TAXONOMY: MAT_FLUID
Transformer Dielectric Fluids & Esters
Inhibited Mineral Insulating Oil, Natural Esters (FR3) & Synthetic Esters (MIDEL)
Industry Knowledge Graph Route
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Technical Baseline & Specification Parameters
| Fluid Types | Inhibited / Uninhibited Mineral Oil, Natural Ester, Synthetic Ester |
|---|---|
| Breakdown Voltage | ≥ 70 kV (processed oil at 2.5 mm gap per IEC 60156) |
| Fire Point (Esters) | > 300°C (K-Class high fire point per IEC 61039) |
| Biodegradability | > 95% within 28 days for natural ester fluids (OECD 301) |
| Kinematic Viscosity | ≤ 11 mm²/s at 40°C (standard mineral oil) |
Subcategories & Engineering Architectures
Severe Hydrotreated Mineral Oil
High oxidation stability, low pour point (-40°C), optimized for maximum cooling velocity.
Natural Ester (K-Class)
Seed oil based fluid offering self-extinguishing fire safety, 100% biodegradability, and extended paper life.
Synthetic Organic Ester
Pentaerythritol ester designed for sub-zero climates (-56°C pour point), high moisture tolerance, and wind/rail applications.
Regenerated & Re-refined Oils
Circular economy transformer fluids reducing carbon footprint with full IEC 60296 compliance.
Verified Global Suppliers & Manufacturers (16)
Verified suppliers with independent factory documentation, technical capability certifications, and direct quotation channels.
| Company & Location | Capabilities & Product Lines | Status | Action |
|---|---|---|---|
|
Nynas AB Stockholm, Sweden |
NYTRO premium naphthenic transformer insulating oils | ✓ Verified | Website ↗ · RFQ |
|
Ergon Refining Jackson, MS, USA |
HyPrene dielectric mineral insulating oils | ✓ Verified | Website ↗ · RFQ |
|
Cargill (Envirotemp FR3) Wayzata, MN, USA |
Global market leader in natural ester dielectric liquids | ✓ Verified | Website ↗ · RFQ |
|
M&I Materials (MIDEL) Manchester, United Kingdom |
Synthetic and natural ester transformer fluids | ✓ Verified | Website ↗ · RFQ |
|
Shell Lubricants (Diala) The Hague, Netherlands |
Gas-to-liquids (GTL) high-purity transformer oil | ✓ Verified | Website ↗ · RFQ |
|
APAR Industries (POWEROIL) Mumbai, India |
Largest transformer oil exporter from India across 140+ countries | ✓ Verified | Website ↗ · RFQ |
|
Qualitrol Company Fairport, United States |
Monitoring / diagnostic devices, Oil-level indicators, Temperature indicators, Pressure-relief devices, Buchholz relays | ✓ Verified | Website ↗ · RFQ |
|
Hilliard Corporation (HILCO) Elmira, United States |
Oil treatment devices, Oil-circulation pumps, Transformer oil / ester fluids | ✓ Verified | Website ↗ · RFQ |
|
Camille Bauer Metrawatt AG Baden, Switzerland |
Monitoring / diagnostic devices, Temperature indicators, Oil-level indicators | ✓ Verified | Website ↗ · RFQ |
|
PRESS-N-FORGE (India) Mumbai, India |
Breathers (silica gel), Bushings (HV, LV), Pressure-relief devices, Oil-level indicators, Monitoring / diagnostic devices | ✓ Verified | Website ↗ · RFQ |
|
Lee Vedla Industrial Corporation Bhopal, India |
Pressboard / insulation materials, CRGO (core steel), Copper / CTC conductors, Transformer oil / ester fluids | ✓ Verified | Website ↗ · RFQ |
|
SPX Transformer Solutions (Prolec-GE Waukesha) Waukesha, United States |
Bushings (HV, LV), Tap changers (OLTC / DETC), Monitoring / diagnostic devices, Oil treatment devices | ✓ Verified | Website ↗ · RFQ |
|
Umang Boards Ltd Jaipur, India |
Pressboard / insulation materials, DDP / DPE (densified pressboard), Transformer oil / ester fluids | ✓ Verified | Website ↗ · RFQ |
|
Viat Instruments Pvt. Ltd. Kolkata, India |
Oil-level indicators, Buchholz relays, Pressure-relief devices, Temperature indicators, Bushings (HV, LV) | ✓ Verified | Website ↗ · RFQ |
|
Albert Maier GmbH Weil der Stadt, Germany |
Oil-level indicators, Breathers (silica gel), Pressure-relief devices, Conservator tanks | ✓ Verified | Website ↗ · RFQ |
|
MESSKO (MESSKO GmbH) Oberursel, Germany |
Monitoring / diagnostic devices, Oil-level indicators, Buchholz relays, Temperature indicators | ✓ Verified | Website ↗ · RFQ |