Product Description
ELECTRIC ARC FURNACE TRANSFORMER
1. Top three in China, advanced performance
2. CE, IEC, ANSI
3. ISO, OHSAS
4. Up to 180MVA
Application:
Arc furnaces are used in steel industry for smelting scrap iron and for refining steel. Other application areas are :
1) Smelting glass and ceramics
2) Manufacturing or refining many other materials etc. ferrochromium, ferromanganese, different abrasive materials(oxides and nitrides), semiconducting base materials, nanopowders etc.
3) Electric arc furnace (EAF) transformers are required for many different furnace processes and applications . they are built for :
a, Steel furnaces, mainly long arc
b, Landle furnaces
c, ferro-alloy furnace and similar with short or submerged are
d, Smelting of other materials
Features:
1) Low loss
2) Low noise
3) High efficiency
4) Low partial discharge
5) Strong mechanical strength and short-circuit withstand ability .
6) Operation reliability
7) Easy maintenance
8) Pretty outline and compact structure
9) 100% guaranteed no leakage
Brief specification
1) Voltage class: 6~110 KV
2) Capacity : 630 KVA to 120,000 KVA
3) Short-circuit impedance : 4.5~21%
4) Losses : No-load losses is fully comply with IEC standard requirements
Winding .
The winding must be especially protected - both against high electrical stress due to external over voltages and against mechanical overloads by short circuits. They are made of copper or aluminum. Low-voltage windings are made of strip or flat wire while high voltage windings are anufactured from round or profile wire. ("diamond-dotted paper") bonds the winding into a compact block while drying and increases the short-circuit capacity additionally.
Detailed Photos
Company Profile
Magnetic Core lamination.
The three-limb iron core is made of oblique cut Grain-oriented, seven-step silicon steel lamination insulated on both sides,guaranteeing low losses and low noise. These values are even improved by laser treatment. It is protected on the surface with a flash-proof varnish in order to prevent the sheet from corrosion and to reduce the noise.
Test lab
Testing are conducted for every transformer before delivery.Tests are classified to be routine tests and type test.
A - Routine tests: According to IEC 60076 standard , the following tests must be carried out for all units of the transformers
a- Measurement of winding resistance .
b- Measurement of voltage ratio and check of phase displacement.
c- Measurement of short circuit impedance and load losses.
d-Measurement of no-load losses and current .
e-Dielectric routine tests including the separate source AC voltage withstanding test and short duration induced over voltage withstanding test ( ACSD ) .
B - Type tests :
The following tests shall be carried out
a- Temperature rise test
b- Lightning impulse test
C - Special tests :
a- Determination of noise level according to IEC 60551 .
b- Oil leakage test
c- Overload test at 150 % rated current for one hour after temperature rise test ( top oil temperature rise and winding temperature rise must be measured and recorded in the report test also hot spot temperature rise must be calculated and recorded on the report test ) .
d- Short Circuit Dynamic stability Test (test report from independent and accredited laboratory for similar transformer will be accepted).
Our Performance:
| 1. |
Pre sale service |
| a. |
make technical solution |
| b. |
send quotation, technical data sheet and drawing |
| c. |
prepare power transmission plan, testing plan,and shipment plan |
| 2. |
In sale service |
| a. |
supervise the manufacturing schedule totally in accordance with the plan |
| b. |
send photos to customer during every manufacturing process(hold point) |
| c. |
inform the customer one week before testinng. |
| 3. |
After sale service |
| a. |
installation and commissioning, training the workers |
| b. |
quick response within 12 hours any time |
| c. |
provide 12 months gurantee period normally. |
Thanks for choosing VILLE as your reliable partner and please trust both of us will create a brilliant future!
Audited Supplier 
){kind=link}