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✦<br />
Automated version of expandable mandrel for smoother boring of stator<br />
core packs, to ensure uniform air gap and stator/rotor concentricity<br />
Technology <strong>com</strong>petence achieved<br />
♣ A novel partial-discharge detection system for performance evaluation of<br />
inverter fed induction motors<br />
♣ Prediction of temperature rise of stator winding for three-phase induction<br />
motor<br />
♣ Design of low noise cooling fans for TEFC induction motors<br />
♣ 3-D modeling of power transformers<br />
♣ Analytical capability for power transformer’s electrical design for 3-D<br />
leakage, field distribution, stray loss control, transient voltage and<br />
circulating current distribution<br />
♣ Analytical capability with solid-edge software to enhance 3-D design<br />
capabilities of switchgear products<br />
♣ Structural design of seismic withstand capability under dynamic<br />
conditions by 3-D FEM on ‘ANSYS’ software for power transformer<br />
♣ Design of point machines with different strokes and load parameters<br />
♣ Design of special low RPM (250-RPM) DC motors in 500/3 frame<br />
♣ Fastec auto-stitch tooling with auto skewing of rotor, using servo motor<br />
and CNC controls for high speed lines<br />
♣ Multi-part tooling for segmental and pole stampings upto width of 900<br />
mm<br />
Patents<br />
During the year the Company filed one patent application. In addition to<br />
this, five applications made in the previous years are pending registration.<br />
3. Future plan of action<br />
In the <strong>com</strong>ing year, the Company’s focus will be on meeting increasing<br />
customer demands for products that are eco-friendly, energy efficient and<br />
with intelligent monitoring and control systems. Development of materials<br />
and processes is another major area of activity to improve product<br />
performance and to enhance productivity. Focus will also be on development<br />
of packages and tools for design and performance prediction to enable faster<br />
response to market requirements.<br />
4. Expenditure on R&D<br />
(Rs. Crores)<br />
31st March, <strong>2004</strong><br />
(a) Capital 2.86<br />
(b) Revenue 13.25<br />
(c) Total (a + b) 16.11<br />
(d) Total R&D expenditure:<br />
• as a percentage of total turnover 0.86 %<br />
• as a percentage of profit before tax 18.00 %<br />
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