Data Collection/Compilation of Existing System:
For convenience in operation and administration, the area covered through a circle is divided into divisions and sub-divisions although the electrical network in the circle remains one single linked entity. It is likely that some feeder(s)/substation(s) might get interconnected to other circles through switch (es)/ metered point(s) that may be provided for the reasons. Detailed data about the existing power system should be collected in respect of the following:
a Category-wise number of consumers and connected load, involving the bulk consumer details such as
1 Contract Demand;
2 Maximum Demand;
3 Energy Consumption; and
4 Supply Voltage.
b Peak demand MW/ MVAR - simultaneous and non simultaneous
c Annual Energy Consumption - Energy balance sheet
d Geographical Map (to scale) of the area depicting Transmission and Sub-transmission System.
e Source(s) of power supply/Grid substation(s) supplying power to the area
1 Existing substations;
2 Existing lines.
f Sub-transmission System
1 Existing 66-33/11 kV substations and existing 66-33 kV lines;
2 Under construction substations;
3 Under construction 66/33/11 kV lines.
g Distribution System
1 11 kV lines;
2 Distribution transformers; and
3 LT lines.
h Operational Parameters
1 Substation equipment status;
2 66/33 kV feeder breakdowns;
3 Failure of distribution transformers;
4 Tripping on 11 kV feeders/ lines; and
5 Consumer outages.