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Overall the planning is based on the guidelines as prescribed by Central Electricity Authority and Regulatory Commission.
The activities to be carried out has been laid down in the standard planning procedures (SPPs) approved by GRIDCO in December’2000. Some of these are statutory in nature i.e. needs to be submitted to OERC within a prescribed time frame, The said SPP are being followed by OPTCL.
THE WORK EXECUTED BY LTPC SO-FAR AS FOLLOWS;.
(1) System Study.
System studies for the first time for any existing/new users who are connected/proposed to be connected to the Orissa Grid net work, conducting load flow study, shut circuit study, Transient Study analysis in different conditions. As on to-day, this branch has conducted almost 150 nos system studies for some users on their request on prepaid basis.
(2) Long Term Demand Forecast.
Long Term Demand Forecast (LTDF) report for coming 10years is being processed in each year based on the data of coming 5 years received from the DISCOMs. The LTDF report for the period 2010-19 is submitted to Hon’ble OERC during May’10 for kind approval.
(3) Long Term Perspective Transmission Plan.
OPTCL ensures development of an effective and economical system of Intra-State and Inter-State transmission lines for smooth flow of electricity from generating station to Load center.
The infrastructure of OPTCL network is as follows.
The present peak demand of the state is around 3000MW, which is handled by the existing network of equipment of the system. To improve the low voltage problem in some of the Grid Sub-Stations, action has already been initiated to install 275MVAR shunt capacitors.
According to the long term demand forecast, the peak demand of Orissa at the end of 11th and 12th plan period will be to the tune of 4459MW and 6363MW respectively. Besides the above projection , in the mean time a number of IPPs have signed MOUs with Govt. of Orissa to install power plants in Orissa. It is expected that at the end of 12th plan period the quantum of power generated by these IPPs will be of 20000MW and Orissa will avail the state share of 25% i.e. about 5000MW . Therefore Orissa Transmission System needs to be planned to handle the upcoming load which will cater to the load requirement of different up-coming industries and schemes like REC,RGGVY and BGJY.
Planning is required for a healthy transmission system to extend uninterrupted, quality and reliable power supply. Alternative source of supply is to be made available at all Grid Sub-Stations to avoid total power failure in the region due to fault in single source of supply. All the Grid Sub-Stations is to operate in a ring arrangement. In view of the above , OPTCL has prepared a comprehensive system planning of its network, by M/S PRDC Ltd., Bangalore. Planning is made to prevent overloading wherever possible by load diversion and taken up innovative measures for system loading of its existing network. Effective utilization of new lines and their impact on transmission loss is being taken care.
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