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Fixed-hour power supply for rural sectorFarmers to get compensation for cuts

Under the RLMS, a timer device would automatically ensure power supply at presettiming and duration. In case a power cut was imposed for any reason during the

scheduled time and period, the farmers of that particular area would be compensatedwith in 24 hours. Thus, the farmers would definitely get power for a period that had beenscheduled for the sector.

The system would be controlled from a centrally located control room at the circle office.

The control room would receive inputs from each transformer for agriculture sectorsupply, including load pattern, consumption, quantity of power supplied and timings.

the voluntary disclosure scheme (VDS) for unauthorised load on tubewells the chargesfor load extension like advance consumption security for increased load.

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ProjectRural Load Management System (RLMS), Ranebennur &

Ghataprabha, Karnataka

Location Ranebennur & Ghataprabha, Karnataka

Type of Project Power Distribution

Concession Authority/Client Hubli Electricity Supply Company Limited (HESCOM)

Contract Value INR 868 Mn ; USD 22 Mn

This project is a rural electrification initiatives. Rural electrification is identified as one of

the four priority areas in order to ensure increasing growth and bringing of pro-poor

orientation in the growth process.

By introducing RLMS, Distribution Transformer centers having IP loads, power supply

can be arranged for a limited period to IP loads and 24 hours to other domestic/commercial

loads, without increasing the capacity of the distribution transformer and with available

generated power.

Extension of new 11 kV lines

Extension of new LT lines Erection of new Distribution Transformers centers

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Shifting DTCs to load centers

Providing intermediate supports

Strengthening of LT lines----

Power Quality Improvement Projects:

The BU undertakes power quality improvement projects, sponsored by the Government of

India / Ministry of Power such as:

RGGVY (Rajiv Gandhi Grameen Vidyutikaran Yojana) scheme

APDRP (Accelerated Power Development and Reform Programme) scheme

The spectrum of services offered includes:

Design & Construction of High voltage distribution substation (33/11kV) including

installation and re-conductoring of existing lines

Rural Electrification works involving installation of 11kV low voltage overhead lines,

distribution transformers as well as feeder renovation works & metering

Urban Area Power Quality improvement Projects involving renovation/upgradation of

distribution transformers and installation of 11 kV LT lines

Rural Load Management Systems involving supply and commissioning, mapping

of networks including load flow studies and transformer selection

Reference:

http://www.larsentoubro.com/lntcorporate/LnT_Offerings/Service_Template1.aspx

?res=P_CORP_BOFF_SBU_SERV&srid=503&sbu=49

A rural energy system based on energy

forest and wood gasifier

Ravindranath, NH and Dattiprasad, HL and Somashekar, HI (1990)A rural energy systembased on energy forest and wood gasifier. In: Current Science, 59 (11). pp. 557-560.

ABSTRACT: A decentralized electricity generation system using a 5 kW wood

gasifier has been installed for electrification in a non-electrified village. All the 43

houses in the village are provided with two lighting points each in addition to

eight street lights. An energy forest has been raised and an annual productivity

of 6.4 tonnes per hectare has been recorded compared to an annual wood fuel

requirement of 5.1 tonnes for the gasifier. A diesel substitution level of 73% has

been achieved in the field. The use of electricity for lighting has saved 0.803

tonne of kerosene per year in the village. Economic analysis has been carried out

for the wood-gas-based system. The study has demonstrated the technical

http://www.larsentoubro.com/lntcorporate/LnT_Offerings/Service_Template1.aspx?res=P_CORP_BOFF_SBU_SERV&srid=503&sbu=49http://www.larsentoubro.com/lntcorporate/LnT_Offerings/Service_Template1.aspx?res=P_CORP_BOFF_SBU_SERV&srid=503&sbu=49http://www.larsentoubro.com/lntcorporate/LnT_Offerings/Service_Template1.aspx?res=P_CORP_BOFF_SBU_SERV&srid=503&sbu=49http://www.larsentoubro.com/lntcorporate/LnT_Offerings/Service_Template1.aspx?res=P_CORP_BOFF_SBU_SERV&srid=503&sbu=49

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feasibility of a decentralized electricity generation system based on renewable

source of energy, which has been accepted by the village community.

Read the PDF for full information:

Analogics Tech India Limited, an ISO 9001:2008 company, specialized in design, development andManufacturing of wide range of products for Power Sector. Analogics has the track record of providingstate-of-the-art product range and turnkey projects various the electricity utilities in the country.

Analogics has a market share of about 95% for Spot Billing Machines and a major share in CommonMeter Reading Instruments (CMRI) in India. With the profound reputation, Analogics takes pride inquick deployment of innovative and cutting edge solutions.

Roster scheduling is being introduced for the distribution of power to the rural agricultural loads, toensure three-phase supply for 7 or 8 or 9 hours/day and single-phase supply throughout the day. TheDistribution Rural Management System shall ensure the operation of the contactors for variousbusbars fed from LT side of the 3 phase distribution transformer. The equipment is a Multi Processorbased monitoring, control & data login system for the three-phase distribution transformer. Thesystem will monitor the voltages, currents information of the distribution transformers and the Rosterschedules loaded into the memory. It will store the duration of three-phase and single-phase supplytimings in a day. During single-phase period, if the three-phase supply is present, the system willautomatically trips the circuit breaker and the event will be recorded in the memory. The duration ofthree phase power supply and single-phase power supply, date, time and schedules status will bedisplayed continuously in scroll mode. Facility is given to modify the schedule from the system keypador (optionally) using the Hand Held Terminal with a password. The daily data like the duration ofthree-phase supply, single-phase supply and total power-on time will be stored in the memory up to40 days. This data can be retrieved using the Hand Held Terminals or through GSM modem at remotemanagement cell

User Friendly

Reliable Scheduler

Dependable Information Source

Adaptable to any Distribution Transformer

Over Load Protection

Versatile through Programmability Relay Driver outputs

Digital Inputs

Features

Trips the contactor of the distribution transformer as per the schedules with autocompensation

Facility for remote operation through PSTN / GSM modems (optional)

Remote Operation of Transformers and data acquisition

100% Tamper proof operation in maintaining the schedules

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Password protection for preparing the schedules

Rugged industrial casing confirms to IP55

GSM modem for remote logging (optional)

Hand Held Terminal for data downloading (optional)

User Friendly

Reliable Scheduler

Dependable Information Source

Adaptable to any Distribution Transformer

Over Load Protection

Versatile through Programmability

Relay Driver outputs

Digital Inputs

Advantages

Scheduling of feeders

Uniform distribution of load on the Transformer

Restricts the use of phase converters Recording of important events

Generation of Distribution Transformer wise reports

Transformer protection through temperature / load monitoring

Software

Rural Load Management System software is a front end, user friendly software, which will be veryuseful in collecting the data from various Distribution Transformers through telephone line or throughhand held terminal. The collected data can be analyzed through systematic reports and powerfulgraphical presentation. The software also available for modifying the schedules etc.

Operating VoltageSingle phase AC supply from 85 V to 285 V.

Technical Specifications

Processor : High Speed Processor at 18 MHz Clock speed

Display : 4 line by 20 character, Alphanumeric LCD display with back-light for better menus and parameters scrolling and for userfriendly operations

Real Time Clock : Real Time Clock with 20 year calendar with Battery Backup

Serial Port forCommunication

: High Speed (57K baud) RS232 port for upload / download ofdata and also to communicate to the modem

Power Supply : 220V/110V DC from substations battery (or optional 24V DC)

Key Board : 24 Key (4 x 6) sealed Elastometeric with direct key operations

Relay Driver Outputs : 4 High Current relay outputs (Optional 6) to trip the contactors.

Memory : i) Program Memory 64K (Flash)ii) Data Memory 4MB (Expandable to 8MB)

Protection : EMI, RF interface protection, input voltage fluctuations andtransients protection

Environmental : i) Operating Temperature : -5 to 65 Cii) Relative humidity : 90% non-condensingiii) IP-52 : Dust protected and immune to water spray / rain

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-----

DG (distributed generation) is defined as installation and operation of small modular power generatingtechnologies that can be combined with energy management and storage systems. It is used toimprove the operations of the electricity delivery systems at or near the end user. These systems mayor may not be connected to the electric grid.

A distributed generation system can employ a range of technological options from renewable to non-renewable and can operate either in a connected grid or off-grid mode. The size of a distributedgeneration system typically ranges from less than a kilowatt to a few megawatts.

Technological options

DG options can be classified either on the basis of the prime movers used?engines, turbines, fuelcells?or on the basis of fuel resources used?renewable and non-renewable. In India, many renewableenergy technologies are being employed in a number of distributed generation projects. Thetechnologies include biomass gasifiers, solar thermal and photovoltaic systems, small wind turbines(aero-generators), and small hydro-power plants. The figure illustrates the technology options fordistributed power generation.

Relevance of distributed generation in India

In India, distributed generation has found three distinct markets.

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Back-up small power generation systems including diesel generators that are being used inthe domestic and small-commercial sectors.

Stand-alone off-grid systems or mini-grids for electrification of rural and remote areas.

Large-captive power plants such as those installed by power intensive industries.

Distributed power generation systems are needed to address the following issues.

High peak load shortages? With a deficit of 12.3% in peak demand, distributed generationsystems that can reduce the peak demand is seen as the most effective solution to theproblem.

High transmission and distribution losses?Current losses amount to about 35.03% of the totalavailable energy. Distributed power generation systems can greatly reduce these losses andimprove the reliability of the grid network.

Remote and inaccessible areas? In many parts of the country extension of the grid may notbe economically feasible. In such cases distributed generation can play a major role.

Rural electrification? Rural electrification has been identified as a priority for ruraldevelopment by the Government of India. Wherever grid extension is not feasible, thegovernment has directed that decentralized distribution generation facilities with localdistribution network be provided.

Faster response to new power demands? The modular nature of distributed generationsystem coupled with low gestation period enables the easy capacity additions when required.

Improved supply reliability and power quality??Disruptions such as grid failure, etc., can beprevented as electricity is produced close to the consumer. The quality of power? voltage andfrequency?can also be maintained easily.

Possibility of better energy and load management?Distributed generation systems offer thepossibility of combining energy storage and management systems.

Optimal use of the existing grid assets? Inadequacies in distribution network has been one ofthe major reasons for poor supply of power. Distributed generation facilitates an optimal useof the grid that improves the reliability of the grid network and reduces the congestion.

Policy context for distributed generation

The Integrated Energy Policy of the Planning Commission of the Government of India envisionsenergy security for the country and its citizens by stating that energy services should be safe, reliable,techno-economically viable, and sustainable considering different forms and fuels of energy?conventional as well as new, alternate sources.

The Electricity Act, 2003 has also given a thrust to distributed generation particularly in the context ofrural electrification. The Act, in addition to grid extension as a mode for rural electrification, specifiesdistributed generation and supply through stand-alone conventional and renewable energy systems. Italso includes the distribution of electricity through NGOs, local government units, community groups,and franchisees of distribution utility as alternate modes for rural electrification.

Further, the Act indicates that persons setting up new projects and/or extending existing infrastructurefor composite schemes of generation and distribution are exempt from licensing and licensee related

obligations.

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The National Electricity Policy notified on 12 February 2005 mentions under the Rural Electrificationcomponent, section 5.1.2 (a) that to provide a reliable rural electrification system, a RuralElectrification Distribution Backbone be established by extending the transmission lines. However,when the extension is not feasible, as in section 5.1.2 (d), it directs that decentralized distributedgeneration facilities (using conventional or non-conventional sources of energy) together with localdistribution network be provided.

Also, in compliance with sections 4 and 5 of the Electricity Act 2003, the central government preparedthe Rural Electrification policy. The policy in section 3 (3.3) identifies decentralized distributedgeneration of electricity by setting up of facilities together with local distribution network based oneither conventional or non-conventional resources methods of generation.

Two specific schemes of the Government of India, the RGGVY (Rajiv Gandhi Grameen VidyutikaranYojna) and the RVE (Remote Village Electrification) scheme, provide upto 90% capital subsidy forrural electrification projects using DDG (decentralized distributed generation) options based onconventional and non-conventional fuels respectively.?