BSES Yamuna Power Limited

BSES Yamuna Power Limited (BYPL) a leading

power distribution company in Delhi caters to a

geographical area of around 200 sq kms. The

company supplies electricity to over 12 lakh

customers covering a population base of nearly 48

lakhs in Central and East Delhi. The company's

unparalleled achievements in the electricity

distribution sector in Delhi stands out as the most

“successful” experiment and replicable model” of

Public-Private-Partnership (PPP) - anywhere in the

country.

BSES Yamuna Power Limited - AT & C Loss Reduction

Openinglevel

(July 2002)

0

10

20

30

40

50

60

70

63.1661.88

54.29

50.12

43.6

39.03

29.8

24.44 23.11

19.8917.83

Perc

enta

ge(%

)

FY03 FY04 FY05 FY06 FY07 FY08 FY09 FY10 FY11 FY12

Years

Record

Reduction

of 45.3%

Our Network:

S.No. ITEMS NETWORK NETWORK %

2012-13 2002-03 INCREASE

1 No. of Grids 50 40 25

2 No. of Power Transformers 137 98 40

3 EHV Capacity (MVA) 2884 1863 55

4 EHV Cable Length/ Line

Length Laid (Km) 745 363 105

5 No. of 66 & 33 KV Feeders 144 89 62

6 Shunt Capacitors (MVAr) 932 573 63

7 No. of Distribution Transformer 3271 2657 23

8 Distribution Transformers

Capacity (MVA) 2327 1704 37

9 No. of 11 KV Feeders 723 476 52

10 11 KV Cables laid (Kms) 1770 1303 36

11 11 KV Lines laid (Kms) 249 145 72

12 Total No. of LT Feeders 13280 10193 30

13 LT Lines laid (Kms) 5558 4589 21 DEC

2012

Produced by BSES Yamuna Power Limited

Corporate Communications Department

Shakti Kiran Building, Karkardooma

Delhi - 110 032

Supreme Court of India "We are

satisfied that the power situation

in the city(Delhi) has improved

tremendously" - Nov, 2012

For more information

please contact Mr. Deepanshu Agarwal

Email ID: byplbd@relianceada.com

Contact no: 011 39992030

M D S

Modular IntegratedDistribution Automation System

131 BYPL Package Substation

1257 BYPL Indoor Substation

893 BYPL Outdoor Substation

83.1%Growth

BYPL Peak Demand Met (MW)

0

500

1000

1500

2002

798

2010 2011 20122009

10571131

11951461

Indian 11KV

Smart Grid Solution

Indian 11KV

Smart Grid Solution

Indian 11KV

Smart Grid Solution

Indian 11KV

Smart Grid SolutionBSES’ DISTRIBUTIONSUB-STATIONS:Lowers energy to 200/400volts for distribution

Residential coloniesOffice blocksHugh-rise apartments

Underground cables &transmission lines

Transformers

DISCOM: BSES Sub-Sationsfurther reduce voltage fordistributing power within the city

TRANSCO: Sub-Stationssteps down voltage forsupplying to Discoms

POWER SOURCEhe city is fed by

five plants in Delhi,the rest of the demand is met fromthe Northern Gridand other states

T

BIG USERS: Largeindustrial housesusually have their ownSub-Stations

This is how your house gets power...

save time, save fuel, save moneylog on to www.bsesdelhi.com

Just dial 399-99-808 and press...

8 9

0 #

321

64 5

7

1PowerSupply

4Door Step

service

2SoS Fire/Shock

3Bill or Meter

7Duplicate

Bills

6Report Power theft/

Corruption

5Key /Government

Consumer Cell

A ISO 14001, ISO 9001, OHSAS 18001, ISO 27001, ISO 17025 Recognized Power Utility Company

BSES Yamuna Power Limited has set a national

record in AT&C loss reduction of 45.3% - more than

4.5% loss reduction per year against the National

Average of 0.5%.

Amongst BYPL operational highlights are the

following facts:

• Only discom in Delhi to have a 100%

electrified area.

• Successfully met the maximum power

demand in Summer 2012 of 1461MW - close

to 50% increase over the maximum power

demand of 798MW in 2002-03.

• Consistently operates its distribution network

with a class leading reliability of 99.84%

(March 2011) as per CEA norms.

• In the last ten years, customer base increased

from 7 lakh customers in 2002 to 12.5lakh

customers in 2012.

SN Particular Unit BYPL

(East &

Central)

1 Area sq. km 200

2 Customer Cons / 6139

Density (As of Mar’12) sq km

3 Total Registered Customer Million 1.23

(As of Mar’12)

4 Peak Demand (Delhi peak MW 1461

demand 5642 MW)

• Deploys Supervisory Control and Data

Acquisition (SCADA), Geographic Information

System (GIS), Automated Meter Reading

(AMR) technologies for faster identification -

isolation and restoration of faults.

IntroductionBSES Yamuna Power Limited(BYPL), like power

companies all over the world is actively looking at

solutions to future proof the distribution network

and make them ready for integration with smart

grid transmission networks.

As the only discom to have a 100% electrified

area, we understand the importance of optimizing

power distribution network. Strengthening and

monitoring 11KV networks, we realize is the key to

reduction of AT&C losses and ensuring power for

all.

Technology aids BYPL in managing material and

manpower to monitor its network. BYPL now offers

its expertise in the form of Modular Integrated

Distribution Automation System (MIDAS) - the

value-for-money solution in automation of

11KV/415V distribution network.

MIDAS is the result of our in-house pool of

Engineers work to find solutions for predictive

maintenance of networks, which allows for

substantial reduction in maintenance costs while

increasing reliability and quality of power supply.

MIDAS allows for remote monitoring of the health

of 11 KV network equipments, quick location of

faults and even predicts faults prior to their

occurrence. MIDAS is capable of sending auto

alerts via sms. It is a cost effective, easy to use and

implement solution to efficiently manage 11KV

distribution grids with minimum service

disruptions.

2. Distribution Transformer Unit (DT): Conveys

input received from LT Palm Temperature Sensor

(connected to R,Y,B line of DT, Oil Temperature

sensor, Oil Level Sensor, Door

Sensor) and sends it to the

F R T U u s i n g R S - 4 8 5

communication.

3. RMU (Ring Main Unit): Monitors input from

Isolator, Breaker, FPI, CBCT (neutral current),

SF6 Gas pressure of RMU and sends it to the

FRTU using RS-485 communication

4. Fault Passage Indicator (FPI):

Provides visual or remote

indication of a fault on the

electric power system.

6. Communication medium: Modem, General

Packet Radio Service (GPRS)

7. Front end web base application: Provides real

time status of different substations and their

corresponding parameters (sensors and meter

data).

FRTU Specifications

To cater to ever increasing power demand, power

distribution companies need to look at capacity

augmentation and optimisation of their power

distribution networks to eliminate bottlenecks.

MIDAS has been specifically designed and

developed to work at the 11KV/415V distribution

substation level. So far similar SMART

applications have been implemented only at

66KV grid level.

On an average, rectifying distribution transformer

downtime takes upto 24 hours. However,

substations with predictive fault, conditioning

monitoring system “MIDAS” in place, will be able to

reduce their down time by approximately 85-90%

Need

Components

Sensors

Door Sensor

Oil level

Temperature

Oil level Sensor

LT Palm Temperature Sensor

1. Field Remote Terminal unit (FRTU):

Indigenously developed by BYPL takes input

from DT and RMU unit (sensors data), meter

instantaneous parameters, fire sensor and

sends it to a central server on periodic basis.

5. Core Balanced Current Transformer (CBCT):

Ring type determines imbalances of

transformer.

• Power

Requirement:

Unregulated

220V+10% AC

• Case: IP54/IP55

enclosure

protection for

Indoor

Substation

• IP 66/67 enclosure protection for Out Door

Substation.

• FRTU: Embedded hardware with 32-bit

microcontroller

• FRTU has internal EPROM (Erasable

Programmable Read Only Memory)

• Communicates with server on GPRS

• RS-232/485 Interface

• Flash memory of size 4 MB

Functionalities• Remotely monitor

• Condition of various assets such as

transformer, switchgear etc

• Energy meter data (which is sent every 15 min)

• Fault detection in the network

• Intrusion detection

• Fire detection

• Integration with SAP, GIS, OMS

S

MO

SI

G

SAP

EN

ERG

Y AUDIT

MIDAS

OMS (Outage Management Solution)

GIS (Geographic Information System)

Benefits

Features• Inbuilt SMPS (Switched-Mode Power Supply)

• Cost Effective

• 8 AI Ports

• 14 DI Ports

• 8 DO Ports

• Provision to integrate with smart meters

• Low power consumption

• Designed to work in harsh environment

Predicting fault and Condition Monitoring: With

the advantage of fault prediction discoms can

take corrective actions in time which will

translate to:

• Reduced physical theft

• Protection against fire

• Lower effort

• Reduced maintenance cost

• Reduced downtime of equipment

• Extension of equipment service life

• Improved support for operations, maintenance

and protection engineers and

• Provide sustainable investments to future-

proof 11KV network

For the customer, implementation of MIDAS by a

discom translates to higher reliability and

availability of power.

MIDAS Application

Home Page for authorisation andauthentication of registered users

Condition Monitoring Alarms andEvents Page for Transformers & Substations

MIDAS Application Features

qRegular Monitoring Of

• Load imbalance

• Power factor

• Overload conditions

• Load profile

• Oil level

• Oil temperature

• LT palm temperature

• Intrusion problem

q Event Notification via sms and email with

escalation

Switch Gear condition monitoring,Fault detection giving FPI status

LT Meter data to check condition monitoring,over loading / imbalance to reduce Technical Losses

SENSORS

FRTU

INTERNET

ClientAccess

Terminals

RS232

RS485Port

GPRSService

RMU

RMU Concentrator

DistributionTransformer

Meter

DT Concentrator

FRTU (Field Remote Terminal unit) DT (Distribution Transformer) RMU (Ring Main Unit)

FPI (Fault Passage Indicator)GPRS (General Packet Radio Service)

MIDAS Block Diagram

Smart Substation Monitoring System

DG SetAPFC

• FPI

• Fire Alarm

• Door Sensor

• Movement

sensor

• SF6 Pressure

• Oil

Temperature

• Oil Level

• Terminal

• Temperature