Submerged Arc Furnace Transformer Calcium Carbide Furnace Transformer

Iron Core

The iron core is made of high quality magnetic cold-rolled oriented silicon steel sheet with full oblique joints at 45 degrees. The surface of the iron core is sealed with special resin, resistant to moisture and stainless steel. The core lamination adopts the latest step lamination method to reduce the no-load loss and no-load current.

Winding

The high and low voltage winding of the transformer is made of high quality material, which makes the winding ampere-turns balanced, has strong resistance to short circuit, and reduces the eddy current loss of the winding.

Operation Principle

High pressure of 35 KV, D connection, low voltage is 4 x 1.0 KV, using two groups of yanbian delta connection, in addition, respectively is the delta connection and Y connection to phase shifting transformer rectifier, yanbian triangle phase-shifting Angle of plus or minus 15 degrees, a 24-pulse rectifier transformer combination.

By Phases

• Single-phase transformer: for single-phase load and three-phase transformer group.
• Three-phase transformer: used for raising and lowering voltage of three-phase system.

According to Cooling Mode

• Dry-type transformer: natural cooling or fan cooling by air convection.
• Oil-immersed transformer: relying on oil as cooling medium (self-cooling, air-cooling, water-cooling).

By Use

• Power transformer: used for power transmission and distribution systems.
• Instrument transformer: voltage/current transformers and relay protection.
• Special transformers: furnace transformers, rectifier transformers, phase-shifting transformers.

By Iron Core Form

• Amorphous alloy transformer: New type of magnetic conductive material, reducing no-load current by about 80%.
• Shell transformer: Special transformer for large current applications like welding or furnace use.