Vast experience in design - Leading to precision and reliability in product
We have design expert Mr. Mukundan who is IIT M.Tech Graduate with 40 plus year experience in designing large motors, generators, transformers and power electronics systems. He retired as Head of R&D of Jyoti Ltd. Mr. Mukundan was instrumental in developing ‘Rotating Phase Convertor’ (Arno convertor) for 25kVAC system at railways which received award for import substitution. Thus our customers are assured of ‘world class’ designed product.
He also has many patents on induction motor.
1. Dust free area for HT winding on fully automatic winding machine.
2. We use high quality material from our vendors and wind them in the dust free environment on a sophisticated automatic winding machine giving a very reliable product.
3. VPI Process: -
We adopt a unique process i.e. vacuum pressure Impregnation Process(VPI) for coils. VPI ensures that resin enters between each turn, layer and every interstice. Thus the coil becomes one single rigid mass giving unmatched rigidity and insulation integrity. With VPI one gets mechanically rigid coils and strong insulation and yet it retains natural heat dissipation properties.
VPI superior technology Vs Epoxy casting:
Epoxy casting adopted by some manufacturers will offer limited benefits since epoxy will adhere to only the surface of the coils. Further putting epoxy casting to the hot coils is similar to wearing a heavy woolen coat in ‘Thar Desert’. It stops heat conduction.
VPI gives technologically the best solution. One can verify this property by a simple test which is offered as routine test in our factory – i.e. heat run test with cooling time measurement period. We inject starting current through the coil for starting time and measure temperature rise on digital scanner with the help of embedded RTD. After the heat run we allow the coils to cool down naturally and measure the time taken to come to normal room temperature. This helps in knowing the cooling time constant and number starts that are possible with the coils. We are unique in offering these tests.
No reason why all leading motor and dry type transformer manufacturer has adopted VPI process for its products.