments:High-voltage (HV)andlow-voltage(LV)sectionsareclearlyseparatedforsafetyandaccessiblevia front doors for maintenance.

Feed Configurations

RadialFeed:PowerarrvesfromasinglesourceviathreeHVbushings.Itissimplerandmorecost-efectivebutlacksredundancyi the source fails.

LoopFeed:FeaturessixHVbushingstoalowpowertocirculateinaloop.Thisprovidesredundancyallowingformaintenanceo repairswithoutserviceinterruptions.

Common Applications

Commercial&Industrial:Shoppngmals,oficecomplexes,factories,andwarehousesrequiringstablepowerforlargemotors and HVAC systems.

odern Infrastructure:Datacenters,EVchargingstations,andrenewableenergysiteslikesolarorwindfarms.

PublicServices:Hospitals,schools,andtransportationhubswherereliableundergrounddistributionispreferedforaesthetic: and safe

Single Phase Pole-Mounted Transformer

Capacity:From5kVA to 500 kVA Primaryvoltages:up to 34.5kV

Asingle-phase pole-mounted transformer isa distributiontype electrical device used to step down high distribution voltages to lower utilization levels,most commonly for residential and light commercial use.These units are typically oil-filled and mounted high on utility poles to save ground space and maintain public safety by keeping live parts outof reach

Core Components

Magnetic Core:Madeof laminated silicon steel to providea low-resistance path for magneticflux.
Windings:Copper oraluminum coils that transfer energy via electromagneticinduction.
Tank:A sealed,corrosion-resistant steel enclosure (often finished in ANSl 70 gray) that houses the core,windings,and oil.
Bushings:Porcelain or polymer insulators that connect internalwindingsto external overhead lines.
Useful Life:With regular maintenance (checking oil levels and bushingcondition),theseunits typicallylast25 to40 years.

Asingle-phase pad-mounted transformer isa ground-level,liquid-filled distribution transformer housed ina tamper-resistant steel cabinet. It is primarily used in underground power distribution systems to step down medium-voltage electricity(e.g.,13.8kVor34.5kV)to low-voltage power(typically120/24ov) for residential homes and small commercial buildings.

KeySpecifications&Features

Radial Feed: Connected to a single power source at the end ofa line. Loop Feed:Connected to two different power sources,allowing for redundant power supply and easier maintenance without outages.

CoreApplications

Residential Neighborhoods:Providing safe,quiet power to single-family homes and subdivisions while maintaining neighborhood aesthetics by avoiding overhead lines.

Light Commercial: Serving small retail outlets,strip malls,and schools. Underground Systems:Essential where zoning or practical constraints prohibit pole-mounted transformers.

Single Phase Pad Mounted Transformer

Safety&Maintenance

Public Safety:Units feature tamper-resistant lockable doorsand "deadfront" designs to prevent accidental contact with live high-voltage components.

-Capacity:Up to 167 kVA Voltage: Up to 34.5 kV

Required Clearances:Utility crews typically require10 feetofclearancein front of the opening side and 3-5 feet onall other sides for safe access and ventilation.

Routine Maintenance:Includes periodic visualinspections for oil leaks or corrosion,infrared scanning for hot spots,and testing of insulating fluid quality.

Anamorphous alloy oil-immersed transformer isa high-efficiency power distribution unit using Fe-based amorphous metal cores rather than traditional silicon steel.It offers 7 0 { - } 8 0 % lower no-load losses,high energy efficiency,and reduced carbon emissions,making it ideal for sustainable power grids.These units typically feature reduced temperature rise and enhanced overload capacity.

Three Phase Oil Immersed Distribution Transformer

Rated capacity:30-3000kVA Ratedvoltage:10kV-35kV

Key Advantages:

Low Energy Loss: By using amorphous alloy,no-load losses are significantly lowered (up to 8 0 % compared to conventional silicon steel).

EnergyEfciency:These transformers meethigh energyefficiencystandards(e.g.,S15,S21,S25series).
EnvironmentalImpact: Lowerenergy consumption leads to reduced and emissions.

Enhanced Performance:They feature low noise operation,strong resistance to short circuits,and strong lightning surge resistance.

Maintenance&Life:Lowoperatingtemperatures(lowtemperaturerise)reduceinsulationaging,extendingservicelife.

Applications&TechnicalAspects:

Core Material: Iron-based amorphousalloy (no crystal structure,high resistivity).
Oil-lmmersed: Offers reliable cooling and insulation.
Primary Usage:Distributionofelectricalpowerin industrial,commercial,andinfrastructureapplications.

DryType Transformer

Cast Resin Transformersare high-safety,dry-typetransformers with windingsencapsulatedin epoxyresinunder vacuum, oferingsuperiormechanicalstrength,moistureresistance,andfiresafety.Theyreidealforharsh,ndoor,orhgh-density areas (substations,buildings)duetobeing maintenance-free,environmentallfriendly,andself-extinguishing.

Cast Resin dry type transformer

PowerCapacity:30-16000kVA Voltage Level:10KV,20KV,35KVorOthers

KeyBenefitsofCastResinTransformers

Safety&EnvironmentalFriendliness:Theyarenon-flammableandself-extinguishing,reducingfirerisks.Theyposenoriskofoil leaks,making themsuitable for eco-sensitive areas.

DurabilityinHarshEnvironments:Encapsulatedinepoxyresin,thewindingsareresistantodust,humidityandchemical contaminants.

Low Maintenance:Theyrequirevirtuallynomaintenancecomparedtooil-flledtransformers,oftenneedingonlyvisual inspections.

HighPerformance&OverloadCapacity:Theyoferhighshort-circuitstrengthduetothesolid,robustwindings.Theyalsohavea high tolerance foroverload.

Cost-Effectivelnstallation:Theircompactdesignallowsforindoorinstallationclosertotheload,savingoncablingcostsand eliminating the need for fireproofvaults.

Reduced Noise:These units tend to be quieterand produce lower vibrations.

VPl transformers are an excellent alternative in applications which call foran environmentally friendly, economicalsolution.

They reduce flammability concerns,require less maintenance,and are less prone to contaminating the surroundingenvironmentthanoil-filled transformersavoiding the need for oil containment during construction.

VPITransformers

Capacity:Upto3150kVA Voltage: Up to 10 kV

Key Featuresand Benefits

InsulationSystem:Windingsaretreatedwithpolyestervarnishandthencuredinanoventocreateasolidinsulationbond.
Robust Performance: High mechanicalstrength allowsthem towithstand significantelectromagnetic forces.
Environmentally Friendly: Nooil means no risk of contamination or major fire hazards.

DesignFlexibility:Availableinaluminumorcopperwindings,withvoltageratingsupto34.5kV,suitedforhigh-risebuildigsand data centers.

Low Maintenance:Suitablefordustyordampenvironments,especiallywhenenhancedwith Vacuum Pressure Encapsulation (VPE).

Common Applications

VPItransformersare frequently used in: Industrial Plants:Mining,petrochemical,and manufacturing facilities.
Commercial Buildings: Hospitals,schools,and malls requiring low-noise,safe power.
Energy&Infrastructure:Offshorewind farms,metro stations,and substations.
RectifierSystems: Powering DC loads in industrial settings.

VPlvs.CastResin

Whilebotharedry-type,VPltransformersaregenerallymoreeconomicalandeasiertorepairthancastresinunits,makingthem ideal for projects balancing cost and durability.

Amorphouscastresindry-typetransformersarehighlyeficient,eco-friendlyunitsusingamorphousalloycores toreduceno load losses by up to 7 0 { - } 8 0 % compared to conventional silicon steel.Encapsulated in epoxy resin,they offer superior moisture resistance,firesafety,andlownoise,makingthemidealforhigh-humidity,urban,andhigh-safetyenvironments.

Amorphouscastresin dry-type transformers

Capacity Range:100-2500 kVA VoltageLevels:6,10,11,20,35kV

Key Features&Advantages

Energy Efficiency:Amorphousalloy material significantlylowers no-load lossand eddy currentlosses. Safety&Environment:Non-flammable,self-extinguishing,andenvironmentallfriendlysuitableforfire-proneorheavily populated areas (e.g.,high-rises,hospitals,subways). LowMaintenance:Castresin insulationprotectsagainstmoistureand contaminants,reducing maintenanceneeds. Robustness:Strong,shock-resistant,and capableof high overload capacity(110%-150% with fancooling)

CommonApplications

Urban underground and high-rise buildings.
Airports,stations,and industrialenvironments. Power plantsand sensitive,humid areas.
Common Technical Specifications
Core Material:AmorphousAlloy Metal.
Insulation:Cast Epoxy Resin.
Insulation Class:Class For H.
CoolingMethod:AN (AirNatural) orAF(Air Forced)

TransformerSubstation

Distribution substationsareessentialcomponentsof electricalpowernetworks,ensuringreliablepowerdistribution.Our distribution substation is a comprehensive power supply unit designed for 3-phase AC 5 0 mathsf { H z } systems with a maximum rated capacityof16oo KVA.Itis widelyutilized invariousapplications,including industrialand miningenterprises,residential areas,hospitals,shopping malls,and high-rise buildings.

Distribution substations

Rated Voltage:Typically covers medium voltage levels (e.g.,6kV,10kV,24kV,33kV,35kV) to lowvoltage(e.g.,0.4kV)
Capacity (kvA): Small ( < 5 0 0 ) ,Medium (500-2,000),Large(2,000-10,000),Very Large(>10,000)

INNOVATINGFOR ASMARTERFUTURE

ProductInformation

Fully functionaland reliable

Less investment,less land occupation,quick effect

Theproductadoptsacloseddesignasawhole,theshellcanbegrounded,andnoinsulationdistanceisrequired,whichfully guarantees personalsafety.
Thetransformerroomcan beequippedwithaprotective net to preventaccidentalentryintothe transformerroom. Excellent temperature rise and heat dissipation design
Theshelladoptsaspecialventilationstructure,andtheoptimizeddesignmakestheproducthaveastrongerheatdissipation capacity.Thetemperatureriseleveloftheshellmets therequirementsofthehighestlevelof1OKspecifiedbythenationalGB standard and the internationalIEC standard.

Excellent environmentaladaptability

Provideavarietyfshellsfouserstoooeincdingodiaryteeateellompoiteplateelltainssteelate

Rich structure and flexibility OperatingConditions

1.Altitude:No more than 1oo0 meters
2.AmbientTemperature: - 2 5 ^ { \circ } C to + 4 0 ^ { \circ } \mathsf C （20
3.Relative Humidity: Daily average not exceeding 9 5 % ,monthly average not exceeding 9 0 % （204号
4.Maximum Monthly Average Temperature: + 3 5 ^ { \circ } C （20
5.Maximum Annual Average Temperature: + 2 0 ^ { \circ } C （204号
6.Minimum AmbientTemperature: 2 5 ^ { \circ } \mathsf { C } (outdoor)
7.Maximum Diurnal Temperature Difference: 2 5 ^ { \circ } C （204
8.SunlightIntensity: 0 . 1 \mathsf { W } / \mathsf {cm } ^ { 2 } \left( 0 . 5 \mathsf { m } / \mathsf { s } \right) （204
9.Seismic Resistance:EN 1998-1(Horizontal Acceleration 0.3g)
10.Installation Location:Freefromseverevibration,corrosive gases,explosive media,and heavydustpolltion
11.ApplicableAreas:Widelyapplicabletourbanpowergridtransformation,residentialcommunities,industrialparks,
commercialcenters,municipalprojects,andnewenergyprojects (suchaswind powerand photovoltaicpowergeneration).

Medium-and Low-Voltage Switchgear

KYN28A-12 (also known as GZS1) is a widely used indoor metal-clad withdrawable switchgear designed for 3-phase AC 50/60Hz power systems witha rated voltage of12kV.Itis primarilyutilized inpowerplants,substations,and industrial/mining facilities for thedistribution of electrical energy,as well as the control and protection of electrical circuits.

KYN28A-12 (also known as GZS1)

Rated Voltage:3.6 kV,7.2kV,12 kV Rated Frequency:50 Hz(or 60 Hz)

Our gas-insulated ring main units are the ideal choice for power distributionapplications.This set can maintain excellent arc-extinguishing performance while also providing the optimal dielectric strength,which significantly enhances safety performance.Customersusuallydo so based on space limitations to choose a gas insulation solution.

The XGN15-12 Fixed AC High Voltage Metal-Enclosed Switchgear

Capacity:Up to 31.540 kA Voltage:Up to12kV

INNOVATINGFOR ASMARTERFUTURE

GCK low-voltage drawout switchgear isa versatile power distribution system used in industrial, mining,and high-riseapplications,typically rated up to 69oVAC,50/60Hz,and currents up to 5000A

Itswithdrawabledesign allowssafe,fast maintenance with modular compartments, reducing downtime.

GCK low-voltage drawout switchgear

:Rated Insulation Voltage:69oV/1000V :Rated OperationalVoltage:40oV,60ov (up to 690V)

The RM6 SF6 gas-insulated switchgear,utilizing sulfur hexafluoride for high safety and reliability,offersa compact and modular design ideal for space-limited applications and ring network systems.It ensures easy combination of units for diverse needs with minimal maintenance,making it suitable for power systems.

The RM6 SF6 gas-insulated switchgear

RatedVoltage:12kV,17.5kV,or24kV.
Rated Current(Busbar):630A/1250A.

GGD Low-Voltage Switchgear (also known as the GGD fixedmounted switch cabinet) is a standardized AC low-voltage power distribution cabinet.It is primarily used for energy conversion, distribution,and control in power systems operating at 5 0 / 6 0 ~ \mathsf { H z } （204 with a rated voltage of 38ov (up to 66ov) and rated currents up to 3150A(with somevariantsup to 5000A

GGD Low-Voltage Switchgear (also known as the GGD fixed-mounted switch cabinet)

PV-ESS Power System

PrefabricatedTransformer Substation

Rated Power:Typically rangesfrom 50kVA up to1600kvA(common) orup to 2500 kVA+ Primary Voltage (HV): Up to 40.5 kV(often 11 kV,12 kV,24 kV,or 36 kV)

Aprefabricatedtransformersubstation(alsoknown asacompactorunitizedsubstation)isa factoryassembled,tested,andready-to-installunit integratinghigh-voltageswitchgear，atransformer, andlow-voltageequipment.Designedforfast deploymentandspaceefficiency，theyareidealfor urban,industrial,and temporarypowerdistribution, oftenreducingfootprinttooftraditionalsubstations.

KeyFeaturesandAdvantages: Rapidlnstallation:Deliveredasacomplete,pre-wiredunit,requiringonlyplacementandfinalconnection. CompactDesign:ldealforrestrictedareas,citycenters,parks,andresidentialneighborhoods. SafetyandDurabilityEnclosedindurablesteelorconcreteshelsIP23IP54)thatarefire-resistantandcorrosio-proof. EnvironmentalSuitability:Designedforharshconditions,withstandingtemperaturesfromto Cost-Effective:Lowerlaborandconstructioncostscomparedtoconventionalsubstations.

CommonApplications: Urbanresidentialareasandcommercialcenters.
Industrialfacilitiesandminingoperations.
Renewableenergyprojects(wind/solarfarms).
Temporarypowerforconstructionsitesanddocks. MainComponents:
MediumVoltage(MV)Switchgear:Typicallyupto36kV/40.5KV Transformer:Oil-typeordry-type transformer(e.g.,
100KVAto1250KVA orhigher).
LowVoltage(LV)Switchgear:Forenergydistribution

INNOVATINGFOR ASMARTERFUTURE

Enery Storage Power Substation

Capacity Range:Commonly 5 0 0 \mathsf { k V A } to 3150kVA,scalable forlarge-scale solar farms RatedVoltage:HighVoltage(HV)11kV-33kV; Low Voltage(LV) 0.4kV-0.69kV.

An energy storage power substation integrates largescale battery energy storage systems (BESs) directly into electrical substations to store excess energy, stabilize the grid,and provide backup power. These systems connect at various voltage levels (MV/HV) to manage renewable variability,replace peakerplants, and reduce infrastructure investment

Energy Storage Substation

An energy storage substation combines traditional electrical infrastructure with large-scale battery energy storage systems (BEsS),acting asa gridconnected hub forchargingand dischargingelectricity. These facilities stabilize the grid,manage peak demand,support renewable integration,and improve reliability.

SERVICESYSTEMS

Service Creed

Sales Network

The company boasts a comprehensive sales and service network,with operations spanningacross the nation and extending to overseas markets.

projects.

country.

APPLICATIONCASES