Introduction:


Transformers are the key equipment in electric power transmission and distribution. Their primary function is to adjust voltage to make the delivery of electricity reliable and efficient. Nonetheless, being heavy equipment, transformers are subject to wear and tear and may be a source of failure due to moisture and water accumulation or oil contamination. Enter Minimac Systems' Transformer Dry-Out Systems (TDOS) to save the day.

The transformer is the core of the power flow network. High purity of insulating oil is essential for keeping the transformer in perfect operating condition. If the water content in transformer oil exceeds its limit, the dielectric strength of the transformer oil may be severely lowered. A properly designed transformer dry-out system can help preserve the moisture-free insulation papers in the transformer.

TDOS is a dry-on system that is connected online and can be conveniently connected to a live transformer when drying the transformer. It is implied based on absorbing moisture. Oil flows through the inline moisture absorption cartridges, and moisture is absorbed, and moisture-free oil is returned to the transformer. Automation is provided by the moisture sensors on the in-feed and out-feed of the TDOS (when the feed oil moisture has reached the working level, the machine will automatically shut off). Note: This machine has interlocks to ensure the safety of the transformer.

The system can reduce the contamination of water in oil from more than 5% to less than 0.01% in a short period.

The above product is GreenPro certified. GreenPro is a Type-1 Ecolabel that brings together the combined features of a Type 1 Ecolabel and a Type 1 Environmental Declaration, with specific reference to ISO 14024 and ISO 14025.

The above-mentioned product is GreenPro certified. GreenPro is a Type–1 Ecolabel which is accredited by the Global Ecolabelling Network (GEN).

Certified for sustainability, this product proudly carries the prestigious GreenPro Certification [ GPMSP338011], ensuring eco-friendly excellence.



Why Do We Need a Transformer Dry-Out System?


Improved Functionality:Insulation on a transformer that is damp may cause dielectric failure and partial discharge. Removal of this moisture allows the transformer to run at maximum efficiency.

Longer Life:The drier the insulation, the slower it ages, and thus the longer the life of the transformer.

Safety:Excess moisture can result in electrical shorts, sparking, and safety issues.

Cost Benefits: Stopping moisture-caused failures can cut maintenance costs and eliminate expensive downtime.


Key Features of the Transformer Dry-Out System:


Filtration:Solid contaminants are filtered out from the oil using the latest, highly efficient media, thereby making it clean of dust.

Drying Technology:Employs vacuum dehydration, molecular sieves, or both to remove moisture efficiently.

Heat up:Warm the oil gently to release moisture.

Control Panel:Users may view and adjust system parameters to ensure optimal drying conditions safely and effectively.


Oils That Can Be Cleaned:

  • Transformer oil
  • Insulating oil

Applications Across Industries:

  • Coal/gas/hydro/nuclear/wind/solar power generation plants
  • Power utility plants
  • Power substations
  • Metal and Metallurgy, Permanent ways and Railways; Oil and Gas; CPP plants.
  • Steel and heavy industry, mining, chemicals, and motor vehicle manufacturing

Benefits of the Transformer Dry-Out System:

  • Enhanced ReliabilityMinimizes moisture-induced failures for more reliable transformers.
  • Prolonged Transformer Life: Reduces the ageing of insulation and extends the transformer life.
  • Safety Improvement: Avoids the power-off of the machine caused by the water leaking, making it safer to use.
  • Cost Saving: Saves cost by minimizing maintenance and downtime.
  • Climate Protection: Optimized transformer performance and reduced carbon output.

Key Considerations:

Compatibility:Make sure the oil in the transformer is compatible with the system.

Capacity:Select a system that can accommodate the volume of oil.

Automation:Choose equipment with auto functionalities to keep it uncomplicated.

Maintenance:Opt for systems that are easy to maintain.

Portability: Portable systems are ideal for on-site use.


Conclusion:


The Transformer Dry-Out System is a key element to improving performance, safety, and the life of transformers by protecting them against the damaging effects of moisture. It is an economic option for transformer insulation condition evaluation and can be used for a variety of industry applications. A good system will save businesses money on future costs, maintain reliability, and be green for the environment.”


FAQ:


A: TDOS operates by mating to a charged transformer and looping oil through dehydrating cartridges. The oil is dried and returned to the transformer and will be kept dry and functional.

A: The life span is determined by the working environment and humidity. Frequent inspections can indicate when drying is required.

A: Yes, many designs are intended for in-service processing, so drying can be carried out online without taking the transformer out of service.

A: Depending on how much moisture and the size of the transformer, it will take from a couple of hours to a few days.

A: Most of these units are universal and will work with almost any transformer. Make sure to confirm compatibility with your model.

A: Routine maintenance, including filter and sensor inspection, is vital for ideal operation and service life.

Enabling net-zero commitments into actions

Download