Transformer Oils & Dielectric Fluids Supplier
Transformer Oils & Dielectric Fluids Supplier
Overview
Transformer oil is not a commodity purchase. It is a specification-driven material tied directly to transformer reliability, insulation performance, and regulatory compliance.
At Ironvale Energy Group, we supply transformer oils and dielectric fluids aligned to ASTM and IEC specifications when verified against project requirements. This includes mineral insulating oils, ester-based fluids, reclaimed oils, and project-based retrofill support.
Types of Transformer Oils We Supply
All subcategories we supply:
- Mineral insulating oil (ASTM D3487 / IEC 60296)
- High-oxidation-stability mineral oil (Type II inhibited)
- Natural ester dielectric fluids
- Synthetic ester dielectric fluids
- Retrofill fluids (mineral → ester conversion projects)
- Reclaimed / reconditioned transformer oil
- Onsite reclaim / vacuum dehydration service projects
- EHV / UHV transformer-grade fluids
- Indoor network transformer fluids
- Bulk storage / tank-truck delivered dielectric fluids
Types of Transformer Oils We Supply
Mineral Insulating Oil
Standard ASTM D3487 and IEC 60296 aligned fluids for distribution and power transformers.
Inhibited Type II Transformer Oil
Oxidation-resistant mineral oils commonly used in higher temperature or longer-life applications.
Natural Ester Dielectric Fluids
Biodegradable fluids typically specified for environmental or fire-sensitive sites.
Synthetic Ester Transformer Fluids
Fire-resistant dielectric fluids used in indoor or urban installations.
Retrofill Projects
Mineral-to-ester conversion supply and coordination.
Reclaimed Transformer Oil
Tested and certified reconditioned dielectric fluid where site specs permit reuse.
EHV / UHV Transformer Fluids
Higher cleanliness and stricter test parameter fluids for transmission-grade assets.
Network Transformer Fluids
Fluids specified for underground or urban transformer systems.
What We Supply
Packaging formats typically include:
- Packaging formats typically include:
- 55-gallon drums
- 275 or 330-gallon totes
- Bulk tanker delivery
- Project-based volume supply
Availability depends on specification, testing requirements, and logistics.
See supply options here: /bulk-and-packaged-supply
Documentation and Compliance
Transformer oil buyers require traceability.
Documentation may include:
- Certificate of Analysis
- ASTM / IEC alignment documentation
- Dielectric breakdown test data
- Moisture content results
- PCB non-detect statements
- Chain-of-custody documentation
More details:
https://ironvaleenergygroup.com/documentation-and-compliance
How to Request a Quote
Provide:
- Required specification (ASTM / IEC)
- Volume needed
- Delivery format
- Project timeline
- Testing documentation required
Submit details via our Contact page.
FAQ
What is the difference between Type I and Type II transformer oil?
Type II contains oxidation inhibitors. Always confirm site specification.
Is ester transformer fluid biodegradable?
Natural esters are typically biodegradable. Confirm specification requirements.
Can mineral oil be retrofilled to ester?
Yes, when compatibility and procedures are followed.
Is reclaimed transformer oil acceptable?
It depends on site specification and verified test data.
What tests are required before energizing?
Typically dielectric breakdown, moisture, acid number, and PCB verification.
Do you provide COA documentation?
Documentation is available when aligned to supply batch.
What packaging formats are available?
Drums, totes, and bulk delivery depending on volume.
Are these fluids PCB-free?
Modern transformer oils are typically PCB-free. Documentation required.
Can transformer oil be delivered by tanker?
Yes, depending on volume and logistics.
What standards apply?
Common standards include ASTM D3487, ASTM D6871, IEC 60296, IEC 62770.
Transformer Oil Procurement Checklist
Transformer Oil Procurement Checklist
- Confirm exact ASTM or IEC specification.
- Verify inhibited vs uninhibited requirement.
- Confirm dielectric breakdown minimum.
- Set maximum moisture ppm.
- Require PCB certification.
- Require COA tied to batch number.
- Confirm packaging integrity.
- Confirm chain-of-custody documentation.
- Confirm delivery timeline.
- Schedule oil sampling upon receipt.
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