Featured Solar & Industrial Rectifier Transformers
Custom-built electrical transformation solutions certified for Thailand’s solar power plants, heavy manufacturing estates, and traction power networks.
YUCOO Industrial Electroplating Rectifier Transformer (50A - 1000A)
High-precision AC to DC stepping and rectification unit designed for electrolytic treatment, PCB manufacturing, and metal finishing lines across EEC industrial zones.
- Voltage Input: 220V AC / 380V AC
- DC Output: 12V DC (50A–1000A)
- Cooling: Forced Air / Water Cooled
Factory Direct 3-Phase Control Industrial Rectifier Transformer
Heavy-duty three-phase isolation control transformer engineered for stable voltage regulation in solar plant SCADA, motor drives, and thyristor systems.
- Phase & Control: 3-Phase Thyristor Control
- Efficiency: > 98.5% Low Loss
- Compliance: IEC 60076 / TISI Ready
6300kVA Oil-Immersed High Current Cathodic Protection Rectifier
Utility-grade 6.3 MVA liquid-immersed transformer designed for long-term corrosion prevention in coastal solar structures and marine pipeline projects in Thailand.
- Rating: 6300 kVA (3-Phase)
- Insulation: Mineral / Synthetic Ester Oil
- Protection: C5-M Marine Coating
Single-Phase Control Rectifier Transformer (2000VA - 5kVA)
Versatile step-down control rectifier transformer providing multi-tap DC voltage outputs (6V to 60V) for solar plant auxiliary power panels and telemetry cabinets.
- Input Voltages: 380V / 220V AC
- Output Taps: 6V, 12V, 24V, 48V, 60V DC
- Capacity: 2 kVA – 5 kVA
CEEG ZQSC(H) 2000kVA/10kV Cast Resin Dry-Type Traction Rectifier
Flame-retardant epoxy cast dry-type transformer optimized for urban commercial rooftop solar arrays and transit substations in Bangkok metropolitan area.
- Capacity: 2000 kVA / 10kV Class
- Thermal Class: Class H (180°C)
- Safety: F1 Fire Behavior Certified
T6 Power Rectifier Transformer for HYUNDAI HFC6 Excitation System
Specialized excitation rectifier transformer built for thermal power generators and solar-hybrid microgrids requiring continuous excitation control and voltage recovery.
- Model Ref: T6 / TI16933 Excitation
- Application: HFC6 Power Systems
- Dynamic Response: Ultra-Fast Excitation
33kV / 1MW Hermetically Sealed Solar Step-Up Voltage Transformer
Compact 33kV high-voltage step-up transformer ideal for connecting 1MW - 5MW solar PV blocks directly into the Provincial Electricity Authority (PEA) grid.
- Voltage Class: 33kV Primary / 0.4-0.8kV LV
- Rating Options: 160kVA to 1MW (1000kVA)
- Tank Design: Hermetically Sealed Corrugated
Multi-Winding 3-Phase Solar Inverter Step-Up Transformer (50kVA - 3000kVA)
Utility-scale solar step-up transformer featuring dual/triple LV windings to interface central inverters with PEA/EGAT high-voltage transmission lines.
- Capacity Range: 50 kVA – 3000 kVA
- Shielding: Electrostatic Shielding (THD Filter)
- Vector Group: Dy11y11 / Dyn11
Industry White Paper: Optimizing Solar Transformers for Thailand’s Power Grid
Thailand’s renewable energy transformation is advancing under the updated Power Development Plan (PDP 2018-2037 Revision 1 / PDP 2024), which targets over 50% non-fossil fuel electricity generation by 2050. Key growth pillars include utility-scale solar farms in the Northeastern Isan plateau, hydro-floating solar hybrid arrays on Ubon Ratchathani reservoirs, and intensive C&I rooftop solar adoption across the Eastern Economic Corridor (EEC) covering Chonburi, Rayong, and Chachoengsao. However, deploying step-up inverter duty transformers and industrial rectifiers in Southeast Asia's tropical maritime climate introduces severe operational stressors that standard off-the-shelf equipment cannot survive.
As a specialized OEM solar transformer factory and international exporter serving EPC contractors, independent power producers (IPPs), and industrial developers in Thailand, Sahara Transformers engineers custom step-up and rectifier solutions tailored specifically to the grid interconnection guidelines set by the Provincial Electricity Authority (PEA), the Metropolitan Electricity Authority (MEA), and the Electricity Generating Authority of Thailand (EGAT).
Grid-tied solar installations present unique challenges: fluctuating solar power generation causes frequent voltage transients, DC bias currents from inverter switching can saturate transformer cores, and severe harmonic distortion accelerates internal heating. Our solar inverter duty transformers utilize high-permeability cold-rolled grain-oriented (CRGO) silicon steel cores combined with high-grade copper or aluminum windings, ensuring minimal no-load losses even under continuous light-load grid standby.
Engineering Specs Matrix: Solar Step-Up & Rectifier Transformer Classifications
The table below summarizes our standardized export parameters for solar step-up transformers and industrial rectifier transformers serving the Thailand market, fully compliant with IEC 60076 and Thailand TISI regulations:
| Transformer Category | Capacity Range | Primary / Secondary Voltage | Vector Group | Cooling & Fluid | Efficiency Level (IS/IEC) |
|---|---|---|---|---|---|
| Solar Inverter Duty (Oil Immersed) | 500 kVA – 10,000 kVA | 22kV, 33kV / 0.4kV, 0.69kV, 0.8kV | Dy11, Dy11y11, Ynd11 | ONAN / ONAF (Synthetic Ester Option) | Level 3 (Lowest Loss Class) |
| Cast Resin Dry-Type Solar | 250 kVA – 3,150 kVA | 11kV, 22kV / 0.4kV, 0.69kV | Dyn11, Dyn1 | AN / AF (Class H 180°C) | IEC 60076-11 Tier 2 |
| Heavy Industrial Rectifier Unit | 100 kVA – 6,300 kVA | 380V – 33kV / Multi-Tap DC Output | Custom Star / Double-Wye | Forced Air / Water Cooled Oil | High Current Duty (>98.8%) |
| Compact Substation (CSS) Solar | 100 kVA – 2,500 kVA | 22kV, 33kV Ring Main Unit (RMU) | Dyn11 | Hermetically Sealed Liquid | PEA Substation Standard |
Deployments Across Thailand’s Industrial Regions
Engineered solutions deployed across diverse solar generation environments and heavy industrial manufacturing zones in Thailand.
Utility-Scale Ground-Mounted Solar Parks
In high-irradiance provinces like Nakhon Ratchasima, Lopburi, and Khon Kaen, ambient summer temperatures routinely pass 42°C. Our 33kV oil-immersed solar inverter duty transformers feature ONAN radiators with enlarged surface areas and low-loss CRGO cores, ensuring sustained 100% capacity output without thermal tripping.
Floating Solar PV (Hydro-Floating Hybrid)
Deployed on water bodies like the Sirindhorn Dam floating solar project. These environments demand hermetically sealed compact substations with anti-moisture IP65 enclosures, synthetic ester biodegradable oil to protect aquatic ecosystems, and special anti-vibration rubber mounts to dampen wave motion.
Industrial Rectifiers for Automotive & Electronics
Thailand’s Eastern Economic Corridor hosts massive electroplating, aluminum anodizing, and EV battery manufacturing plants. Our high-current 3-phase thyristor control rectifier transformers deliver continuous low-voltage DC power with ripple ratios under 2%, resisting harsh chemical fumes and heavy industrial duty cycles.
Urban Commercial Rooftop & Data Center PV
Commercial rooftop installations in Greater Bangkok require strict compliance with MEA indoor fire safety codes. Our cast resin dry-type transformers (Class H insulation, self-extinguishing epoxy coating) deliver high efficiency in compact footprints without risk of oil leaks or flammability.
Manufacturing Excellence & Export Capabilities
Combining over 17 years of transformer production heritage with rigorous international quality standards for Thai EPC contractors and buyers.
ISO 9001 & ISO 14001 Factory
Our state-of-the-art manufacturing facility operates under audited quality and environmental management systems, guaranteeing consistent fabrication accuracy.
IS 1180 Level 3 Low Loss
Engineered to comply with stringent energy efficiency guidelines. Reduced no-load and load losses maximize ROI over 25+ year solar project lifetimes.
Short-Circuit Withstand Proven
Fully type-tested for electrodynamic dynamic short-circuit withstand capabilities, shielding solar farms against grid instability and line faults.
Direct Port Logistics to Thailand
Streamlined international shipping routes directly to Laem Chabang Port and Bangkok Port, packaged in seaworthy fumigated wooden crates.
Duty-Free Form E & Preferential Tariffs
Complete international trade documentation support including Certificate of Origin (Form E / Trade Agreements), minimizing import customs tariffs for Thai buyers.
Comprehensive Engineering Support
From pre-bid technical designs and 3D CAD drawings to remote commissioning guidance and field testing assistance in Thailand.
Thailand B2B Procurement FAQ (Frequently Asked Questions)
Technical guidance for electrical engineers, EPC procurement managers, and utility developers importing solar step-up transformers into Thailand.
Q1 How do your transformers withstand Thailand’s high ambient temperature without derating?
Q2 Are your transformers fully compliant with PEA and MEA grid connection standards?
Q3 What tax advantages or preferential customs tariffs apply when importing from your factory?
Q4 How do solar inverter duty transformers mitigate harmonic resonance from central inverters?
Q5 What protective surface treatments are applied for coastal or high-humidity installations?
Q6 What is the typical production lead time and shipping route to Laem Chabang Port?
Q7 How are factory acceptance testing (FAT) and quality guarantees managed?
Ready to Scale Your Solar Project in Thailand?
Request a tailored technical proposal, detailed single-line diagrams (SLDs), and competitive factory-direct pricing for your solar step-up or industrial rectifier transformer requirements.
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