As the load on a transformer increases, the temperature of transformer oil increases which cause expansion in oil volume and. Transformer desiccant breather models v, w and x have a 34 female pipe thread. However, with a new moisture content specification of oil being kept at less than 35 ppm moisture astm d1533 test method, higher performance desiccant than silica gel is needed. Many power generation companies have and do use silica gel canister breathers fitted to the conservator of oil filled transformers, however there is a better solution. Further, the products standard of quality, shelf life and precise ph level. When it comes to design silica gel breather transformer has a simple design. All our transformer breathers are filled with envirogel, which is a selfindicating silica gel desiccant.
You need to select the most suitable silica gel based on the exact specification and quantity required for the application. High durability transformer breathers agm container. Breather, as the name suggest is just an arrangement though which a transformer breath air. Transformadry desiccant breather transformer breathers. Apr 26, 2018 breather, as the name suggest is just an arrangement though which a transformer breath air. Processing of this range is done in compliance with the norms and guidelines defined by the industry, the standard of quality of this transformer breather silica gel never collapses. Mar 02, 2015 the manufacture of silica gel for breather transformers is a specialised process, and the requisite quality standards have to be maintaine.
For typical applications transformers, onload tapchangers or industrial processes, conventional dehydrating breathers filled with silica gel or similar desiccants are still used today in many places. It is nothing but a pot of silica gel through which, air passes during breathing of transformer. As the load on a transformer increases, the temperature of transformer oil increases which cause expansion in oil volume and thus the expanding oil volume pushes the air outside from the conservator of transformer. Maintenance of transformers a detailed checklist electrical4u. Find details of companies offering silica gel breather at best price. Silicagel breather transformer silica gel breather. Mostly used in electrical transformers, silica gel breathers available in different s more. Some of the mix features of products are purity, high effectiveness, long shelf life. In fact, it is a pot consisting of silica gel through which air passes when the transformer. Transformer breathers are designed to enable the quick and easy replacement of the desiccant charge. Oct 02, 2017 the major objective of using these silica gel breathers is that they are used to absorb moisture from the air which is sucked in by the transformer in the breathing process.
The xseries air breather incorporates 2 check valves and a reusable top cap. The check valves provide a closed system until airflow is required which extends the service life of the desiccant. Silica gel breather for transformer silica gel desiccants. The oil level in oil cap under silica gel breather must be checked in a onemonth. This allows a visible assessment of the condition of the envirogel. What is the purpose of the desiccant breathers used in a. Transformer breathers are filled with selfindicating silica gel desiccant which changes color from blue to pink or orange to green as it becomes saturated with water vapor. For reasons of making the finest that are available, we engage in the utilization of quality ingredients, in the most accurate proportion. Whenever electrical power transformer is loaded, the temperature of the transformer insulating oil increases, consequently the volume of the oil is increased.
Silica gel capacity of 25kg fume duct piping reactivation unit model no. Brownell transformer breathers are filled with envirogel, selfindicating desiccant. Most items are held in stock ready for next working day delivery subject to 14. Silica gel is used in breather transformers for controlling the level of moisture and prevents it from entering the equipment. New oil should be used each time the silicagel is replaced. Transformer oil is hydroscopic and will absorb moisture that can damage the insulation qualities of the transformer. The envirogel is orange in colour when active, turning green when saturated. Transformer breathers provide an economic and efficient means of controlling the level of moisture entering the conservator tank during the change in volume of the cooling medium andor airspace caused by temperature gradients. There are various characteristics of silica gel breather and some of them include its working as a perfect dehumidifier. Silica gel silicon dioxide is a colorless, granular, porous material with desiccating properties, made out of sodium silicate. Nov 17, 2019 some transformer maintenance activities only need to be performed once in a 3 to 4 years interval. Specification of the silica gel used in transformer breather.
Jul 03, 2015 silica gel breather transformer for moisture drying by silicageldesiccantsbags on july 3, 2015 moisture drying process is the mass transfer method that is useful for removing the water content or any other solvent in the moisture. Remove the oil trap and fill with new transformer oil to the level indicated on the trap. Contact verified silica gel transformer breathers manufacturers, silica gel transformer breathers suppliers, silica gel transformer breathers exporters wholesalers, producers, retailers and traders in india. Get transformer breather at best price with product specifications. The silica gel is a very good absorber of moisture. Zeozorb transformer breathers exceed the astm d1533 testing specifications and out perform silica gel breathers by over 75% at average operating temperatures 77f. You can imagine how costly repairs might be to your equipment if your desiccant breather doesnt do its job properly on the air space in conservator tanks on oilfilled transformers and lets in moisture. When the crystals or beads of silica gel adsorb the moisture, their color turns from blue to pink. Silica gel is an adsorbent that helps in adsorbing the moisture, humidity, odor etc, from the products and helps in maintaining their effectiveness. The h2o transformer breather the silica gel alternative. Rcafl supply of silica gel indicating type silica gel for transformer breather colour blue 4 7 mesh conforming to i s 3401 note to, due date. These transformer breathers are connected either by a flange or pipe. To maintain your products shelf life stability, its essential to maintain relative humidity at a. When load on transformer increases or when the transformer under full load, the insulating oil of the transformer gets heated up, expands and gets expel out in to the conservator tank present at the top of the power transformer and subsequently pushes the dry air out of the conservator tank through the silica gel breather.
Read more purpose of silica gel breather in transformer. Manufacturer of silica gel transformer silica gel, silica gel 1kg pouch, silica gel 500g pouch and desiccant silica gel for food preservation offered by shiv. Silica gel breather silica gel breather is used to dehydrate the air and remove dust particles of the air breathed in by the transformer and make sure that the air entering into the transformer is free from moisture and dust particles. Superkino silica gel breather type s upto 30000 kva. Silica gel transformer silica gel manufacturer from. Silica gel breather transformer for moisture drying. Breathers are installed on electrical transformers conservator type and. Supply of silica gel indicating type silica gel fo tender. Since, silica gel blue was found to be hazardous and is presently replaced with silica gel orange, with an alternative indicator methyl violet.
Silica gel breather,transformer silica gel breather,silica. How silica gel works in a transformer hindi free electrical education. Tighten wing nuts, checking that both seals are in the correct position and that a good seal is achieved. Nov 17, 2019 the silica gel breather of transformer is very simple in the aspect of design. Purpose of silica gel breather in transformer electrical. Let us first discuss about the action to be taken on power transformer in monthly basis. Transformer silica gel breather sidhi vinayak transformers. Therefore, it is used as a desiccant in avoiding humidity damage. Breathers provide an economic and efficient means of controlling the level of moisture entering electrical equipment during the change in volume of the cooling medium andor airspace caused by temperature gradients. Determining the specific amount of desiccant is key to adsorbing sufficient moisture to. Transformer breathers are filled with selfindicating silica gel desiccant which changes color from blue to pink or orange to green as it becomes saturated with.
As the volume of the oil is increased, the air above the oil level in conservator will come out. We are manufacturing and supplying silica gel breathers made of both aluminum and pvc head with good quality at nominal rates. The first line of defense against lubricant contamination and dielectric loss. In addition, testing shows that if the free air volume above the conservator tank oil is kept very dry, below 100 ppm it will actually liberate and pull moisture from within the. We offer silica gel breather for the proper use of transformer as the air in breather contains moisture and hence affects the proper working of the transformer. Silica gel transformer breathers manufacturers, suppliers.
This 3d animated video explains how a silica gel dehydrating breather works. Freshly regenerated gel is very efficient, it may dry down air to a dew point of below 40 o c. The failure or malfunction of many transformers or similar equipment can be directly attributed to the lack of proper control of the level of mois ture entering the equipment. Find here information of silica gel transformer breathers selling companies for your buy requirements. Breathers are sized by volume of oil in the transformer. R0 up to 1,500 litres r1 up to 3,000 litres r2 up to 4,750 litres v up to 11,350 litres w up to 22,7000 litres. Made with uv stabilised and shatterproof polycarbonate window, r series transformers breather has a transparent, clear body that allows you to check the desiccant condition with ease. We supplya silica gel breathera which is largely in demand in the transformer industry because they provide an economical and efficient way of keeping a tab over the level the moisture, entering in the transformer. X522 desiccant air breather molecular sieve silica gel. Dec 04, 2017 the purpose of these silica gel breathers is to absorb the moisture in the air sucked in by the transformer during the breathing process. Since silica gel is a rigid type desiccant, it is only capable of absorbing approximately 28% of.
Transformer breather, transformer breather manufacturers. Silica gel blue is also used as a transformer breather as well as in chemical industries. Silica gel is available in range of grades and mesh sizes that make it a perfect adsorbent for air breathers. Transformer accessories silica gel breather type s upto. Various sizes and packs of envirogel are available for. Additionally, we also provide transformer oiling and repairing service. Sidhi vinayak transformers is a leading sole proprietorship company which is betrothed in manufacturing an extensive collection of distribution transformer, transformer oil, transformer lubricants, 3 phase transformer, star rated transformer, etc. Transformer dehydrating breathers and dryers drytech inc. Indicating silica gel breathers mounted on the vent pipe are used to absorb moisture in the air that is entering the transformer. How silica gel works in a transformer hindi youtube. We offer the best quality silica gel breather with blue silica gel. It can absorb 1540% by weight of moisture depending on the relative humidity of the exposed atmosphere. When load on transformer increases or when the transformer under full load, the insulating oil of the transfo. Silica gel transformer silica gel manufacturer from ahmedabad.