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伊藤 聡太郎

伊藤 聡太郎

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Viewing 20 posts - 1 through 20 (of 57 total)
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  • You’re absolutely right — minimizing air and moisture ingress during top-up is critical to maintaining dielectric strength and avoiding partial discharge, especially after repairs. Vacuum-assisted filling removes trapped air from windings and insulation before oil insertion, so the UVD-1000-style vacuum filling/transport unit is a good fit for controlled small-volume top-ups; it’s designed for small-batch handling (typical prep volumes around 30 L with a ~4 L filling section) and supports the vacuum filling sequence that preserves insulation integrity.

    For best results pair the vacuum filler with a CMM-series vacuum dehydration/degassing and fine-filtration unit to restore oil dielectric properties and remove moisture and dissolved gases before transfer. The practical workflow is to purify and degas the replacement oil, evacuate the transformer/panel to the required vacuum to extract trapped air and moisture, perform a controlled vacuum fill/top-up while monitoring level and seals, then verify oil dielectric strength and bushing integrity. Adding a Transformer Safety System (TSS) to monitor level changes and automatically stop the process enhances on-site safety, particularly during energized work. If you tell me target oil volumes, transformer types (HV bushings, conservator vs sealed tank) and whether you need on-site field capability or workshop-based processing, I’ll recommend the most relevant GlobeCore package and a concise top-up workflow.

    You’re right — conditioning and restoration steps are essential when dealing with long-stored or heavily contaminated diesel because conventional media filters alone struggle with emulsified water, soluble contaminants and degraded heavy fractions. Best practice is a staged treatment: remove bulk solids first, then separate free and emulsified water by coalescing and dewatering (coagulation/settling or centrifugal separation), and finish with adsorption polishing to remove dissolved organics, gums, resins and sulfur/nitrogen–containing compounds. Coalescing and water-extraction stages reduce filter loading and microbial risk, centrifugal purification breaks stable emulsions and speeds separation, and a multi-column adsorbent polisher restores color, stability and marketable properties while allowing in‑place sorbent reactivation for reuse.

    Integrating these processes into fuel transfer and dispensing infrastructure keeps fuel clean during handling and refueling. Inline or skid-mounted sequences that combine mechanical filtration, coalescers/dewaters and a polishing module give continuous protection of storage and engine systems, extend filter life, and can reclaim dark or degraded fuels for sale or reuse. Be mindful that effectiveness and throughput depend on feed condition: heavily watered or highly contaminated feeds require larger capacity or pre-treatment steps, and sorbent reactivation and cycle times can limit continuous throughput. For field installations, specify a matched sequence — mechanical prefiltration, dewatering/coalescing (or centrifuge) and final adsorption polishing — sized to the fuel quality and transfer rates to get reliable, long‑term results.

    in reply to: Why use power transformer? #332289

    To optimize energy transmission, reduce losses, manage voltage tiers, and interconnect grid segments.

    Air trapped in oil hoses can create misleading signals to protective devices, potentially triggering false shutdowns or gas relay trips. To mitigate this, the TSS incorporates an air relief valve that releases trapped air, preventing false alarms while maintaining reliable protective operation during oil treatment.

    It explains dielectric loss measurements, test setup, acceptance criteria, trending, and how insulation degradation, moisture, or contamination influence tan-delta values.

    It changes AC voltage levels while maintaining power balance (minus losses) through magnetic induction.

    in reply to: What are typical power transformer failure statistics? #330644

    Failures are often linked to insulation aging, moisture ingress, OLTC issues, and bushings; utilities track DGA and incident data to estimate MTBF ranging from decades to half-century for well-maintained units.

    in reply to: What industries rely on Eaton power transformers? #330602

    Eaton power transformers serve transmission and distribution utilities, industrial plants, commercial buildings, mining sites, oil and gas facilities and infrastructure such as airports and hospitals. They are integrated into switchgear lineups and substation packages. Industries that require reliable medium and high voltage equipment, conformity to regional standards and comprehensive service networks tend to choose such established brands. Eaton also supports specialized segments like marine, data centers and microgrids with tailored transformer solutions.

    in reply to: Looking for a 6-10 t/h bitumen emulsion plant. #327639

    The UVB-6 and UVB-10 plants are suitable for medium-scale emulsion production with automatic water-bitumen ratio control and colloid milling.

    The bitumen emulsion plant supports latex and polymer incorporation for modified emulsions. Maintenance involves routine cleaning of the colloid mill and dosing lines. Production rate ranges from 4 to 25 t/h depending on configuration.

    The CMM-R series performs continuous regeneration of transformer oil while equipment remains energized. It removes acids, moisture, and oxidation products. Technical specifications and process diagrams will be provided.

    in reply to: Inquiry About the Oil Processing Unit CMM-8LT #327192

    The CMM-8LT transformer oil purification unit ensures removal of moisture and gases down to 10 ppm and 0.1 % vol respectively. A full technical and commercial offer will be provided upon request.

    in reply to: What does the oil purification process include? #325379

    The process involves heating, coarse filtration, vacuum dehydration, fine filtration, and degassing. GlobeCore automates each stage in their purification systems, ensuring restored ISO cleanliness codes and prolonged oil life for transformers and hydraulics.

    These machines are used in manufacturing and power engineering for drying transformer windings and insulation. GlobeCore integrates hot air drying into their transformer service solutions – especially after oil draining or repair.

    in reply to: What does transformer operation and maintenance involve? #325013

    It includes regular inspections, oil analysis (DGA, BDV), temperature control, and purification. GlobeCore supports this with mobile units for oil regeneration and monitoring tools – helping operators extend transformer lifespan and avoid unplanned outages.

    GlobeCore’s transformer oil filtration machines feature multi-stage degassing chambers, high-precision sensors, and remote control options. Their systems ensure moisture removal <10 ppm and BDV >70 kV, helping utilities and OEMs maintain reliable insulation in high-voltage transformers.

    Silicone transformer fluid is a non-flammable dielectric liquid designed for high fire safety and thermal stability in transformers. GlobeCore purification units degas and dry silicone fluids, keeping their insulating properties intact over long service intervals.

    Oil filled transformers range from small distribution units to multi-megawatt power transformers, all using insulating fluids for cooling and protection. GlobeCore regeneration plants process oils of any volume, ensuring they stay clean and compliant with standards.

    Oil type transformers use mineral or ester fluids for cooling and insulation, while dry type transformers rely on air and solid insulation, offering greater fire safety indoors. GlobeCore equipment supports oil type transformers by purifying and regenerating their insulating fluids.

    Biotemp transformer oil is favored for its renewable base and high flash point, reducing fire and environmental risks. GlobeCore purification plants ensure Biotemp retains its dielectric properties by filtering and drying the fluid regularly.

Viewing 20 posts - 1 through 20 (of 57 total)

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