Repairs And Maintenance Of Transformers And OLTC, Dealers In Spares Of Transformers And OLTC, Bushing Current Transformer, Bushing Metal Parts, Commissioning Of Transformers, Cooling Radiators, Erection Of Transformers, Repairs Of Transformers, Repair And Maintainence Of Transformers, Transformer Accessories, Transformer Consultant, Transformer Spares, Mumbai, Maharashtra, India



We offer wide range of services, to name a few:-

On site repair & Overhauling of Power & Special Transformers.
This includes replacement of transformer windings, insulation, gasket sealing and removal of moisture. Such repairs/overhauling is carried out at site where adequate lifting and handling facility is available

Overhauling and repair of On Load Tap Changers.
On load tap changer is the most important device of transformer which needs special attention. We are having a team of specialised engineers for repair and maintenance of On Load Tap Changers of any make.
Erection, testing and commissioning of new transformers.
Deccan has extensive experience in erection and commissioning of all types of transformers. We have a separate segment for erection and commissioning of large transformers. Combination of highly skilled site technicians and modern handling equipments enhances the speed and efficiency of this vital operation which includes erection of fittings and accessories, evacuation of main transformer tank, oil filling under vacuum and pre-commissioning tests of transformer.
Transformer Oil Filtration
Transformer oil filtration is carried out with oil filter machine of adequate capacity.
Our mobile oil filtration plant is designed to remove dissolved moisture, dirt, air and other gases from the transformer oil.
This two stage plant operates on the principle of Low Temperature and High Vacuum.
Unfiltered oil is taken in to the system through the inlet valve. Then the oil is pumped to the system through positive displacement pump. Preliminary filters protect the pump by entering solid and magnetic particles upto 1 mm size. The oil is heated up to 60°C. After heating the oil passes through the cartridge filters where the particles up to 5 microns are filtered. Then the oil is passed through a specially designed vacuum chamber, where the moisture, air and other gases are extracted from the oil. The vacuum chamber is designed in such a way that the oil is spread out and is allowed to fall by gravity over the media inside, forming a thin film of oil providing a large surface area exposed to vacuum. With this exposure, the dissolved moisture and gases are evacuated to improve the insulating properties of transformer oil.
Transformer Oil Testing
Transformer oil is tested as per recommendations of relevant IS.
We test the transformer oil for various crucial parameters such as:
  ● Specific Resistance (Resistivity)
  ● Dielectric Dissipation Factor (Tan Delta)
  ● Neutralisation Value (Acidity)
  ● Water Content (PPM)
  ● Inter Facial Tension
  ● Dissolved Gas Analysis
  ● Dielectric Strength
Dehydration of Core Coil assembly of the transformer.
Active part of the transformer is heated and then evacuated for removal of moisture from the insulation.
Core coil assembly is heated by hot oil circulation or induction heating system.
Our other Maintenance and Field services includes:
  ● Preventive & Corrective Maintenance
  ● Cooling system uprating
  ● Retrofit and life extension services
  ● Technical Assistance & Supervision
  ● Advance Diagnostics and Analysis
  ● Electrical Testing
We supply all kind of transformer accessories and protection apparatus for any make of transformers and critical spares of On Load Tap Changers.
Transformer Spares:
  ● Bushings with metal part assembly.
  ● Cooling Radiators.
  ● Winding/Oil temperature indicator.
  ● Buchholz & Oil Surge relay.
  ● Magnetic Oil Level Gauge, Pressure Relief Valve.
  ● Silica gel Breather & Flow indicators etc.
  ● Gasket & Oil seal etc.
  ● Flexi Separator for conservator.
  ● OLTC Spares