Feeder Losses In Power System

There are two types of transmission and distribution losses.

Feeder losses in power system.

Distribution sector considered as the weakest link in the entire power sector. This quantity of loss is seemingly little high as compared to normal losses of 5 to 6 in a feeder circuit. Consider a distribution substation which receives power from a transmission line. Total transmission and distribution losses are about 40 50.

The problem of the losses and voltage drop in distribution feeders dependent on each other and varies with the pattern of loading on the feeders. Lower power and energy losses are reduced by raising the load factor which evens out feeder demand variation throughout the feeder. The technical losses are due to energy dissipated in the conductors and equipment used for transmission transformation subtransmission and distribution of power. The feeder loss per 100 meters is related to the frequency band.

Energy losses occur in the process of supplying electricity to consumers due to technical and commercial losses. T d losses energy input to feeder kwh billed energy to consumer kwh energy input kwh x100. There are two types of transmission and distribution losses. Distribution sector considered as the weakest link in the entire power sector.

The formula for calculating the feeder loss according to the feeder type and length is as follows. Total losses due transformers in the feeder circuit is 8 57 of the total input to the substation. Commercial loss total energy sent total energy billed technical loss the above methodology is applied in the two feeders to estimate the theoretical loss in the feeder. Total annual iron loss.

Loss load factor 0 8 x lf2 0 2 x lf load factor actual load maximum load 9. Total annual iron loss in kwh iron losses in watts x nos of tc on the feeder x 8760 1000. Transmission losses are approximately 17 while distribution losses are approximately 50. I will explain it with reference to a substation.

Total annual iron loss 63 kva tc 200 x 3 x 8760 1000 5256 kkwh. T d losses energy input to feeder kwh billed energy to consumer kwh energy input kwh x100. If the feeder supplied a total energy of 5 000 mwh the load factor for that month is 5 000 mwh 10mw x 720 0 69. Total annual iron loss 25 kva tc 100 x 3 x 8760 1000 2628 kwh.

Total annual iron loss 100 kva tc 290 x 3 x 8760 1000 2540 kwh. Figure below shows the typical connections of the antenna feeder system in an indoor base station. The distribution system in developing countries suffers from the problem of low voltage and high energy loss.