Power Distribution Transformer Supplier for Pole Mounted, Pad Mounted and Custom Projects
We are a transformer supplier to State Grid Corporation of China, the power grid company with the world’s most stable ultra-high-voltage technology and the largest power grid scale, whose transformer requirements are extremely strict.
Our products have been used by State Grid in high-salt-spray, high-humidity, corrosive and high-temperature coastal areas of Fujian, as well as in extremely cold regions of Heilongjiang. They have also been used in wind power and photovoltaic power station projects designed for a 25-year service life.
Many Fortune Global 500 companies have purchased our transformers. These products have not experienced any failures to date.
Our transformers have been exported to more than 100 countries and regions, including the United States, Canada and Europe. We have complete export qualifications and can provide OEM and ODM services for buyers in different countries.
Our factory is located in Jiangsu, China, and you are welcome to visit the factory in person to verify our real manufacturing capability, production process, quality control and testing conditions.
Our factory was established in 1993 and has 30 years of transformer manufacturing and export experience.
To fully understand your project requirements, please keep in contact with us as early as possible so we can help secure more valuable preparation time for your project production.
For faster review, send your drawing, nameplate photo, kVA rating, voltage, project country and required delivery time if available. If you are not sure, contact us first — we will guide you step by step.
Transformer manufacturing factory reference
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Transformer Manufacturing Factory Reference for Export Projects
This factory reference video helps overseas buyers verify real transformer manufacturing background before starting a quotation or supplier review.
TransformerGrid supports project-based communication for distribution transformer, pad mounted transformer, pole mounted transformer, oil-immersed transformer, dry-type transformer and custom power distribution projects. Buyers can send drawings, nameplate photos, voltage, kVA, project country, local utility requirements, test report needs, certification documents and delivery schedule for preliminary review.
- • Real transformer factory reference for buyer trust
- • Production capability for export transformer projects
- • Engineering communication before quotation
- • RFQ, documents and utility requirement review
Jiangsu Yawei Transformer Full Factory Video
This full English company video helps overseas buyers review Jiangsu Yawei Transformer’s manufacturing background, product scope, production capability, qualification document support and factory verification path before sending a serious transformer RFQ.
Use this video together with the About Us page, RFQ checklist and product pages when reviewing pad-mounted transformers, pole-mounted transformers, oil-immersed transformers, dry-type transformers, compact substations and custom transformer projects.
Full factory and company video for overseas buyers
Click to load YouTube. This long-form video is for supplier review, factory verification and RFQ confidence.
Three Phase Pad Mounted Transformer Video for RFQ Review
This product video helps buyers visually review a real three phase pad mounted transformer before sending drawings, nameplate photos or project requirements. It is a visual reference for technical communication, not a final specification sheet.
For quotation and engineering review, please confirm the destination country, local utility requirements, primary voltage, secondary voltage, kVA, frequency, loop-feed or radial-feed arrangement, BIL, impedance, protection devices, certification documents and delivery schedule.
- • Three phase pad mounted transformer exterior and compartment view
- • Outdoor substation and energy storage project reference
- • RFQ review for voltage, kVA, BIL and impedance
- • Utility requirement and certification document discussion
Real three phase pad mounted transformer for project review
Click to load the YouTube video. Use this product video as a visual reference before sending voltage, kVA, utility requirements and project documents.
Blog Articles
Español: Blog técnico para compradores de transformadores
- No. 1 Pole-Mounted Transformer Refurbishment vs Replacement: Cost, Risk and Decision Checklist
- No. 2 Pole-to-Pad Transformer Conversion Cost: Civil Work, Cable, Protection and Outage Checklist
- No. 3 Pole-Mounted Transformer Replacement: 9 Checks Beyond the Old Nameplate
- No. 4 Transformer Replacement Cost: Pole vs Pad Equipment, Removal, Installation, Testing and Downtime
- No. 5 Spare Transformer Standardization for Multiple Sites: Pole, Pad and Interchangeability Checklist
- No. 6 Pad-Mounted Transformer Noise: How to Specify Sound Limits, Review FAT Results and Avoid Site Complaints
- No. 7 It Passed FAT—So Why Was the Pad-Mounted Transformer Still Too Loud on Site?
- No. 8 How to Specify Pad-Mounted Transformer Sound Levels in an RFQ
- No. 9 Factory Sound Test vs Site Noise Measurement: What Transformer Buyers Often Compare Incorrectly
- No. 10 What Makes a Pad-Mounted Transformer Quiet? Core, Flux Density, Clamping and Tank Design
- No. 11 Where You Install a Pad-Mounted Transformer Matters: Distance, Walls, Pads and Vibration Paths
- No. 12 How to Evaluate a Transformer Manufacturer Before You Sign
- No. 13 UL, CSA & Beyond: Every Certification Your Transformer Manufacturer Must Show
- No. 14 FAT Reports: What to Ask For and How to Read Them
- No. 15 Export Track Record: What 99 Orders Across 26 Countries Actually Tell You
- No. 16 Factory Visit Checklist: 8 Zones That Separate a Real Plant from a Stage Set
- No. 17 18 Warning Signs When Choosing a Transformer Supplier — and What They Cost You
- No. 18 What Kills a Transformer: The Physics of Failure Every Procurement Manager Should Understand
- No. 19 DGA: The Blood Test Your Transformer Should Pass Before Shipment
- No. 20 Partial Discharge: The Silent Defect Hiding in Your FAT Report
- No. 21 Moisture: Why Water Destroys Transformer Insulation Faster Than Overload
- No. 22 Short-Circuit Withstand: The Test Most RFQs Forget—Until a Fault Proves Why It Matters
- No. 23 Insulation Aging: Why Two Identical Transformers Age at Different Speeds
- No. 24 How to Audit a Transformer Manufacturer Before Placing an Overseas Order
- No. 25 Transformer FAT Checklist: What Buyers Should Review Before Shipment
- No. 26 How to Read Transformer Routine Test Reports Before Approving Shipment
- No. 27 Red Flags in Transformer Type Test and Certification Documents
- No. 28 How to Compare Transformer Suppliers Beyond Unit Price
- No. 29 Drawing Approval Risks in Transformer Procurement
- No. 30 What to Include in a Transformer RFQ to Get Comparable Quotes
- No. 31 Pad-Mounted Transformer Failures: 8 Things Procurement Managers Must Check Before Signing the PO
- No. 32 The Oil Inside Your Pad-Mounted Transformer Is Aging — Here's How to Measure It
- No. 33 Pad-Mounted Transformer Real Cost: 30-Year Total Owning Cost
- No. 34 Pad-Mounted Transformers: Specifications, Drawings, Testing and RFQ Support
- No. 35 Pad-Mounted Transformer Environmental Protection: Coastal, Desert & Tropical Specification Guide
- No. 36 BIL & Impedance Demystified: The Two Numbers That Decide Whether Your Pad-Mounted Transformer Survives the First Lightning Storm
- No. 37 Copper vs Aluminum Windings — The $3,000 Savings That Cost a Mexican Factory $80,000 in 5 Years
- No. 38 The Pad-Mounted Transformer Buying Guide That Would Have Saved a Solar Farm $180,000
- No. 39 Loop Feed vs. Radial Feed: The $11,000 Bushing Nobody Asked For
- No. 40 Pad Mounted Transformer for the Philippines: Lessons from State Grid Fujian Coastal Projects
- No. 41 Transformer Service Life: Insulation Aging, Temperature, Load and RFQ Checks
- No. 42 Copper Windings in Pad-Mounted Transformers: Copper vs Aluminum Conductors and RFQ Checks
- No. 43 How Pad-Mounted Transformers Support Safe Underground Power Distribution
- No. 44 Transformer Bushing Reliability: Procurement, Inspection, Installation, Maintenance and RFQ Guide
- No. 45 European-Style vs American-Style Transformer Substation: Local Utility Requirements, Certifications and RFQ Guide
- No. 46 Pad Mounted Transformer Enclosure Design: Safety, Cooling, Corrosion Protection and RFQ Review
- No. 47 Transformer Oil Quality for Pad Mounted Transformers: Insulation, Cooling, Testing and Long-Term Reliability
- No. 48 Pad Mounted Transformer Approval Process: From Utility Requirement to Factory Production and Delivery
- No. 49 Pad Mounted Transformer Utility Requirements: Local Grid Approval, Standards, Documents and RFQ Review
- No. 50 Pad Mounted Transformer Cable Entry Direction: HV/LV Compartments, Bottom Entry and RFQ Layout Guide
- No. 51 Pad Mounted Transformer Site Planning: Clearance, Safety Protection, Cable Entry and Future Expansion
- No. 52 Pad-Mounted Transformer Guide: Types, Components, Applications and Installation
- No. 53 Pad Mounted Transformer Winding Material: Copper, Aluminum and Copper-Aluminum RFQ Guide
- No. 54 Pad Mounted Transformer Technical Data Sheet: Nameplate, BIL and Impedance RFQ Guide
- No. 55 Pad Mounted Transformer Technical Data Sheet: Nameplate, BIL and Impedance RFQ Guide
- No. 56 Pad Mounted Transformer Protection and Grounding Guide: How Lucas Reviewed Bayonet Fuse, ELSP Fuse, Surge Arrester and X0 Grounding Before RFQ
- No. 57 Pad Mounted Transformer Oil and Insulating Fluid Guide: How Clara Reviewed Mineral Oil, PCB-Free Requirements, Oil Level and Maintenance Before RFQ
- No. 58 Pad Mounted Transformer Tap Changer Guide: How Adrian Reviewed Utility Voltage Fluctuation Before RFQ
- No. 59 Pad Mounted Transformer Testing Documents and Factory Inspection: How Elena Verified Quality Before Shipment
- No. 60 Pad Mounted Transformer RFQ When Drawings Are Not Ready: How Sophie Started with Equipment kW, Project Country and Future Solar Planning
- No. 61 Pad Mounted Transformer Losses and Operating Cost: Oliver's No-Load and Load Loss Guide
- No. 62 Pad Mounted Transformer for Hot Climate and Tropical Projects: How Nora Reviewed Ambient Temperature, Temperature Rise and ONAN Cooling Before RFQ
- No. 63 Pad Mounted Transformer BIL and Impedance: How to Confirm Insulation Level and Fault Current Before RFQ
- No. 64 Pad Mounted Transformer and Cast-Resin Dry-Type Transformer for Electronics Manufacturing: How Amelia Matched Cleanroom Safety, Power Reliability and Expansion Needs
- No. 65 Pad Mounted Transformer for Pharmaceutical Manufacturing Plants: How Natalie Protected GMP Cleanrooms, Cold Chain Storage and Validation Schedule
- No. 66 Pad Mounted Transformer for Food Processing Plants: How Isabella Reduced Production Loss Risk with Dual Power, Rooftop Solar and 10kV Step-Up Planning
- No. 67 Pad Mounted Transformer for Airports and Transportation Hubs: How Claire Planned Reliable Terminal Power Before Expansion
- No. 68 Pad Mounted Transformer for University Campuses: How Hannah Planned Dormitories, Labs, Protection Relays and Rooftop Solar Power
- No. 69 Pad Mounted Transformer for Ports and Cold Storage: How Marina Planned Reefer Loads, Coastal Power and 35kV Step-Up Connection
- No. 70 Pad Mounted Transformer Compartments and Accessories: How Eric Confirmed RFQ Requirements Before Ordering
- No. 71 Pad Mounted Transformer Dimensions and Concrete Pad Planning: How Laura Avoided Site Rework Before Installation
- No. 72 Pad Mounted Transformer Lead Time: How Maya Prepared Early Before Final Drawings Were Ready
- No. 73 Pad Mounted Transformer for Apartment Complexes: How Daniel Planned Safe Underground Power Before Occupancy
- No. 74 Delta and Wye Transformer Connections: How Victor Avoided a Wrong Pole or Pad Transformer Specification
- No. 75 Delta and Wye Transformer Connections: Vector Group and RFQ Guide
- No. 76 Step Up or Step Down Transformer? How Nina Confirmed Voltage Direction Before Ordering a Pole or Pad Transformer
- No. 77 Pad Mounted Transformer for Cold Storage Warehouses: How Henry Protected Refrigeration Loads and Planned a 10kV Solar Step-Up System
- No. 78 Pad Mounted Transformer for Cold Storage Warehouses: How Henry Protected Refrigeration Loads and Planned a 10kV Solar Step-Up System
- No. 79 State Grid Heilongjiang Transformer Supply Reference: Extreme Cold, Winter Reliability and Power Distribution Requirements
- No. 80 Hospital Distribution Transformer Procurement Guide: How Emma Planned Reliable Power, Pad Mounted Transformer and Rooftop PV Step-Up Connection
- No. 81 Hospital Distribution Transformer Procurement Guide: How Emma Planned Reliable Power, Pad Mounted Transformer and Rooftop PV Step-Up Connection
- No. 82 Pole Mounted Transformer Replacement Guide | Nameplate Photo & RFQ Review
- No. 83 Pole Mounted Transformer Replacement Guide: How Michael Used Old Nameplate Information to Avoid Buying the Wrong Transformer
- No. 84 Pole and Pad Mounted Transformers for Hot Desert Projects in the UAE: How Karim Reduced Heat, Dust and Delivery Risk
- No. 85 State Grid Fujian Transformer Supply Reference: Coastal Humidity, Salt-Rich Environment and Reliability Requirements
- No. 86 Pad Mounted Transformer for Hotels and Resorts: How Sofia Protected Guest Experience and Power Reliability
- No. 87 Pad Mounted Transformer for EV Charging Stations: Rachel's Capacity Planning Guide
- No. 88 Pole and Pad Distribution Transformer for Municipal Infrastructure: How David Prepared Emergency Stock Before Failures Happened
- No. 89 Pole and Pad Mounted Transformer Supplier for European Distributors: How Noah Built a Safer Product Line
- No. 90 Pole and Pad Mounted Transformer Supplier for European Distributors: How Noah Built a Safer Product Line
- No. 91 Pad Mounted Transformer for Data Centers and AI Power Loads: How Grace Reduced Uptime Risk Before Ordering
- No. 92 Step Up Transformer for Solar and Wind Projects: How Aisha Matched Grid-Connection Requirements Before Ordering
- No. 93 Step Up Transformer for Solar and Wind Projects: How Aisha Matched Grid-Connection Requirements Before Ordering
- No. 94 Step Up Transformer for Solar and Wind Projects: How Aisha Matched Grid-Connection Requirements Before Ordering
- No. 95 Transformer Replacement Checklist for Electrical Contractors: How Liam Avoided Delays in Coastal Storm Projects
- No. 96 Three Phase Transformer for Industrial Loads: How Marcus Reduced Downtime Risk with the Right Pole or Pad Solution
- No. 97 Three Phase Transformer for Industrial Loads: How Marcus Reduced Downtime Risk with the Right Pole or Pad Solution
- No. 98 Three Phase Transformer for Industrial Loads: How Marcus Reduced Downtime Risk with the Right Pole or Pad Solution
- No. 99 Utility Transformer Procurement: How Olivia Verified Pole and Pad Transformers Before Batch Delivery
- No. 100 Utility Transformer Procurement: How Olivia Verified Pole and Pad Transformers Before Batch Delivery
- No. 101 25 kVA Transformer Price: Cost Factors, Voltage Options and Fast Delivery Checklist
- No. 102 25 kVA Transformer Price: Cost Factors, Voltage Options and Fast Delivery Checklist
- No. 103 500kVA Pad Mount Transformer: Price Factors, Applications and Quotation Checklist
- No. 104 Coastal Corrosion Protection for Pole & Pad Mounted Transformers | Buyer Guide
- No. 105 Coastal Corrosion Protection for Pole & Pad Mounted Transformers | Buyer Guide
- No. 106 Pole Mounted vs Pad Mounted Transformer: Cost and Application Guide for Utility, Farm, Commercial and Industrial Projects
- No. 107 Single Phase Pole Mounted Transformer Explained: Primary Voltage, Line-to-Line vs Line-to-Neutral, and Quotation Guide
- No. 108 Winter Failure Analysis for Pole Mounted Transformers: Causes, Warning Signs, and Prevention
- No. 109 Backup Pole Mounted Transformer for Mining Sites: How Diego Prevented a Costly Shutdown
- No. 110 Before Ordering a Pole Mounted Transformer: Buyer Guide
- No. 111 EPC Transformer Procurement: How Chandler Chose Pole Mounted or Pad Mounted Transformers Without Delaying the Project
- No. 112 EPC Transformer Procurement: How Chandler Chose Pole Mounted or Pad Mounted Transformers Without Delaying the Project
- No. 113 Farm Transformer Guide: How Sam Chose the Right Pole Mounted or Pad Mounted Transformer
- No. 114 Pad Mounted Transformer for Commercial Buildings: How Ethan Chose a Supplier Trusted by Strict Utility Buyers
- No. 115 Pad Mounted Transformer for Commercial Buildings: How Ethan Chose a Supplier Trusted by Strict Utility Buyers
- No. 116 Pad Mounted Transformer for Commercial Buildings: How Ethan Chose a Supplier Trusted by Strict Utility Buyers
- No. 117 Pole Mounted Transformer Replacement: How Carlos Avoided Coastal Corrosion Risk and Installation Delays
- No. 118 Step Up Transformer for Solar and Wind Projects: How Aisha Planned Grid Connection and Temporary Power Early
- No. 119 Step Up Transformer for Solar and Wind Projects: How Aisha Planned Grid Connection and Temporary Power Early
- No. 120 The Hidden Reliability Detail in Pole Mounted and Pad Mounted Transformers: High-Strength Internal Fasteners