Urgency for Electricity Distribution Reforms in India & GoI Initiatives

Urgency for Electricity Distribution Reforms in India & Government Initiatives

SUDHIR KUMAR SRIVASTAV

Additional General Manager

NTPC LIMITED, NEW DELHI

Sudhirksri1@gmail.com

Abstract -This paper gives an insight of present techno-commercial status of electricity distribution sector in India, its importance in power sector value chain, urgency of electricity distribution reforms in India for financial viability & sustainable growth and government initiative on reforms.

Current Status:

Power Distribution Business is a vital link in Power Sector, as entire collections of energy charges are collected by this business and distributed to entire value chain.  Power Sector cannot be viable without sound Distribution Sector. Present status of Power Distribution in India is as below:

·        Facing enormous problems like:

Ø High Aggregate Technical & Commercial Losses (AT&C Losses).

Ø Non Revision of Tariff in many states.

Ø Free Power Supply for Agriculture Sector.

Ø Cross Subsidy in tariff.

·        AT&C losses are to the tune of 27.15% as on FY 2009-10.

·        Gap between Average cost of supply & Average Revenue Realised per unit of input energy is 145 Paisa i.e. with supply of every KWH there is a loss of 145 Paisa.

·        Accumulated losses are to the tune of 1.9 Lac Crore.

·        Most of the Distribution companies are not able to serve their debt.

·        The losses comprise more than 1.5% of nation’s GDP.

·        Quantum numbers of people don’t have access to electricity.

Urgent Need:

An enabling infrastructure, environment and proper systems to bring about sustainable and pervasive improvements, which requires radical change across the entire distribution business through improved operational processes, leveraging best practices in information technology.

Approach to be adopted:

As electricity is one of the most sensitive basic infrastructure services, condition of electricity distribution services is highly dependent on local conditions, particularly people´s culture.

Every approach for improvement of existing services must be based on the analysis of the local conditions and, therefore, “tailor made” solution is required. There are no “imported solutions” that can be automatically transferred in India.

Required change in existing Management Approach:

·        It is important to avoid the use of the “monopolist excuses” like:

Ø Nobody knows their business better than they do.

Ø There are always external reasons to explain current bad performance.

“A CHANGE IN MANAGEMENT PRACTICES IS NEEDED”

·        To improve management, it is essential to increase TRANSPARENCY across the whole organisation. Reliable corporate information must be available and circulated fluently throughout the company.

Ø Support provided by IT becomes critical.

Ø Management Information Systems (MIS) are essential tools.

·        A “tailor made” approach for improvement of management of DISCOMS requires to actually design and implement a comprehensive ªManagement Improvement Plan (MIP)”.

·        It is essential to define all the Processes and Activities (P&A) to be included in the MIP, the sequence for their execution and existing interrelations, as well as the human, material and financial resources required for proper performance.

·        TRANSPARENCY in availability and use of information related to DISCOM operations is the key for improvement in management

·        MANAGEMENT INFORMATION SYSTEMS (MIS) are the “key tools” that allow to get reliable  information and to handle it transparently

·        COMMERCIAL MIS: supports all the functions related to commercial relation between the utility and its customers. Regular activities of the so called “commercial cycle”: metering, billing and collection (including recovery). Proper execution of these activities is the best way to REDUCE COMMERCIAL LOSSES.

·        Commercial attention of customers (personal at commercial offices, by phone through the call-centre, by Internet, etc.)

Benefits of leveraging Information Technology in Distribution Business:

·        Profitability improvement through:

Ø Revenue enhancement

Ø Cost reduction

Ø Commercial and Technical loss reduction

Ø Reduced cycle time from consumption to collection

·        Enhanced customer satisfaction through:

Ø Improvement in reliability and quality of power supply

Ø Improved handling of customer complaints

·        Other gains -

Ø Operational efficiency through effective decision support.

Ø Flattening of peak demand curve by better load management

In order to achieve above objectives, need for adoption of integrated IT system by utilities was recognized and hence, MoP, GoI launched Restructured APDRP (R-APDRP) in July 2008 as a central sector scheme. Scheme is base on adoption of IT system for verifiable loss level & better administration, followed by regular system strengthening.  The RADRP grant to utilities are purely performance based to increase accountability of utilities towards reform and improvement. Towns and cities with population of more than 30,000 (10,000 in case of special category states) as per census-2001 are covered under R-APDRP scheme.

MoP, GoI is targeting the revival of State distribution utilities through fund infusion under R-APDRP on actual, demonstrable performance in terms of sustained loss reduction. R-APDRP schemes are in two parts:

Part-A: Establishment of transparent & verifiable baseline data through IT intervention, along with GIS, MDAS etc. & SCADA/DMS for large towns.

Part-B: Regular distribution strengthening.

PART- A Main components:

·        Installation of AMR on Distribution Transformers and Feeders.

·        IT for integrating Meter reading, Billing & Collection, Energy accounting & auditing and Management Information System (MIS).

·        GIS Mapping of the entire distribution network & Consumer indexing.

·        Automatic Data Logging / SCADA for big towns.

·        Establishment of IT enabled consumer service centers.

All the major business process of a utility is proposed to be IT enabled on a common integrated hardware and software architecture & approach shall be modular.

Proposed Distribution Business Processes under Integrated IT deployment plan are:

·        Metering, Billing and Collection (MBC)

·        New Connection

·        Disconnection and Dismantling

·        GIS based Consumer Indexing, Asset mapping and Network Analysis

·        Maintenance management

·        Asset Management

·        Customer Care Centre

·        Management Information System

·        Meter Data Acquisition

·        Energy Audit

Benefit from Part-A modules:

·        Better administrative control through accurate MIS.

·        Accurate energy accounting & establishment of Verifiable loss level at each voltage level.

·        Identification of loss pockets for theft control.

·        Better consumer service for consumer satisfaction.

·        Well documented & established business process.

·        Better network management & inventory control.

·        Better resource planning for cost optimisation.

·        SCADA/DMS for more reliable & quality power.

Part-B schemes are provisioned for:

·        Regular distribution network up-gradation.

·        Use of energy efficient Transformers.

·        Use of AB cable & HVDS in theft prone area.

·        Shifting of meters to outside of consumer premise.

·        Replacement of sluggish meters & damaged service connections.

·        Underground cabling for better aesthetic look.

·        Capacitors for PF improvement & loss reduction.

With above works, losses can be reduced by controlling theft, controlling overload, minimizing unbalance, improving Power Factor etc. Also break down will be minimised & reliability of power will improve.

Apart from R-APDRP scheme, GoI has also introduced following program for sustained development of Electricity Distribution Sector:

1.  Rajiv Gandhi Gramin Vidyutikaran Yajna (RGGVY:

·         Rajiv Gandhi Grameen Vidyutikaran Yojana was launched in April-05.

·         Under the programme 90% grant is provided by Govt. of India and 10% as loan by REC to the State Governments.

The RGGVY aims at:

·         Electrifying all villages and habitations as per new definition.

·         Providing access to electricity to all rural households

·         Providing electricity Connection to Below Poverty Line (BPL) families free of charge

Infrastructure under RGGVY :

·         Rural Electricity Distribution Backbone (REDB) with 33/11 KV (or 66/11 KV) sub-station of adequate capacity in blocks where these do not exist.

·         Village Electrification Infrastructure (VEI) with provision of distribution transformer of appropriate capacity in villages/habitations.

·         Decentralized Distributed Generation (DDG) Systems based on conventional & non conventional energy sources where grid supply is not feasible or cost-effective.

Implementation Methodology and conditions under RGGVY :

·         Preparation of District based detailed project reports for execution on turnkey basis.

·         Involvement of central public sector undertakings of power ministry in implementation of some projects.

·         Certification of electrified village by the concerned Gram Panchayat.

·         Deployment of franchisee for the management of rural distribution for better consumer service and reduction in losses.

·         Undertaking by States for supply of electricity with minimum daily supply of 6- 8 hours of electricity in the RGGVY network.

·         Making provision of requisite revenue subsidy by the state.

·         Determination of Bulk Supply Tariff (BST) for franchisee in a manner that ensures commercial viability.

·         Three tier quality monitoring Mechanism for XI Plan Schemes made mandatory.

·         Web based monitoring of progress.

·         Release of funds linked to achievement of pre-determined milestones.

·         Electronic transfer of funds right up to the contractor level.

·         Notification of Rural Electrification Plans by the state governments.

2.  National Electricity Fund:

The Cabinet Committee on Economic Affairs approved setting up of the National Electricity Fund (Interest Subsidy Scheme) to provide interest subsidy etc. aggregating to Rs.8466 crore for a period of 14 years for projects of electricity distribution sector.


The National Electricity Fund (Interest Subsidy Scheme) is being set up to provide interest subsidy on loans to be disbursed to the Distribution Companies (DISCOMS) - both in the public and private sector, to improve the distribution network for areas not covered by Rajiv Gandhi Gramin Vidyutikaran Yojana (RGGVY) and Restructured Accelerated Power Development and Reforms Programme (R-APDRP) project areas, The preconditions for eligibility are linked to certain reform measures taken by the States and the amount of interest subsidy is linked to the progress achieved in reforms linked parameters.

3.     Financial Restructuring of State Distribution Companies :

The Cabinet Committee on Economic Affairs approved the scheme for Financial Restructuring of State Distribution Companies (Discoms). The scheme contains various measures required to be taken by State Discoms and State Governments for achieving the financial turnaround of the Discoms by restructuring their debt with support through a transitional finance mechanism by the Central Government. Support under the scheme will be available for all participating State owned Discoms on fulfilling certain mandatory conditions.

The salient features of the scheme are as follows:

a)     50 percent of the outstanding short term liabilities upto March 31, 2012 to be taken over by State Governments. This shall be first converted into bonds to be issued by Discoms to participating lenders, duly backed by State Governments guarantee.

b)    Takeover of liability by State Governments from Discoms in the next 2-5 years by way of special securities and repayment and interest payment to be done by State Governments till the date of takeover.

c)     Restructuring the balance 50 percent Short Term Loan by rescheduling loans and providing moratorium on principal and the best possible terms for this restructuring to ensure viability of this effort.

d)     The restructuring/reschedulement of loan is to be accompanied by concrete and measurable action by the Discoms/States to improve the operational performance of the distribution utilities.

e)     For monitoring the progress of the turnaround plan, two committees at State and Central levels respectively are proposed to be formed.

f)      Central Government will provide incentive by way of grant equal to the value of the additional energy saved by way of accelerated AT&C loss reduction beyond the loss trajectory specified under RAPDRP and capital reimbursement support of 25 percent of principal repayment by the State Governments on the liability taken over by the State Governments under the scheme.

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Road Map for Electricity Distribution Reforms

Road Map to Electricity Distribution Reforms

 

SUDHIR KUMAR SRIVASTAV

Addl. GM - RAPDRP

NTPC LIMITED, NEW DELHI

Sudhirksri1@gmail.com

Reasons for adoption of Distribution Reform

1. Poor Commercial Performance:
• Very poor Metered Energy : Input Energy.
• Very poor billing efficiency & collection efficiency.
• Complicated Metering, Billing & Collection (MBC) System.
• High Aggregate Technical & Commercial (AT&C) Loss
• Average Revenue Realised (ARR) is much below than Average Cost of Supply (ACS).
• Inadequate Anti Theft Measures.
• Lack of accountability/responsibility in officers.

2. Poor Reliability: 
• Unplanned expansion.
• Poor condition monitoring of equipments.
• Unreliable protection.
• High DT failure.
• High feeder outage.
• Low HT:LT Ratio.
• Low Power Factor.
• Poor Record Keeping.

3. Old Technology & lack of IT intervention 

4. Non-importance to capacity building and technical up-gradation.

 
 

Road Map

For improvement in commercial Performance:

1. GIS based Consumer Indexing and Asset Mapping should be done along with preparation of feeder wise and DT wise consumer books. Policy should be formulated for new connection so that no new connection should be allowed before allotment of Consumer Indexing Number (CIN). Monthly report on category wise new connection should be prepared.

2. Ring fencing of energy at interface points should be done.

3. MBC should be made transparent and linked with Consumer Indexing data base. All the three activities should be done by single agency. Metering efficiency should be around 90%, billing and collection efficiency should be more than 95%.

4. Energy meters with digital interface should be installed on all industrial and commercial consumers. Metering of these consumers should be done through MRI, without any human interference. Automatic Meter Reading (AMR) can also be adopted for above consumers.

5. Consumer meters should be brought out of the premises of consumer. Preferably the meters should be installed on pole mounted meter boxes. Distinctly visible joint less overhead service connection should be provided to avoid the chances of theft of electricity. In case of any difficulty on bringing out the consumer meter on pole, check meter should be installed on the pole to counter check the consumed energy by consumer.

6. Stringent checking of contracted load of each consumer w.r.t. Supply Code provisions for calculating contracted load. Annual verification of the same shall be strictly monitored.

7. Feeder managers should be made responsible and accountable of 11 KV feeder for energy audit/accounting, profit/loss accounting and outage of the feeder. One feeder manager should not have more than 03 feeders in his jurisdictions.

If sufficient feeder manager is not available, the O&M and MBC of feeder should be out sourced on individual feeder wise with fixing of benchmark targets on reliability index and ARR on flow of energy on the feeder. If possible the complete Primary Sub Station (PSS) can be out sourced for all the electricity distribution activities with fixing the benchmark target and formulating penalties on non-adherence of benchmark/agreed targets.

8. SDO/AE should be made accountable and responsible for energy audit / account, profit/loss account and outage of each 33 KV feeder and connected PSS. He should also be made responsible for adherence of Supply Code in his area.

9. Executive engineer should be made accountable and responsible for energy audit/account and profit/loss account of the energy received in the division. He should be made responsible for adherence of Supply Code & Electricity Act.

10. CEO/DGM should be made responsible and accountable for profit/loss of whole circle, which includes cost of power purchase, O&M expenditure, establishment expenditure etc. Complete balance sheet and profit/loss account should be prepared at circle level and the same should get audited on yearly basis. He should be responsible for all Acts & Regulations.

11. Bimonthly billing of domestic consumers should be converted to monthly billing and status report/techno-commercial report should be prepared within 20 days so that timely corrective action may be taken. Breakup of 20 days schedule shall be as below:
• Preparation of bills                                          :           03 days
• Distribution of bills                                         :           05 days
• Realisation of bills                                          :           10 days
• Preparation of techno-commercial report        :           02 days

12. High Voltage Distribution System (HVDS) should be adopted for Private tube well consumers and rural consumers if any.

13. HVDS along with Arial Bunched Conductor (ABC) shall be adopted for theft prone area.

14. Un-metered consumers should be identified, provide meters for them and all the energy flow to consumers should be metered.

15. Anti theft measure should be made more stringent. Anti theft police squad may be increased. Analysis should be done on effectiveness of police squad by reviewing the expenditure on the squad and realization of theft energy.

16. Condition monitoring & routine checking of DTs and Sub-Station equipments should be done to reduce DT failure rate and improve reliability.

·         Format for the condition monitoring for PSS equipment is as per annexure A.

·         Checklist of distribution transformer & power transformer is as per annexure B.

17. Locations and capacity of Distribution transformers should be re-arranged considering the present loading of DTs and analyzing load center.

18. Policy should be formulated for installation of DT capacitors to achieve the power factor >= 0.95.

19. Data logging & computerisation work of electricity disdtribution business should be done in true spirit to derive the benefits for system analysis and minimize human intervention.

20. Business plan re-engineering and Integrated IT implementation shall be adopted to improve:

Ø  Record keeping

Ø  System analysis and fault finding

Ø  Transparency in system

Ø  Accountability in human resource.

 

For improvement in technical Performance:

Preventive maintenance, condition monitoring & proper documentation of sub-station equipments shall be done in following way:

Switchgear

1. All the 33KV & 11 KV incomers, Bus Couplers, Outgoing feeders and Power transformers should have dedicated circuit breakers with healthy protection system. Name of feeder, code, etc. should be properly painted on all the panels in a uniform manner.
2. All 33 KV & 11 KV panel covers should be properly closed and gland hole should be properly sealed.
3. All the breakers should be able to trip electrically both on manual operation and under fault conditions.
4. Ammeters, Voltmeters, Wattmeter and P.F. Meter should be available on all the feeders, incomers and bus coupler panel and should be in order.
5. Electronic energy meters with digital interface should be available on all the incomers and feeders. Energy accounting of the Sub-station should be done through MRI or AMR.
6. System should be connected with computerized data logging for proper analysis of data and generation for exception report without any human intervention.

Batteries & Battery charger: 

1. The batteries should be well insulated & supported on wooden structure/frame.
2. Periodical check up of electrolyte specific gravity and cell voltage should be done and recorded.
3. Battery charger should be in working order and connection with battery should be firm and properly dressed.

Power Transformer:

Common causes of Power transformer failure are:

·         Inadequate protection.

·         Absence of Lightening Arrestor.

·         Deteriorating condition of oil & insulation.

·         Frequent switching.

·         High level of harmonics.

·         Improper repair (for repaired transformers).

·         Overloading & unbalance.

Preventive measures:

·         Lightning arresters should be available on all the three phases near the transformers.

·         Power transformers should be free from any oil leakage.

·         Oil level should within the range indicated in the level gauge on the conservator.

·         Protective relays, tripping status and alarm system of the transformer should be healthy.

·         Better quality of transformer repair should be ensured with stringent checks.

·         Routine check and test should be done on power transformers. (Checklist at Annexure-B).

·         Yearly testing of Power Transformer should be done for following minimum test:

Ø  No load current / Magnetising current for observation of core loss.

Ø  Short circuit test.

Ø  Transformation Ratio test.

Ø  Magnetic balance test.

Ø  Winding resistance measurement.

·         Condition monitoring tests of transformer oil should be done for following minimum test on yearly basis:

Ø  Transformer oil Break Down Voltage (BDV) test

Ø  Moisture content in transformer oil.

Ø  Oil resistivity and Tan Delta test

Ø  Dissolve Gas Analysis (DGA) test.

·         Silica gel in the breather should be dry and blue in color. The oil cup in the breather should be filled with oil.

·         Winding and oil temperature indicators should be in order.

·         Transformer rating & diagram plate should be in order.

·         Transformer grouting and earthings should be in order.

Distribution Transformers:

      Common causes of distribution transformer failure are:

·         Inadequate protection, absence of LA, MCCB, HT fuse etc.

·         Lack of condition monitoring.

·         Overloading & unbalance loading.

·         Poor earthing.

·         Deteriorating condition of oil & insulation.

·         Frequent switching.

·         High level of harmonics.

·         Improper repair (for repaired transformers).

Preventive measures:

·         Identification code to be marked on each Distribution Transformer.

·         All the Distribution Transformers should have Electronic energy meters with digital interface. MRI based reading of DT meters should be done for energy audit, load current, neutral current, unbalance current etc and take corrective action after analyzing above data.

·         Distribution Transformer should be mounted either on plinth or poles and should be properly fenced. Danger plates should be provided on each DT.

·         All Distribution Transformers should have LA, MCCB, TPMO with HT fuses of proper rating.

·         Routine check and test should be done on Distribution transformers as per checklist at annexure-B.

·         If possible, harmonic suppressor should be installed at LT side of Distribution Transformer.

·         Distribution Board with proper fuse ratings should be provided on LT side of the DT.

·         Maximum LT current for different Distribution Transformers are:

v  250 KVA        :           350 Amp

v  400 KVA        :           550 Amp

v  630 KVA        :           880 Amp

v  1000 KVA      :           1390 Amp

Maximum permissible current on different conductors are:

v  Weasel             :           150 Amp

v  Raccoon          :           250 Amp

v  Dog                 :           310 Amp

Considering above permissible currents, the LT lines with different distribution transformers should be as below:

Ø  DTs of 100 KVA & below can run with single LT circuit of Weasel conductor.

Ø  250 KVA DT should be connected with 02 Nos. LT circuit of Raccoon conductor.

Ø  400 KVA DT should be connected with 03 Nos. LT circuit of Raccoon conductor OR 02 Nos. LT circuit of DOG conductor.

Ø  630 KVA DT should be connected with 04 nos. LT circuit of Raccoon conductor or 03 Nos. LT circuit of DOG conductor.

Ø  1000 KVA DT should be connected with 05 Nos. LT circuit of DOG conductor.

33 KV and 11 KV Lines:

1. Periodical patrolling and inspection of HT lines should be carried out such that every HT line is inspected at least once in a month. Hot spots, sparking, if found should be attended immediately.
2. Preventive maintenance of HT lines should be carried out thrice a year (pre- summer, pre-monsoon & autumn). All loose connections, blackened lugs, clamps etc. and damaged/leaky insulators should be replaced. All the trees fouling with the lines should be trimmed out. All the foreign material e.g. kites, strings etc. falling on the line should be removed.
3. Earthing & earth resistance of the poles should be checked once in a year.
4. Ensure the availability of earth guard wire and its healthiness at vulnerable points like road crossings, vicinity of LT lines, etc.
5. Poles, cross arms etc. should be painted with red oxide and aluminum paint.
6. Routine checks on healthiness of stay wires.

LT Lines: 

1.      Feeder combing should be carried out on regular interval and un-authorized service connections should be removed or regularized.

2. Trees fouling with the lines should be trimmed out and garbage like kites etc. should be removed regularly.
3. Proper conductor spacers should be provided in LT feeders and the same should be repaired / replaced if defective.
4. Minimum distance between two LT feeders should be 100 meters.
5. All the service connection in one premise must be from one LT feeder only.
6. Preferably use ABC for LT feeder in theft prone area.  
7. Earth resistance of the poles should be checked on regular basis.
8. Routine checks on healthiness of stay wires.
9. Some LT feeders are running in parallel with overhead HT feeders as composite main. These LT feeders should be removed under HVDS scheme with mounting of small transformers & metering cubicle on HT poles. Consumer meters should be installed in the metering cubicle & service connection should be provided directly from HT pole through metering cubicle.

Extra cost required for installation of small transformers on HT poles can be compensated by recovered LT conductors and associated DTs.

Service Connection:

1.      Periodic inspection of service connection should be carried out.

2.      Load carrying capacity of the service connection should be double than the contract load.

3.      Service connection should be properly supported with GI wire to avoid any break down due to storm etc.

4.      Service connection should be joint less and distinctly visible from pole to consumer meter to avoid the chances of any theft.

5.      Service connection cable should be provided by the utility so that the quality and uniformity can be maintained. If required the utility can load the cost of service connection to consumer.

6.      Meter reader / linemen should be made responsible for maintaining the healthiness of service connection.

New connection:

1.      No middleman should be allowed for new connection.

2.      Transparent guideline should be formed for required documents on application of new connection.

3.      Consumer should have liberty to apply for new connection through Internet, through telephone or through physical application at different location. Consumer should get registration no. and date of registration immediately on application.

4.      Designated executive should approach the consumer for required documents.

5.      No new connection should be released before allotment of Consumer Indexing Number.

6.      Designated executive should be held responsible for allotment of consumer indexing number and release of new connection within 07 working days after application.

Substation Logging & Records:

Following data should be regularly recorded and properly registered:

1. Hourly readings of all feeder & incomer currents, bus voltages, etc.
2. Monthly energy accounting/auditing through MRI.
3. Feeder tripping status / power reliability.
4. Fault tripping register: To record feeder wise number of tripping, duration of tripping, relay indications, duration of outage, fault identification etc.
5. Test result register: To record test results of all the equipments, e.g. Switchgears, Transformers, Transformer oil, WTI, OTI, relays, energy meters, CBs etc. (including the tests carried out by testing group)
6. Shift register: Chronological record of shift events and shift handing/taking over.
7. Maintenance register: To keep record of all the maintenance activities      
8. Defect Register: To record all sorts of defects observed by the operating staff, etc.
9. Computerised Data logging along with AMR shall be better option for substation logging & Records.

General Requirements:

1. A single line diagram of the substation should be displayed in the switchgear. Feeder wise DT details should also be mentioned in SLD.
2. Do’s & Don’ts regarding substation equipments.
3. Fire extinguisher at proper place in switchgear. Periodical checking and refilling.
4. Fire escape door should be available in switchgear.
5. Fire buckets (sand filled) should be available near Power transformer.
6. Electrical Shock Treatment Chart should be available in switchgear.
7. 33 KV yard should be free from grass & weeds.
8. Healthy house keeping should be maintained in sub-stations.
9. All cable trenches in control room/switchgear room should be covered with concrete slabs or chucker plates.

 

Mobile Service Van:

Mobile Van should be equipped to attend following problems:

Technical:

1. Fuse of call.
2. Low voltage, high voltage, fluctuating voltage, floating neutral etc.
3. Poor earthing / No earthing.
4. Distribution box fuse failure / burnt component.
5. Pole shock
6. Service connection wire broken, wire damaged, wire loose etc.
7. Streetlight not glowing.
8. DT related problems.
9. Short circuit / burning complaint.
10. LT & 11 KV line related problem.

Commercial:

1. Defective meter, meter jumping, defective sealing etc.
2. Shifting of meter.
3. Checking of meter on complaint.
4. Wrong bill, non-delivery of bill, NA/NR/IDF/RDF bill.
5. Long pending dues settlement.
6. Realisation of bill and issue of money receipt.
7. Customer Queries.

Service connection related:

1. Application for New connection.
2. Extension / reduction of load.
3. Change / Transfer of name.
4. Change of category.
5. Dismantling of service connection.
6. Disconnection / re-connection.

The Mobile Van should have following minimum equipments / items:

To Attend Technical Problems:

1. Earth discharge rod of 11 KV withstanding voltage. (02 Nos.)
2. Hand gloves of 11 KV withstanding voltage. (02 sets)
3. Safety belts. (02 sets)
4. Collapsible type aluminium ladder. (01 No.)
5. Hand / battery operated Megger: 0.5 KV (02 Nos.)
6. Hand / battery operated Megger: 1 KV & 2.5 KV  (01 each)
7. Multimeter. (02 Nos.)
8. Search light
9. Torch cell (as per local requirement)
10. Tool kit / toolbox. (02 set)
11. LT and 11 KV insulators.
12. LT power cable / LT wires for service connection replacements.
13. DT bushings (HT & LT both)
14. Conductors of each type for repair of LT & 11 KV over head conductors.
15. Transformer oil for top up in DTs.
16. HRC fuse of each type.
17. Earth wire and wire fuses of each type.
18. Come along clamps / PG clamps for stringing work.
19. Any other item as per local requirement of utility.

To attend commercial problem and customer queries:

1.      One PC / Laptop having wire less connectivity with billing data server and GIS based customer data server.

2.      One printer for printing of duplicate bills on standard format / stationary.

3.      One printer cum scanner for generating customer related queries.

4.      One UPS to avoid data loss on power failure.

5.      One mobile phone for voice communication if required.

6.      Different type of consumer meters.

7.      Aqua check meter for checking consumer meters.

8.      Meter sealing system.

9.      Sealing certificates.

PC / Laptop along with wireless connectivity with central server should be able to perform following duties:

1. PC should be capable of interfacing with MRI for uploading meter reading & should provide data validation checks to minimize data entry error.
2. Able to generate duplicate bill on demand and should have the provision for accepting the payment. Necessary money receipt with unique identification number can be issued against payment. All the bill generation and payment realization should be associated with the login-id of the personal and mobile van code.
3. Should be able to generate daily reconciliation statement on bill realization.
4. Should also allow different mode of payment like cash, cheque, draft, credit card, debit card etc.

7. Should be able to generate and issue different application forms for new connection, Extension / reduction of load, Change / Transfer of name, Change of category, re-connection.
8. Should be able to accept forms along with registration money and issue unique registration number for future follow up. System should check before accepting a form that all mandatory details as mentioned in the forms is filled.
9. Should be able to generate daily reconciliation statement on collection of registration money.
10. Should be able to ledgerise the sealing certificate in case of new meter or meter replacement.
11. In case of termination of connection requested by customer, the system should be able to accept the terminating meter reading for generating the last bill.
12. Should be able to generate customer related queries like different mode of payments, different promotional schemes, tariff rates, process of new connection, Extension / reduction of load, Change / Transfer of name, Change of category, re-connection etc.

Other Requirement:

1. Mobile van should have closed encasing with proper ventilation and one or two security guard to protect the collected cash.
2. Two linemen, one cashier cum computer operator, two-meter reader along with officer in-charge should always be available with Mobile Van.
3. First Aid box along with first aid instruction manual should be available with the Mobile Van.

 

Load growth & future planning:

1. Data should be collected for load growth of last five years and future planning should be done for capacity expansion.
2. Full fledge planning and engineering department should be established in the organization to study the load growth and plan for future expansion.

Adoption of change in technology and IT intervention:

Implementation of business process re-engineering and adoption of integrated IT approach. All the activities of the distribution business should be interlinked through IT interface.

Capacity Building and Technical Up-gradation of employees:

   Human resource of the corporation should be developed & enriched through regular training, seminars, workshops etc.

 

ANNEXURE-A

Base Data of Sub-station

Name of Sub-station:

33 KV System

Length of 33 KV feeder:

Source of 33 KV feeder:

33 KV Breakers

Name of Breaker	Capacity	Make	Year of manufacture	Sl. No.
Breaker No.1
Breaker No.2

Power Transformer

Name of Transformer	Capacity/ voltage ratio	Make	Year of manufacture	Sl. No.
Transformer No.1
Transformer No.2

11 KV Breakers

Name of Breaker	Capacity	Make	Year of manufacture	Sl. No.
Incomer – 1
Feeder No.-1
Feeder No.-2
Incomer - 2
Feeder No.-3
Feeder No.-4
Feeder No.-5

11 KV Feeders

Name of Feeder	Length in Km	Current Capacity	No. of DTs with capacity	No. of LT lines	No. of Consumers

 

Monthly monitoring parameter of Sub-station

Status of 33 KV Breakers:

33 KV breaker	Breaker No.-1	Breaker No.2
Closing status
Tripping status
Protection status
Max. current
No. of Tripping
Total trip Duration

Status of Power Transformer:

Power Transformer	Transformer No.-1	Transformer No.2
Oil level
Oil Leakage
Oil condition
Silica gel condition
Alarm Status
Earthing Status

Status of 11 KV Breakers:

11 KV breaker	Name of 11 KV Circuit Breaker
	Incomer-1	Feeder-1	Feeder-2	Incomer-2	Feeder-3	Feeder-4	Feeder-5
Closing status
Tripping status
Protection status
Maximum current
No. of Tripping
Total trip Duration

Techno commercial Status of 11 KV feeder:

11 KV breaker	Sub - Station	Name of 11 KV Feeder
		Feeder-1	Feeder-2	Feeder-3	Feeder-4	Feeder-5
Input Energy
Billed Energy
Metered Energy
Billed Amount
Revenue Realised
No of DT Failure

 

Monthly monitoring parameter for Distribution Transformer of Each 11 KV feeder

Name of 11 KV feeder:

Name/Rating of Distribution Transformer	Date	Oil Level	Cable box Status	Earthing Status	R-Phase Current	Y-Phase Current	B-Phase Current

 

                                                                                                            ANNEXURE-B

Daily Check List of Power Transformer
Name :		Location :
Capacity:
							Remarks
1	Oil Leakage	O.K.			Not O.K.
2	Oil Level	Normal			Low
3	HT & LT Connection	O.K.			Loose
4	Status of LUG	O.K.			Not O.K.
5	Winding Temperature	<90' C			>90' C
6	Oil Temperature	<80' C			>80' C
7	Status of Buchholz relay	O.K.			Not O.K.
8	Status of circuit breaker	Healthy			Unhealthy
9	Status of Earthing	Healthy			Unhealthy
10	Status of LA	Healthy			Unhealthy
11	Alarm Status	O.K.			Not O.K.
		R-Phase	Y-Phase		B-Phase
12	Transformer LV current
13	Transformer LV voltage

Check List of Distribution Transformer
Name :		Capacity:			Sub-Division:
							Remarks
1	Oil Leakage	O.K.			Not O.K.
2	Oil Level	Normal			Low
3	HT & LT Connection	O.K.			Loose
4	Cable Box Status	O.K.			Not O.K.
a	Position of fuse base	O.K.			Not O.K.
b	Status of LUG	O.K.			Not O.K.
c	Status of Fuse wire	O.K.			Not O.K.
d	Condition of Box	Healthy			Unhealthy
5	Status of Earthing	Healthy			Unhealthy
6	Status of MCCB	Healthy			Unhealthy
7	Status of Capacitor	Healthy			Unhealthy
8	Status of LA	Healthy			Unhealthy
9	Status of TPMO & fuse set	Healthy			Unhealthy
		R-Phase	Y-Phase		B-Phase
10	Transformer LV current
11	Transformer LV voltage
12	Power Flow ( Calculated )