OEM/ODM High Voltage Exporter & Exporters

Precision-Engineered Transformers, Switchgear, and High Voltage Substation Components for Global Power Grids

Featured Product Portfolio

High Voltage Electrical Infrastructure Equipment

Custom OEM/ODM manufacturing standards meeting IEC 60076, IEEE C57, and ISO9001 global engineering requirements.

S22 Three Phase Oil Immersed Power Transformer

S22 Three Phase Oil Immersed Power Transformer 10kV 0.4kV 50Hz high voltage Boosting Transformer Suitable For Power Grids

High Voltage Surge Protection Lightning Arrester

High Voltage Surge Protection Lightning Arrester 35KV MV&HV Overhead Power Line Polymer Technology Anti-pollution arrester

S11-M 500kVA Oil Immersed Power Transformer

S11-M 500kVA 10kV 0.4kV Pure Copper Winding Oil Immersed Power Transformer

JDZW-35R Outdoor Epoxy Cast High Voltage Voltage Transformer

JDZW-35R Single Outdoor Epoxy Cast High Voltage Voltage Transformer Metering Protection Dual-Winding Toroidal Coil Copper VT

Air Core Flat Copper Foil Coil

Air Core Flat Copper Foil Coil Custom Winding High Current For New Energy Car OBC On-Board Charger CE RoHS Low DCR High Power

Electric Very High Voltage Circuit Breaker Reclosers

Electric Very High Voltage Circuit Breaker Reclosers Enhance System Reliability and Efficiency

EE65 Pulse Transformers With High Voltage Bobbin

EE65 Pulse Transformers With High Voltage Bobbin

500KVA 25KV Flame Retardant Oil Immersed Transformer

500KVA 25KV Flame Retardant Oil Immersed Transformer CE Listed High Insulation Safety for Power Distribution

40+ Years Engineering Excellence
400k+ Custom OEM/ODM Configurations
100% Full Burn-in & Impulse Testing
95+ Countries Export Network
Enterprise Core Capabilities

Premier OEM/ODM High Voltage Manufacturing Rigor

As a leading premier OEM/ODM High Voltage exporter & exporters, our manufacturing ecosystems combine fully vertically integrated design with sophisticated electrical engineering. Operating decades of dedicated high-voltage power processing development, we bridge the complex gap between custom client engineering requirements and global utility grid reliability standards.

Unlike standard equipment assemblers, our vertically integrated manufacturing facility oversees every phase of high-voltage component fabrication. From automated magnetic core stacking, vacuum pressure impregnation (VPI), and precision epoxy resin casting, to fully shielded partial discharge testing chambers—our end-to-end operational control ensures that every transformer, circuit breaker, surge arrester, and custom coil exhibits uncompromising dielectric strength and long-term operating efficiency.

Current-Fed Engineering Topology

Advanced power conversion utilizing current-fed inductors for natural short-circuit immunity, fault current isolation, and high voltage stability under dynamic grid loads.

In-House Magnetics & Casting

Complete control over coil winding, flat copper foil geometry, toroidal cores, and APG (Automatic Pressure Gelation) resin casting for void-free insulation.

Rigorous Quality Protocols

Every exported unit undergoes full-power thermal run-up tests, lightning impulse withstand verification, and automated dielectric breakdown analysis prior to dispatch.

Information Gain Insight: Modern medium-voltage (MV) and high-voltage (HV) distribution networks demand low core-loss performance (exceeding EU Tier 2 Eco-design and IEEE C57 standards). Our specialized S22 and S11-M series transformers utilize high-permeability grain-oriented silicon steel cores, cutting no-load power dissipation by up to 28% compared to conventional distribution units.

Industry Whitepaper

Future Procurement Trends in High Voltage Electrical Infrastructure

The global transition toward decentralized renewable energy, massive electrification of transport systems, and energy storage infrastructure is fundamentally changing high-voltage equipment procurement priorities for utility companies, EPC contractors, and industrial conglomerates.

1. Shift Toward Eco-Friendly & Synthetic Ester Dielectrics

Environmental regulations (such as EU F-Gas restrictions and stringent local environmental protection standards) are accelerating the replacement of traditional mineral oils with high-fire-point synthetic ester fluids. Flame-retardant oil-immersed transformers (such as our CE-listed 500KVA 25KV series) provide self-extinguishing safety properties (K-class fluid, fire point >300°C), making them ideal for high-density urban substations, offshore wind platforms, and underground mining operations.

2. Solid-State Smart Grid Integration & Digital Instrument Transformers

Substation digitizing standards (IEC 61850) require current and voltage transformers (CT/VT) to deliver exceptional linearity across ultra-wide dynamic ranges. Outdoor epoxy cast VTs, such as the JDZW-35R series, incorporate precision dual-winding toroidal coils designed for both revenue-grade metering protection and seamless optical interface integration into smart grid SCADA architectures.

3. EV Fleet Electrification & Ultra-Fast OBC Components

With high-power DC fast-charging networks operating at 800V to 1000V bus levels, custom magnetics like flat copper foil air-core coils and pulse transformers (EE65 high-voltage series) have become mission-critical. OEM buyers prioritize low Direct Current Resistance (DCR), high saturation current margins, and supreme high-frequency switching efficiency to reduce vehicle On-Board Charger (OBC) thermal footprints.

Comparative Technical Specifications: Distribution & OEM Components

Equipment Category Primary Voltage Class Insulation / Cooling Media Core Technical Standard Primary Sourcing Application
S22 Power Transformer 10kV / 0.4kV (Customizable) Mineral / Synthetic Ester Oil IEC 60076, ISO9001 National Utility Grids, Boost Sub-stations
JDZW-35R Voltage Transformer 35kV Class MV/HV Cycloaliphatic Epoxy Resin (APG) IEC 61869-3, IEEE C57.13 Substation Revenue Metering & Relay Protection
Polymer Surge Arrester 35kV Overhead Lines High-Hydrophobicity Silicone Polymer IEC 60099-4, ANSI C62.11 Overhead Transmission Line Lightning Protection
EE65 Pulse Transformer High Voltage Pulsed Isolation Reinforced High-Voltage Bobbin UL94 V-0, CE, RoHS EV Chargers, High Frequency Power Conversion
Auto-Recloser Breaker Up to 38kV HV Lines Vacuum Interrupter / Solid Dielectric IEEE C37.60, IEC 62271-111 Smart Distribution Grid Fault Clearing
Strategic Outlook

Next-Generation High Voltage Technological Trajectories

Wide-Bandgap (SiC/GaN) Alignment

Emerging pulse transformer designs utilize multi-chamber specialized bobbins capable of handling dv/dt stress exceeding 100 kV/μs, preventing partial discharge breakdown in Silicon Carbide power circuits.

Anti-Pollution Polymer Coating

Overhead line arresters utilize silicone polymer housings formulated to resist severe UV radiation, saline coastal corrosion, and heavy industrial pollution (Class IV contamination rated).

Intelligent Recloser Automation

Integrating distribution automation controllers with solid dielectric vacuum reclosers enables microsecond fault detection, self-healing loop restoration, and wireless remote telemetry access.

Procurement Guide

Frequently Asked Questions for Global OEM/ODM Buyers

What specific OEM/ODM customization capabilities do you offer for transformers and magnetics?
We offer extensive custom engineering options including tailored primary/secondary voltage ratings, custom tap changers (off-circuit or on-load), specialized vector groups (Dyn11, Yyn0, etc.), non-standard mounting dimensions, specialized epoxy resin formulations (Class H/N thermal insulation), custom copper foil width ratios, and client-branded nameplate ratings compliant with local regional standards.
How does your factory ensure zero-defect quality for high voltage exports?
Every unit produced in our facility undergoes strict Factory Acceptance Testing (FAT). This includes winding resistance measurements, voltage ratio and phase displacement verification, short-circuit impedance testing, full-scale induced overvoltage and separate-source AC withstand tests, partial discharge (PD) measurements (<10 pC threshold for cast resin units), and full lightning impulse withstand testing.
What are the lead times for custom high-voltage transformers and switchgear orders?
Standard build times for made-to-order OEM components typical range between 4 to 6 weeks depending on raw material sourcing (e.g., specific electrolytic copper grades or silicon steel core dimensions). For standard baseline distribution transformers and component inventory, ready-to-ship stock can be dispatched within 7–14 business days.
What certifications and test reports accompany your export shipments?
All exported high-voltage equipment ships with full engineering documentation packages, including CE compliance certificates, RoHS material declarations, ISO 9001/14001 factory audits, type test reports from accredited independent laboratories (KEMA/CNAS aligned), and individualized routine Factory Test Certificates detailing full dielectric test metrics.
Can your oil-immersed transformers be retrofitted for eco-friendly ester fluids?
Yes, our oil-immersed transformers (including S11-M, S22, and 500KVA 25KV models) can be engineered and sealed specifically for natural or synthetic ester dielectric fluids. We adjust gasket material selection (Fluorocarbon/Viton), internal thermal dissipation calculations, and expansion tank configurations to match the higher viscosity and fire safety parameters of ester oils.

Partner with a World-Class OEM/ODM High Voltage Manufacturer

Direct technical consultation with senior electrical design engineers. Submit your technical specifications, line diagrams, or RFQ details for rapid project quotation.