| 1. |
Electrical
Silicon Steel is cut by a top of the line-automated machine.
The Cutting is very accurate with high speed. It covers
various range of transformers capacities. Required design data
from the Engineering Dept., and is directly connected to the
machine's computer, operates the machine. |
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| 2. |
The
transformer's cores are assembled on hydraulic tables, which
fit the cores and put them in the vertical position after
completion of stacking. |
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| 3. |
The
LV windings which are made of copper foils, are wound via high
speed and accurate machines. These winding machines are
controlled by PLC's. |
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| 4. |
The
HV windings which are made of enameled copper wires are wound
too by high speed and accurate winding machine controlled by
PLC's. |
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| 5. |
The
completed LV/HV windings are pressed and cured by DC curing
machine. |
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| 6. |
The
windings are assembled on the cores at the location designated
for that using specialized overhead cranes. |
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| 7. |
All
Electrical connections are completed after that. |
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| 8. |
The
completed active parts are then dried by the ovens in order to
increase the electrical insulation characteristics and to got
out any traces on moisture before for tanking. |
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| 9. |
Transformers
tanks are made at Utec utilizing the very sophisticated
automatic fin folding line. After that, the tanks are cleaned
by grit blasting machine preparing them for painting. Each
tank is painted with sufficient no. of layers to ensure its
standability against rust and harsh environmental conditions. |
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| 10. |
The
transformers tanks are flood panted applying anti-corrosive
primer and alkyd enamel as a finish coat. |
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| 11. |
The dried
active parts are assembled inside the tanks. Tanks after that,
are filled with oil under vacuum. |
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| 12. |
After the
completion of the Transformers, routine tests are applied as
per IEC standards. In addition to that, some type tests can be
performed too at Utec laboratory like temperature rise and
Noise Level Tests. |
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