### HVDS CASE STUDY

Thus, the net power loss per annum can be calculated as considering working for hours of a day with days per annum. However, the consumers at the extreme end of the feeders have been experiencing low voltage levels. Total transformer losses per units units annum 6. The results obtained can be used for financial loss calculation and can be presented to regulate the tariff determination process. Skip to main content. The details of transformers alongwith their specified ratings has been obtained from 33kV State Electricity Board of existing sub-division is as shown in table no. Share from Central Sector Projects

Generation Total capacity till Distribution losses being major share of the system losses needs special attention for achieving remarkable reduction in loss figure. HT Transformer losses As this HT system is replaced by smaller capacity of transformer of rating 10kVA and 15kVA for supplying power to the consumer and their no load and load losses are computed according to particular transformer. Thus core and copper losses occurred in the transformer also contributed to the total power losses per annum in LT system So, for kVA rating transformer, the fixed value of no-load losses and full load losses are W and W respectively. The above alteration is proposed to be made on 0. Total power losses per annum Total iron losses per annum units units 4.

The installation of HVDS system in considerable area of the sub-division, cxse the main technique which is also applied in the present work to evaluate the proposed re-designing of existing distribution network and its future planning.

So, we require the economical way to provide the electrical energy by State Electricity Boards to various consumers at minimum voltage drop and reduce the regulation hvdz voltage. Qureshi et al in [6] presented a paper in his research to develop and guide lines for distribution engineers to show that by reducing the energy losses of the distribution systems available capacity of the system may be conserved without outing up additional capacity. At power factor 0. Determination of the proper placement and rating of transformers and feeders are the main objective of the basic distribution network.

So, there will be voltage drop, line losses and system reliability comes into the act. Electric power providers have a duty hvxs ensure that the consumers are always supplied with the required voltage level.

The present paper emphasis on the re-designing for the existing distribution network for fulfilment of the above objectives of distribution feeder. The results obtained can be used for financial loss calculation and can be presented to regulate the tariff determination process. At power factor Unity and at various temperatures On the basis of the above parameters, the voltage drop calculations had been estimated in table no.

Ritula Thakur et al in [3] presented a paper analysing hvsd designing with the observation that the existing feeder is to be operated on 0. Calculations of power losses of 11kV Ganga Nagar Road Feeder The size of conductor used in the 11kV feeder, which is 30 and 20mm 2 and the resistance for this particular conductor is 0.

## Case Study: High Voltage Distribution System (HVDS) Implementation in BESCOM and MGVCL

The total installed capacity in India is The details of transformers alongwith their specified ratings has been obtained from 33kV State Electricity Board of existing sub-division tsudy as shown in table no.

Devi Lal State Institute of Engg.

Total power losses Studies showed that the voltage drop, total impedance, percentage efficiency and percentage regulation on the feeder are V, 4. The results are satisfactorily obtained in the above case study, theoretically. For this purpose, two stage methodology is used.

Total losses per annum Estimation of Current at different power factor On the basis of the current estimation at reference power factor of 0. The feeder voltage and feeder current are two stjdy which should be within the standard range.

Estimation of Current in atudy lines On the basis of the data of feeder, the calculation of current flowing through the feeder lines can be calculated as under in table 4. Long distance to supply loads causes a significant amount of voltage drop across the distribution lines. Sarang Pande et al in [9] presented a paper, in which a method for energy losses calculation is presented.

HT Transformer losses As this HT system is replaced by smaller capacity of transformer of rating 10kVA and 15kVA for supplying power to the consumer and their no load and load losses are computed according to particular transformer. Thus, the net power loss per annum can be calculated as considering working for hours of a day with days per annum.

The details are as under in table 1 [1]. This is due to, in most cases, voltage drops is a major concern in low voltage distribution systems and not very particular about voltage drop in the high voltage sides leaving it unattended. The power factor assumed to be used as 0.

# Case Study: High Voltage Distribution System (HVDS) Implementation in BESCOM and MGVCL

This results in improving the stability as well as energy handling capacity of the system at minimum cost. Total transformer losses per units units annum 6. Thus, this sector especially, the distribution sectors require economical system to provide electrical energy at a suitable prize and at a minimum voltage drop to reduce the voltage regulation. From the result, it is also realised that the causes of voltage drop on the feeder was mainly due to high impedance level as compared to the permissible value and this high impedance is caused by poor jointing and terminations, use hvs undersized conductors and different types of conductor materials etc.

Total iron losses per annum stufy units 4.

The proposed case study includes the conversion of existing LVDS into HVDS in order to minimise the distribution losses and pilferage thereby, improving the voltage profile and quality of supply to the consumers in existing 11kV feeder.