What is the cost of transformer oil filtration?

The cost of transformer oil filtration varies depending on several factors, including the size of the transformer, the volume of oil, the level of contamination, the type of filtration equipment used, and the location. Here is an overview of cost considerations:

 1. Per Litre Basis

   - Cost Range: $0.50 - $2.00 per litre

   - For standard oil filtration services, the cost typically falls within this range. The exact price depends on the extent of contamination and whether additional treatments, like degassing or dehydration, are needed.

 2. Per Hour Basis (Service Charges)

   - Cost Range: $100 - $300 per hour

   - Some service providers charge based on time. This rate can vary based on the equipment used, the number of personnel required, and the specific processes involved. High-capacity filtration systems with faster rates may incur higher hourly costs.

 3. Fixed Pricing for Specific Transformers

   - Small Transformers (up to 1,000 kVA): $1,000 - $3,000

   - Medium Transformers (1,000 - 10,000 kVA): $3,000 - $8,000

   - Large Transformers (above 10,000 kVA): $8,000 - $20,000 or more

   - These fixed prices include the entire filtration process for a specific transformer size and usually account for the volume of oil and the filtration requirements.

 4. Additional Costs

   - Dehydration and Degassing: If the oil has significant moisture or gas content, additional treatments can increase costs by 20-50%.

   - On-Site Service Fees: Costs may rise if the service requires travel, specialized equipment transportation, or operation in remote locations.

   - Testing and Analysis: Oil testing (before and after filtration) may cost an extra $100 - $500 depending on the range of tests conducted (e.g., dielectric strength, dissolved gas analysis).

 5. DIY Equipment Purchase (For In-House Filtration)

   - Portable Filtration Units: $5,000 - $15,000

   - High-Capacity Systems: $20,000 - $50,000 or more

   - Companies with large fleets of transformers may invest in their own filtration equipment to reduce recurring service costs. While initial investment is high, it may be cost-effective in the long run.

 6. Long-Term Maintenance Contracts

   - Some companies offer contracts for regular oil maintenance services, which could reduce costs on a per-filtration basis, especially for large facilities with multiple transformers.

The actual cost of transformer oil filtration depends on the specific requirements, including the amount of oil, level of contamination, service location, and whether any specialized treatment is needed.