The transformer is the most vital component of a grid-station. Poor evaluation and improper choice of power transformers can wreak havoc on the operational parameters and eventually result in catastrophic events.
power transformer substation installation
The selection of suitable transformer is always an integral part of substation design and separate consultants are often hired for the purpose.
This is the topic that K. sent our team several days ago. He chose to tell you in detail the operational requirements and parameters followed for sanctioning a suitable transformer for a substation.
Many standards like IEC are assigned for 2 main reasons: Safety of personnel and safety of appliances. Therefore, many protection mechanisms have been developed through years to protect the electrical system from abnormal conditions and provide the needed degree of safety. 
The main goal of an electrical power system is to deliver energy to consumers, fulfilling the minimum requirements regarding to quality, reliability and security. This goal is achieved when the elements that comprise the power system (transformers, transmission lines, cables, circuit breakers, etc) are sized to operate efficiently. 
Choosing a good bus scheme is vital for operational reliability, safety and redundancy of power supply system. 
