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Introduction
The power distribution network consists of EHT (extra high tension ,above 33 KV ) and HT (high tension ,11 KV to 33 KV) lines, LT ( low tension lines) ,substations ,distribution transformers , pillar boxes e.t.c feeding a network of consumers. Maintenance of a global information system of the above on the Geographical platform becomes an absolute necessity in the changing scenario where consumer satisfaction is the prime motto.

Current problems

• Data related to distribution network are held within the utility in different relational databases and files, using different operating systems and user interfaces. These ”systems” are overlapping,unsynchronized and not even updated regularly.
• Holding the large amount of data, with no relations among data.
• The great effort required to collect, input and verify the data
• Usage of alphanumeric data as input for network planning is usually accompanied with the lack of information on existing network topology, elements connectivity, geographical locations of the network elements, possible new cable routes and the complete lack of possibility to perform spatial queries and analyses. This proves that relational databases without some improvements and additions are not very well suitable for network planning.
• The information is always confined to some user departments and accessing this information becomes a Herculean task interdepartmentally and upto the lowest level management .

Relevance of GIS
The host of these problems can be easily overcome by integrating the different information systems with GIS as the kernel for synchronized operation as shown in Fig.1,2 and 3 below.


Figure1. GIS in synchronization with other Information Systems.



Figure 2. GIS as the Kernel for other Information Systems



Figure 3 Transmission of Information.

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