Projects

Transformers

Transformers are one of the primary components for the transmission and distribution of electrical energy. Their design results mainly from the range of application, the construction, the rated power and the voltage level. There are also various special purpose transformers such as furnace transformers, which are basically in the range of power transformers as far as rated power and rated voltage are concerned. Furnace transformers are characterized by very high secondary currents and wide secondary voltage regulation in order to cope with the furnace needs, depending on the particular kind of cycle requested.

For many years, Electrical Arc Furnace (EAF) power transformers have been meeting very high supply needs of the steel industry's arc furnaces around the world. EAF transformers are suitable for steel furnaces, ladle furnaces (LF) and ferroalloy furnaces. They work under critical and severe conditions caused by overcurrents and overvoltages generated by short circuits in the furnaces. Arc furnace transformers are used for melting scrap metal. Usually when there is an EAF there is also an LF that is used to refine the metal melted by the arc furnace. Such kind of transformers are three phases.

We have experience in supplying the following types of transformers
Transformer Type Capacity (MVA)
Three Phase (EAF) Transformer 90 MVA
Three Phase (LF) Transformer 18 MVA
Three Phase (LF) Transformer 13 MVA
Three Phase (POWER) Transformer 63 MVA
Three Phase (EAF) Transformer 45 MVA
Three Phase (EAF) Transformer 85 MVA
Three Phase (EAF) Transformer 130 MVA
Three Phase (POWER) Transformer 160 MVA
Three Phase (LF) Transformer 24 MVA
Steel Making Equipment

Supply of Special Reducer, Mechanical Holding Devices and other equipment related to converter steel making for Bokaro Steel Plant (SAIL) in India. Generally, the group is currently involved in the execution of converter revamp project at SAIL. This project is one of a kind in terms of the complexity and logistics involved. Among other spare parts for converter, the equipment shipped includes Mesh Holding Device, Driving Sprockets and Chains, Special Reducer, Gear Box etc.

Graphite Electrodes

Leveraging our global network, reach, we offer turnkey solutions in complex projects in the field of ferrous metallurgy. We partner with Azovmash, one of the world's leading manufacturer of iron making, steel making equipment and carriage/lifting equipment. We have delivered complex projects across various geographies, like supply and commissioning of Graphite Electrodes f rom major Chinese manufacturers to Azovmash and Dneprospetsstal in Ukraine. Graphite electrodes are widely used in steel, smelting non-ferrous smelting and silicon, phosphorus, etc. We can offer various grades and specifications of the graphite electrode with low resistance, high density, strong antioxidant properties, high processing precision, etc, satisfying the needs of different users. The offered products all meet international quality standards.

Physico-Chemical Specifications of HP Graphite Electrode :
Item Unit Ø200 ~ Ø400 Ø450 ~ Ø500 Ø550 ~ Ø600
Nominal Typical Nominal Typical Nominal Typical
Specific Resistance – Electrode μΩ·m 6.5 6.0 6.5 6.0 6.5 6.0
Specific Resistance – Nipple μΩ·m 5.0 4.5 5.0 4.5 5.0 4.5
Bending Strength – Electrode MPa 10.5 - 10.0 - 10.0 -
Bending Strength – Nipple MPa 19.0 - 19.0 - 19.0 -
Young’s Modulus – Electrode GPa 12.0 - 12.0 - 12.0 -
Young’s Modulus – Nipple GPa 16.0 - 16.0 - 16.0 -
Bulk Density – Electrode g/cm³ 1.65 1.68 1.65 1.68 1.66 1.68
Bulk Density – Nipple g/cm³ 1.75 1.78 1.75 1.78 1.75 1.78
CTE (100–600 °C) – Electrode ×10⁻⁶/°C 2.40 - 2.40 - 2.40 -
CTE (100–600 °C) – Nipple ×10⁻⁶/°C 2.20 - 2.20 - 2.20 -
Ash Content (for reference only) % 0.30 - 0.30 - 0.30 -
Item Unit Ø200 ~ Ø400 Ø450 ~ Ø500 Ø550 ~ Ø600
Nominal Typical Nominal Typical Nominal Typical
Specific Resistance – Electrode μΩ·m 5.5 5.0 5.5 5.0 5.5 4.8
Specific Resistance – Nipple μΩ·m 4.0 3.5 4.0 3.5 4.0 3.5
Bending Strength – Electrode MPa 11.0 - 11.0 - 12.0 -
Bending Strength – Nipple MPa 20.0 - 20.0 - 20.0 -
Young’s Modulus – Electrode GPa 14.0 - 14.0 - 14.0 -
Young’s Modulus – Nipple GPa 18.0 - 18.0 - 18.0 -
Bulk Density – Electrode g/cm³ 1.68 1.72 1.68 1.72 1.68 1.72
Bulk Density – Nipple g/cm³ 1.78 1.80 1.78 1.80 1.80 1.82
CTE (100–600 °C) – Electrode ×10⁻⁶/°C 1.50 - 1.50 - 1.40 -
CTE (100–600 °C) – Nipple ×10⁻⁶/°C 1.40 - 1.40 - 1.20 -
Ash Content (for reference only) % 0.30 - 0.30 - 0.30 -
Nominal Diameter (mm) Nominal Diameter (Inch) Actual Diameter Max (mm) Actual Diameter Min (mm) Nominal Length (mm) Nominal Length (Inch) Length Allowance (mm)
20082052011600 / 180060± 100
250102562521600 / 180060 / 72± 100
30012307303180072± 100
35014357353180072± 100
400164094041800 / 210072 / 84± 100
450184604551800 / 210072 / 84± 100
500205115061800 / 210072 / 84± 100
550225625562100 / 240084 / 96± 100
600246136072100 / 240084 / 96± 100
Graphite electrode is packaged by wooden cages and nipple is packaged by wooden boxes. Graphite electrode and nipple can be packaged together according to the requirements of the customers. The products are protected by waterproof and dustproof plastic inside and fixed by steel bands which fits for land and sea transportation.