High Viscosity Transformer Oil 1500N

Description

1. Product Overview

High Viscosity Transformer Oil 1500N is a highly refined, naphthenic-based insulating oil formulated for large-capacity power transformers and reactors. Its primary industrial use is in extra-high-voltage (EHV) and ultra-high-voltage (UHV) transmission assets where superior cooling and electrical insulation under thermal stress are critical. The key value proposition is its exceptional oxidative stability and high flash point, which extend transformer service life and reduce maintenance frequency. Strategically, this product addresses the global grid modernization need for reliable, long-life insulating fluids in dense urban and industrial load centers.

2. Key Specifications & Technical Characteristics

• Chemical composition: Highly refined naphthenic mineral oil with low sulfur content and no PCB additives

• Purity / grade: IEC 60296 (Grade B – high oxidation stability) / ASTM D3487 Type II equivalent

• Physical characteristics:

  • Viscosity @ 40°C: 28–32 cSt

  • Viscosity @ 100°C: 5.5–6.5 cSt

  • Density @ 20°C: 0.880–0.895 g/cm³

  • Appearance: Clear, bright, free from sediment

  • Color: <1.0 (ASTM D1500)

  • Breakdown voltage (flat cell): ≥70 kV (after drying)

• Packaging options: Bulk flexitanks (20,000 L), ISO tanks (24,000 L), new 200 L steel drums, 1,000 L IBC totes

• Shelf life: 60 months in original sealed packaging under dry, covered storage (5–35°C)

3. Core Industrial Applications

• Primary industries: Electric utility transmission & distribution, heavy industrial power systems (steel, cement, petrochemical), high-speed rail traction substations, and renewable energy grid interconnects

• Specific operational use cases: Large power transformers (≥100 MVA), shunt reactors, load tap changers (LTCs), and high-voltage bushings requiring high-viscosity oil for controlled flow and reduced noise

• Why this product performs better: Superior viscosity index minimizes viscosity drop at operating temperatures, maintaining dielectric integrity and cooling efficiency longer than conventional 600N or gas-to-liquid (GTL) alternatives in overloaded assets

• Efficiency / durability advantage: High oxidation stability (>250 hours RBOT in ASTM D2112) reduces sludge formation, extending transformer oil change intervals by up to 40% compared to standard transformer oils

4. Competitive Advantages

• Quality consistency: ISO 9001:2025 certified blending facility with batch-incremental GC-MS testing; guaranteed <10 ppm PCBs and <15 ppm moisture ex-works

• Supply reliability: Dedicated 2 million liter tank farm with rail loading capacity; 98.5% on-time-in-full (OTIF) performance across 30+ countries

• Logistics capability: Bulk RORO, ISO tank, and drum flex options; port-to-door tracking with bonded warehousing in Rotterdam, Houston, and Singapore

• Price competitiveness: Transparent index-linked pricing + volume-tiered discounts for 500 MT+/year contracts

• Sustainability: Hydrotreated base oil reduces polycyclic aromatics (PCAs) below 0.5% wt; fully recyclable and compatible with re-refining circuits

• Technical support: On-site sampling kits, dielectric testing protocols, and material safety data sheets (MSDS) in 12 languages

5. Commercial & Supply Information

• Minimum order quantity (MOQ): 20 metric tons (MT) per product grade

• Bulk loading capacity: 24 MT per 20-foot ISO tank container; 20 MT per flexitank inside standard 20-foot dry container