What is Parallel Operation of Transformers?

What is Parallel Operation of Transformers?

Parallel Operation Defined

Parallel operation of transformers is when multiple transformers are connected to increase system reliability, efficiency, and flexibility.

Maximizing Efficiency

Efficient parallel operation is achieved by activating only the transformers necessary to meet current demands, optimizing energy use.

Maintenance and Reliability

Parallel operation allows for maintenance without service interruptions and enhances reliability by providing backup capacity.

Conditions for Operation

• Same voltage ratio of transformer.

• Same percentage impedance.

• Same polarity.

• Same phase sequence.

Future-Proofing

This setup allows for easy adjustment to changes in power demand, either increasing or decreasing capacity as needed. 

Advantage

• To maximize electrical power system efficiency

• To maximize electrical power system availability

• To maximize power system reliability

• To maximize electrical power system flexibility