CORE (Magnetic Circuit):
Core manufacture is realized by out experienced employees in our factory
by using modern slitting, length cutting and annealing machines. This
enables us to minimize loses of our cores and realize our manufacture
in a rapid manner.
According to specifications of transformers, cores are manufactured
from magnetic silicone still sheets (metal sheet with silica) with
low loss and directed particles. As the main core materials, we use,
M3, M4 and M5 and from time to time high permeability grade materials
like MOH, ZDKH are also used. Grain oriented silicone still sheets
are purchased as rolls and all operations on them like slitting, length
cutting, annealing if needed, and stacking are made in MAKSAN facilities
and core is obtained.
Cylindrical coils, which have more strength against the loads in short
circuit conditions, are used in power and distribution transformers.
Excluding HV coils, LV and HV conductors of small type distribution
transformers are insulated by wire insulation machines in our plant
by using insulation materials that have insulation characteristic.
Cellulose based insulation materials that are not harmful for environment
are used for coil manufacture. Used insulators are insulated according
to their functions. Transformers are made resistant to atmospheric
over voltages by using wires insulated with horizontal and vertical
conductor insulation machines. MAKSAN creates a difference by emphasizing
these issues. LV coils of distribution transformers are manufactured
from strip or band materials and HV coils are manufactured from flat
and round conductors. Various winding manners like layer winding,
folded winding, radial channel winding, etc. are used in power transformers.
Tank and cover manufacture of power and distribution transformers
excluding radiator and corrugated walls are made in our factory. Tanks
and covers are manufactured in short time in high quality with our
modern machineries according to their technical drawings and specifications.
Sandblasting facility in mechanical workshop sandblasts all metal
parts that are at active part of transformer and contact with transformer
oil. Sandblasting operation is carefully applied on outer surfaces
in order to obtain a long life for primer and finish in various environmental
conditions. When manufacture is completed transformer tanks are tested
for pressure and leakage checks before applying primer. In line with
demand of customers, bushing cases or cable boxes in IEC and BS standards
can be manufactured.
ASSEMBLY and DRYING:
Components that compose active part of transformers are assembled
in assembly department. Tap changers, bushings and all connections
are realized. Additional insulation is applied to certain sections
against possible over voltages. Active section is reinforced with
additional supports in order to increase its strength. After assembly
active section is dried in vacuum oven with solvent vapour. Transformer
drying time of vacuum oven with solvent vapour is about 1/5 of the
time required for classical drying ovens. Short time prevents aging
of insulation materials used in transformers. Unwanted substances
like oil, dirty, dust, rust on any part of transformer are cleaned
with solvent spraying during the process. Using ovens with solvent
vapour that can obtain high vacuum in production of hermetic and power
transformers is very important for product quality. MAKSAN uses solvent
vapour/spray vacuum oven for all transformers it manufactures or repairs.
After drying operation, transformers are automatically filled with
purified transformer oil under high vacuum (under 0.1 millibar).
| CONTACT US
Elazığ Karayolu 9. Km P.K.: 67
MALATYA / TURKEY
Phone: (+90 422) 341 00 90 (pbx)
Fax: (+90 422) 341 00 99
Yıldız Posta Cad. Akın Sitesi
No.: 12 D. 72
Gayrettepe / ISTANBUL / TURKEY
Phone: (+90 212) 274 37 07 (pbx)
Fax: (+90 212) 274 37 05