The projects under this scheme were taken up in two parts:
Owing to the benefits of geospatial technology, the Union Ministry of Power (MoP) has mandated its usage in the National Electricity Policy and Integrated Energy Policy.
Being a core GIS company with a complete range of geospatial solutions, we took up the challenge of executing the process of DGPS survey, mapping, GIS data creation and integration under R-APDRP Part-A in nearly 100% of the selected towns of West Bengal, Assam, Mizoram, Arunachal Pradesh etc. under coverage of the scheme.
The process of base map creation started with the collection of various kinds of inputs including satellite images, control points along with sketches and projection parameters. The image quality of the satellite inputs was enhanced using image processing techniques for reduction of haze, edge enhancement and tonal variation.
Some of the steps implemented for base map development are mentioned below:
The primary purpose of the technical audit was the development of the Single Line Diagram (SLD) of the electrical substation. An SLD provides a clear picture of the assets and their connectivity to the substation. The steps for accumulating the data included the following:
The objective of Network Survey was to geographically map each electrical network asset including 66/33, 66/11, 33/11 kV electricity substations, HT (66, 33, 11kV) overhead lines/underground cables along with associated line equipment such as Poles, RMUs, Distribution Transformers, Capacitors etc. and also LT overhead lines and underground cables along with associated equipment such as poles, feeder pillar boxes etc. on the geo-referenced base maps of the specified areas using DGPS technology maintaining sub-meter accuracy level.
The mapping activity also comprised collecting and updating the various attributes of Electrical network entities as per finalized Data Model approved by the utility. The attributes thus collected were linked to the corresponding Network elements which had been mapped through field survey. Consequently, a one-to-one linkage was created for any further data retrieval and analysis.
All surveyed and mapped electrical equipment were codified based on the codification logic approved by the Utility team. The asset numbers provided in the Codification Document were painted on the surfaces of all Poles and Distribution transformers as per the specifications provided by the Utility team at the commencement of the project. The following steps were implemented:
Consumer indexing is a unique method of enumerating all types of electricity consumers into a single database structure with the help of pre-determined attributes connected to a uniquely coded electrical network including locations with the help of GIS tools to retrieve information. The primary components of consumer indexing include door-to-door consumer data collection and the preparation of a uniquely indexed consumer database.
The methodologies implemented for consumer indexing for the R-APDRP scheme are mentioned below:
The executed volumetric for this project consist of the following figures:
We have been working on this scheme since 2009 and are continuing with the related activities. So far, the R-APDRP project has been completed in West Bengal, Assam and Mizoram. We met the deadlines and the client found the work satisfactory.