oil cooled transformers
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TECHNICAL FEATURES : Manufacturing Standards IS-2026 / IEC-76 Core The Core is build up from interleaved low loss cold rolled, grain oriented Silicon Steel laminations. Individual stampings are coated on both sides with an insulating material, which is both oil and temperature resistant. The core limbs are securely bound with heavy duty webbed cotton taps and the yokes are firmly clamped between steel channels, all cores have mitered joints. Top and bottom clamps are secured to each other by means of tie rods which serve the dual purpose of securing the windings in place and of transferring the load from the bottom to the top clamps when the core and windings are lifted. This prevents tensile stresses being set up in the core legs which could adversely affect the iron losses. Windings Transformer windings are designed to meet three fundamental requirements such as mechanical, thermal and electrical. They are cylindrical in shape and are assembled concentrically. The low-tension windings are of the helical type, single or multilayer, using flat copper strips, depending upon the size and current rating of the transformer. The high-tension windings consist of paper covered conductors (round and strips) depending upon the current rating of the transformer. For higher capacity continuous disc windings are used. The windings are rigidly supported by pressboard washers and spacers. Interlayer cooling ducts are provided to ensure that the temperature gradient between windings and oil and hence the hot spot temperature is minimized and higher life expectancy is achieved. Insulation between layers and turns is based upon the impulse test level of the voltage class of the windings as specified in IS 2026.Completed Core coil assemblies are dried prior to impregnation with transformer oil. Winding Connections Tappings and leads are run in multi paper covered flexible conductors in press board half tubes, the phase leads being separated from the tapping leads by adequate barriers. These tubes are rigidly based to ensure that clearances between leads and tank sidewall are maintained when the transformer is fixed in position. Low voltage leads being of larger cross section are sufficiently robust, so supports are provided wherever necessary. Insulation and Impregnation The principal components of insulation are pre-fabricated from pressboard sheet. All items subjected to compression in services are preshrunk and the slight recovery in dimensions after preshrink age is compensated for windings during final drying of the completed transformer. The oil used for impregnation complies with IS 335 and every consignment received at works is tested before entry is permitted into the storage tanks. Short Circuit Strength In order to prevent deformation when subject to short circuit force, solid blocks and insulation, backed by substantial supporting frames, are utilized. The axial end thrust under fault condition is minimized by ensuring that design dimensions are closely adhered during manufacturing procedure. Transformers are designed and constructed in such a way that they are capable of withstanding the effect of short circuit testing. Our transformers have been type tested at CPRI and ERDA. Tapings For the range of transformer covered in this Catalogue, tapings are provided on the H. T. Windings at ±5% in steps of ±2.5%. Other tapping ranges can be supplied on request. Tap selection is effected by means of an off-circuit tapping switch operated by an external handle. Leads for Tapings are brought away from the coils by the means of paper insulated conductors. They are arranged in such a manner that the ampere-turn balance is maintained throughout the tapping range. ON-LOAD TAP CHANGRES are also provided depending upon customer requirement. Terminations All bushings are of high quality porcelain or Epoxy complying as per IS 2099
Rectangular Transformer Tank
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POWER & DISTRIBUTION TRANSFORMER CORE
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We are manufacturing CRGO Lamination (CRGO Transformers Core) which is used in all types of electric items such as distributions & power transformers, generators, chokes CVT, UPS etc... For the power and distribution transformers is manufactured from various grades of CRGO steel. As transformer core have to be process is carried out in one section itself so that flexibility and better control can be achieved. Lamination in various shades and sizes are slit and are cut in required accurate geometrical shapes with 90 degree and 45 degree cutting systems. Various machinery is used through the process. Firstly, the slitting machine is used to slit the CRGO. on this processminimizing the perfect match at the edges during intial setting. Shearing machines is used for this purpose. After this, the materials are hole punched and 'V' notched using the powers press. for achieveing accuracy, Tungsten Carbide tipped tools are utilized for performing 'V' notching operation. Now at this point of eliminate such stresses, the laminations are taken to the roller. Anneal laminations in roller hearth annealing furnace for continuous annealing of CRGO lamination. At the end, the processed materials are brought in to inspection department where it is throughly checked for its technical details and its dimensions by QC professionals and forwarded to packing department. In packing department, the finished products are packed in wooden pallets according to its size and a full description of the material including technical details is attached with the pallet and it is then dispatched to the client.
POWER & DISTRIBUTION TRANSFORMER CORE
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Silica Gel Breather, White Silica Gel, Silica Gel Bags, A-Type Silica Gel
POWER & DISTRIBUTION TRANSFORMER CORE
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Silica Gel Breather, Blue Silica Gel, Silica Gel Beads, Orange Silica Gel
substation transformers
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Substation transformers User friendly & convenient in operation and maintenance. Adequate insulation level using non-hygroscopic material for connection between HV, LV and Transformer Sections. Remote operation can be supplied for operator safety. Enclosure designed for moisture and dust protection.
Transformer
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Transformer
Isolation Transformer
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Isolation Transformer, Inverters, Servo Stabilizer, ONLINE UPS, Generator
Electrical Transformers
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Electrical Transformers, Power Transformers
Furnace Transformers
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Furnace Transformers, Distribution Transformers, unitized substation
Power Transformer
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Our Power Transformer is on high everywhere in the market for its supreme quality. These power transformers are used to change the voltage level for power transmission and distribution. Power Supply Transformer aims to control the voltage efficiently. We are reckoned among the flourishing High Power Transformer Exporters in India because of the timely deliverance of our products at the most reasonable prices. In addition to this, these transformers have the power to withstand adverse conditions and render trouble free services.
Rectifier Transformers
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Rectifier Transformers, corrugated wall transformer, Furnace Transformers
Transformers
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Transformers
audio out put transformer
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audio out put transformer
Transformers
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Transformers, Socket, Brass Nuts, Bolts, Gears, industrial LV panel boards
Corrugated Wall Transformers
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Corrugated Wall Transformers, Industrial Transformers, Furnace Transformers
Oil Cooled Distribution Transformer
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Oil Cooled Distribution Transformer, Power Transformers, Transformers
Transformer
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Transformer, lt electrical panel, LT ELECTRICAL PANEL REPAIR, VFDPANEL