1

CESC’s Experiences in

SMART GRID

Implementation

Smart Grid is an electrical grid with

Automation

Communication

IT systems

For

To

✓

✓

✓

Optimise & Fully utilise the Electrical Network

Precipitate Maximum value to the consumers

Full Visibility & Continuous Monitoring of every nodes of the Network

Monitor ControlMeasure

Traditional Grids Smarter Grids

Thermal

NuclearHydro

UTILITIES

Solar

Wind

HydroStorage

Nuclear

Thermal

HOW THE JOURNEY STARTED…

A Robust Network…… the backbone of any Smart Grid

Supervisory Control And Data Acquisition

system

HOW THE JOURNEY STARTED…

▪ Started Laying since 1992

▪ >1400 km of Optical Fibre Lines

▪ In-house Point to Point SCADA

▪ First in India by any DISCOM

▪ 1st GIS in India (1994)

▪ Solving the Space problem

1st Gas Insulated Switch gear in India (1994)

Reducing Space requirement

Greater Network Redundancy & Reliability

Faster Isolation & Restoration

Solving the Space problem

Utilizing the same space for Capacity Augmentation

Multi-Tier Substations

Solving the Space problem

Pre-fabricated Stations Pre-Engineered Buildings

Utilizing the same space for Capacity Augmentation

100 MVA POWER TRANSFORMER WITH UNIT

COOLER 75 MVA 4-WINDING TRANSFORMER

Lesser Carbon Footprint

More Compact Design

Better Network Flexibility

Easier Future Augmentation

Solving the Space problem

Utilizing the same space for Capacity Augmentation

CO2

First & only EHV Underground Substation in INDIA

Solving the Space problem

Utilizing the same space for Capacity Augmentation

132/33 KV PARK CIRCUS UNDERGROUND SUBSTATION NEAR QUEST MALL

USE OF ‘MODERN PLANT & EQUIPMENT’

Innovation- deploying state of the art technology in T&D

network to add value to consumers

ADVANCED 33 KV GIS (WITH IN-BUILT PROTECTION) Numerical Relay

ESTER OIL-FILLED TRANSFORMER

Better Protection

Improved Control

Enhanced Safety

ASSET HEALTH MONITORING

Proactive Non-Intrusive Averts Breakdown

Transformers Substations Ring Main Units Cables

Thermographic Imaging Monitoring Partial Discharge Visual Inspection

ASSET HEALTH MONITORING

From being Preventive to becoming Predictive…

ASSET HEALTH MONITORING

❖ Temp, Humidity & H2 monitoring of Power Transformers

❖ Detecting Hotspots & PDs

❖Monitoring of transmission line & tower

❖ Thermal imaging of S/S

H2

Drone Based Monitoring IoT Sensor Based online surveillance

220kV, 132 kV Ring network

along with 33kV cluster ring.Self Healing Network

❖ Important HT & LT Consumers like Hospitals❖ Automated restoration of supply within seconds

❖ Improved Redundancy❖ Faster Restoration

RTU M M M

Incoming Feeder

Outgoing Feeder

DTR

Control Room

3 -Way Motorised RMU

RMU Automation Automation at LT Level

Lesser Truck Rolls

Faster Restoration

Easier System Operations

Internet of Things (IoT)

❖ LT Pillar Box Monitoring

❖ LT Supply Monitoring for

sensitive consumers

❖ Transformer Temperature

Monitoring

❖ HT Feeder Self-healing

❖ HT Consumer End Point

Voltage & Current

Monitoring

❖ FPI Monitoring of RMU

Online Fault AnalyserProtection Dashboard

Faster Restoration

Remote Operation

Real TimeMonitoring

Phasor Measurement Units

Fault Analyzer

Augmented RealityMixed Reality

Visualization of relay data and fault waveform through

Microsoft HoloLens

Decision on the move.... Faster Network restoration

Relay & Fault waveform in

Mobile App & browser Push Notification Real time

Disturbance Record

Complaint management system

GPS enabled fleet for power restoration

Navigation to reach consumer location faster

SMS sent to

consumer with

expected restoratio

n time

Complete visibility at the Command Centre

Smart meter directly logs supply complaint

1

2

3

4

5Supply

restored

Smart Outage Management

Dynamic Dashboard

Read from anywhere – freedom on demand reading

AMI Project

• Kolkata: 18,000 (Approx.)

• Kota: 70,000 (Approx.)Meter Quantity

• Last Mile: RF Mesh (865-867 MHz), Cellular

• Backhaul: OFC/GPRS

Communication Technology

• Network: CAPEX

• HES & Other S/W : SaaSModel

Last Mile & Backhaul Communication

RMUAutomation

• RMU Automation over RF Mesh

Access Point (Comm. Device)

Power quality assessment : Network Assessment

Quicker & Accurate Billing

Eradicating Collusion with Meter Readers

Reducing Provisional Bills

Easier Grievance Redressal

Remote connection disconnection

Delaying Obsolescence : Remote Upgradation

Energy Budgeting by consumers

The Well Known Use Cases

REMOTE READING & CONSUMPTION VIEWING CAPABILITY

Daily Consumption view

15 min Consumption view

NET METERING

DISTRIBUTION LOSS MONITORING

From a Monthly Loss figure to 15-minute Loss Profile

22 %

13%

10 %

310

Indexed DT

12000+

Consumer

12Teams

4> 50 % Loss

16> 30 % Loss

250

< 25 % Loss

175

< 10 % Loss

5

10

15

20

25

30

35

40

40

50

60

70

80

90

100

110

120

130

140Bazar Area DTR

8%

Lights, Motors3 – 5 pm Commercial Consumers

Swastika Apartment DTR

Bazar Area DTR

Panihati Station Road DTR

Pilkhana DTR-2

Jodhpur Park DTR-1

5

10

15

20

25

30

35

40

0

20

40

60

80

100

120

140

160

Pilkhana DTR -2

1 – 4am Domestic Consumers

Air-condition LoadDisclaimer : Artist Impression. Actual systems may look different

POWER NETWORK HEALTH MONITORING

Better Asset Management

Averts Potential Breakdowns

Quicker Circuit Rectification

Better CAPEX planning

POWER NETWORK HEALTH MONITORING

Reactive >>> Preventive >>> Predictive

Business Intelligence & Analytics

BI Home Page Consumption Trend Analysis

DTR Management Copy Bill Analysis

DTR Load Repetitive UG Distributor Faults

Repetitive Pillar Box Fuse callsFuse Call Analysis before & after

installation of Modified Pillar

CESC’s O/F Network On GIS MapCall Monitoring System with Vehicle

Path Forward

LT Network: Consumer Indexing & Network Mapping

HT Network: Mapping of all assets including cable routes. Sketchbook to be replaced

Route Cards and sundry other reports shall be generated through the system

Asset Mapping: Mapping of all assets including Electrical & OF Cable Routes

Generation of a holistic integrated system by stitching together HT and LT maps

Direct application from field following integration with IT Applications

GIS Initiatives

24 X 7 Call

Center

CESC Mobile

App

LOGIN TO HAPPINESS

Multiple Channels for Supply & Billing

Complaint, for ease of Customer Reach

www.cesc.co.in

Facebook WhatsApp Mail

Chatbot(Equipped with

AI,ML,NLP)

Walk-

in

Voicebot

e-Buddy

Automated Workflow &

Technology enablement to ensure

faster Supply Restoration

IVR based automatic call

docketingAutomatic Supply

call allocation to

the nearest

Technician group :

Field force

automation

HT RMU automation &

LT Auto change-over

for essential consumers

like hospitals

FPI to identify

faulty section at a

glance

Self healing

changeover

for sensitive

consumers

A paradigm shift in customer service

Automatic Inspection

AllocationSystem driven Inspection allocation to ensure 1 day inspection

Logic Driven Inspection Logic driven Inspection Exclusion for

>30% applications, to ensure Offer roll

out within 24 hrs

Multiple Payment OptionsMultiple Payment channels for smooth

Service & Bill Payment (47% online bill

payment)

Supply Workflow

ManagementSystem driven workflow to

ensure Meter fixing (where

service exists; ~90% of cases) within 24 hours of payment

100 % Online Application100% Online New Application

procedure by process streamlining in

line with EODB.

STREAMLINED

NEW APPLICATION

PROCESSING FOR

FASTER SUPPLY

Field Force Automation & Digital Transformation of Meter Inspection Activity

Tablet Based Meter

Inspection

30%Logic driven Inspection

for >30% complaints

improves response time

Manpower

Optimization

No Delay

No Stacking

No Manual Calculation

Zero Paper

Real Time

Online with offline fallback

Single Point Information

• Remote Meter reading of all high-value

consumers

• Smart meter deployment over RF with

cellular

• Digitalization of meter life cycle

Smart Metering

An app based solution for

information mobility

Metering

On the Go

Metering on

the Go

Smart Grid Control Centre Electric Mobility Battery energy Storage System(BESS)

“State of the Art” SCADA

Encompasses all Voltage Levels

Integration of Grid Scale BESS

DER Integration & Peak Management

EV Charging Infrastructure

Green Initiatives

Further Interests

Internet of Things

Virtual Reality (VR)

AI + ML +Block Chain

Predictive Analytics

Real Time Settlement

Modelling of Substations

Digital Twins

IoT sensor Based Monitoring

DMS Integration

Further Interests

Distribution loss figure is

one of the best in the

country

Distribution Loss

Achievements

37

The current average

restoration time is among

the lowest in the country

Restoration Time

Lowest asset failure rate

among the utilities

Asset Failure Rate

And Still the

Journey continues…..