Power transformers are step-up or step-down transformers used in the electricity transmission system, whereas distribution transformers are step-down transformers used in the electricity distribution system.

The electricity supply system is divided into the transmission system and the distributionsystem. The distribution system is the part of the system which supplies the consumer -in the UK, we are talking about voltages of 33 kV, 11 kV, and 400/230 V.

Power Systems or Transmission & Distribution

distribution factor ['dis·trə′byü·shən 'fak·tər](nucleonics) A term used to express the modification of the effect of radiation in a biological system attributable to the nonuniform distribution of an internally deposited isotope, such as radium's being concentrated in bones.

Maharashtra State Electricity Distribution Company Limited's population is 2,010.