Why Choose Copper
The advantages of using Copper in transformer windings:
- Inherent low loss material
- Special skills not needed during jointing and termination (significant percentage of transformer failure can be attributed to defective joints and termination)
- Copper scores over Aluminium in several respects such as conductivity, resistance, thermal conductivity, better withstanding capability during short circuit, etc.
- Easy availability and competitive pricing favours “Copper” usage.
Transforming the Transformer
Distribution Transformers (DTs) are key assets for any distribution network. Their reliable and efficient operation can result in long-term benefits for the Indian power distribution utilities. The DT failure rate in India is high in the order of 12-15% (in State Utilities), as against global average of less than 1%. Active repair is preferred over Reactive methods to significantly reduce the technical losses in DT and improve reliability.
- Reduces technical losses, thereby saving power procurement costs
- Allows for further improvement in energy efficiency of transformers as mandated by BEE in PAT-2 cycle
- Improves transformer reliability, thereby reducing downtime
- Increases kVA capacity of the transformer
- Creates an opportunity for the DT OEM or repairer to become a stakeholder in network O&M
What We Do
International Copper Association India has taken up this project to improve the situation by advocating better technological options (EE distribution transformers) to reduce no-load and load losses. ICA India is promoting the use of low-loss, high-grade materials for the core and winding to result in low-loss, high-efficiency, Energy Efficient Distribution Transformers (EE DTs). The no load losses can be reduced by 75% and load losses by 40% by using Copper windings in place of Aluminium windings.
Transformer Market Scenario
Indian Transformers market size is approx. 266,000 MVA in 2012-13. The market is expected to year on year growth around 15% mainly due to the recent growth seen in the power sector & capacity addition of 88GW under the 12th five year plan.
DT Case Study
For more information on the case study click here