SS & Feeder Management

8/4/2019 SS & Feeder Management

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Substation & Feeder Management for

Optimizing Revenue Substation is the Control Centre of O & M

of a Distribution System

It is like the Brain of the Central Nervous System


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Optimizing RevenueFunctions of Distribution Substations-

Substations are designed to accomplish the following functions, although notall substations have all these functions:

Change voltage from one level to another

Regulate voltage to compensate for system voltage changes

Switch transmission and distribution circuits into and out of the grid system

Measure electric power qualities flowing in the circuits

Connect communication signals to the circuits

Eliminate lightning and other electrical surges from the system

Connect electric generation plants to the system

Make interconnections between the electric systems of more than one utility

Control reactive kilovolt-amperes supplied to and the flow of reactivekilovolt-amperes in the circuits


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Optimizing Revenue

In a Distribution Network, Substations are

of 2 Types-

Power (Trf) Substations

Distribution (Trf) Substations


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Substation & Feeder Management forOptimizing Revenue Power Transformers-

Generally 33/11 KV

Capacity (MVA)- 1.6, 3.15, 5, 8

Location- Ideally, Power transformers should belocated at places with the following factors intoconsideration-Line Loss in 33 KV Feeders is Minimum

Line Loss in 11 KV Feeders is Minimum

Power Supply Quality (Voltage) is maintained


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Optimizing Revenue Distribution Transformers-

Generally 33/11 KV

Capacity (KVA)-

Single Phase- 10,16

Three Phase- 25,63,100,250,315,500

Location- Ideally, DTRs should be located at places with thefollowing factors into consideration-

Line Loss in 11 KV Feeders is Minimum

Line Loss in LT Line is Minimum

Power Supply Quality (Voltage) is maintained


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Revenues can be optimized by way of proper

Feeder and Substation Management

In case of high loss making feeders the priority

may be given in load shedding while handlingpower shortage

Reorientation of feeders, substations and

upgradation can further help improving

revenues Installation of proper capacity of capacitors

In ABT(Availability Base Tariff) regime, by

managing feeder/ substation load, revenue

can be im roved

Optimisation of revenue- through feederand substation management


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Optimisation of Revenue- reduction nof reading

inaccuracies-AMR APPLICATION SERVER

AMR Metering Management Server

Central Metering DatabaseManagement Application

Billing Software Integration Module

Metering Network Configuration

Module


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PUBLIC NETWORK OPTIONS FOR

UTILITIES

GSM/GPRS/CDMA/Radio Solutions for UtilityApplications

Providing GSM/GPRS/CDMA/Radio basedcommunication solutions to the utility industry endusers and OEM's to benefit from this technology intheir electrical networks, SCADA systems and formetering.


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DATA EXPLOITATION

Energy Management Software which canread meters in a sub-station and provide

various reports

Energy Monitoring Suite which provides,

reporting, trending, trading, analysis, etc.

Energy Trading and Enterprise Optimization

Software Solutions

Integration Capabilities to work tools likeCyme etc., for network modlling, voltage

studies, etc.,

Customized Solutions based on customers

specification


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WORK PLAN

ENERGY MANAGEMENT

MEANS LOWERING COST BY

ELIMINATING UNNECESSARY ENERGY USE

IMPROVING THEEFFICIENCY OF NEEDED ENERGY USE

BUYINGENERGY AT LOWERNET PRICES

ADJUSTING OPERATIONS TO ALLOW PURCHASINGENERGYAT LOWERPRICES


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Substation & Feeder Management forOptimizing Revenue Feeders in a Distribution System

33 KV

11 KVLT Line


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Optimizing Revenue 33 KV Feeders in a Distribution System

This is the level of Voltage at which Discoms buy Power fromGRIDCO

Mixed Load

33 KV Feeders Dedicated FeederIndustrial Feeder

For Carrying out Energy Accounting & Audit, Metering of 33 KV Feedersat the Grid Substation, at incoming side of 33/11 KV Substations andall 33 KV Consumers is a must.


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Optimizing Revenue 11 KV Feeders in a Distribution System

11 KV Feeders emanate from 33/11 KV Power Substations

Mixed Load

11 KV Feeders Dedicated Feeder

Industrial Feeder

For Carrying out Energy Accounting & Audit, Metering of 11 KV Feedersat the source of 11 KV Feeders at 33/11 KV Substation and at all theDTRs and 11 KV Consumers is a must.


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Optimizing Revenue LT Lines in a Distribution System

LT Lines emanate from 11/0.4 KV Distribution

Substations

For Carrying out Energy Accounting & Audit of LT

Lines, Metering at the source of LT Line and

Consumers is a must.


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Optimizing RevenueSTEP-I

For Optimum Revenue Realization we need to know the Substations(Power & Distribution) & Feeders (33 KV, 11 KV, LT Lines) where theAT&C Losses are high.

STEP-II

The AT&C Losses should be bifurcated into Technical Losses andCommercial Losses.


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Optimizing Revenue

STEP-II

For Improving Technical Losses-Focus on Improvement in Billing

By Reduction of Theft in HT Consumers

Strengthening MRT, Conducting Raids, Repeated Checking, Strict actionagainst Dishonest Consumers.

By Reduction of Theft in LT Consumers

By Strengthening Vigilance Wing, Conducting raids, Load Surveys, Strict actionagainst Dishonest Consumers

By Monitoring of Spot Billing activities

Focus on Improvement in T&D LossesBy Reduction of Line Losses in 33 KV &11 KV Feeders and LT Lines

Reduction of Transformer Losses in 33/11 KV Trfs and in DTRs.


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Substation & Feeder Management forOptimizing RevenueSTEP-II

For Improving Commercial Losses-Focus on Improvement in Revenue RealisationBy Opening up Multiple Payment Options

Provision for Payment of Bills through Internet, ATM Counters,Franchisee Counters, Customer Care Counters, etc.

By Proactively sorting out Billing & Collection related grievances ofConsumers.

Bill Revisions

Arrear Collection


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Optimizing Revenue

Information in terms of Details of

Consumers & Load Flows

Need to be tagged to LT Lines, DTRs, 11 KV Lines, 33/11 KVSubstations, 33 KV Lines and Input Points.


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Optimizing RevenueIT Systems are available for Real-Time Visibility and Operation of Substations.

Such Systems can be Tailored to adapt to Distribution System Network for Trackingof Exceptional Events like Failures of Lines & Equipments & Overloads.

With Increased Visibility of System Network and Remote Operation facilities, wecan design the system such that in High Revenue fetching areas the power supplyquality is the best.

Decision with regard to operation of lines can be Programmed in a preset PriorityBasis such that the Power Supply can be restored in minimum possible time for

areas which have Low Losses and High Revenue Potential.


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Substation & Feeder Management forOptimizing Revenue

With Implementation of The Distribution Automation Systems theConsumer Satisfaction will increase which in turn shall result in

Increased Revenue Realisation


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WAY FORWARD

Commitment of top leadership

Organisational Restructuring Clear

responsibilities and accountability

Feeder Managers

Improvement in Infrastructure especially inCESU

Cultural issues to be addressed

Development of a IT system - database and its

upkeep Capacity Development

Development of procedure and training manuals

Training of personnel


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SUSTAINABILITY

Linking the Energy

Audit Module with Billing

Databases for

continuous monitoring

Maintaining the data

quality

Prepare an

operational model

Consistency of

systems for access

and extract data

from any sources


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Thank You

Date post:	07-Apr-2018
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SS & Feeder Management

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