 Deployed 80 nos. of Single Phase meters, 1 no. of DCU and 1 no. of GPRS router towards Smart Metering.  Sponsored one 12.5 kVA “StreetSmart” street light automation panel for the Smart Grid Pilot Project.  Transformer Monitoring Operation and Control

 Smart Meters meet the needs of residential market  Provides AMR/AMI solutions to the distribution companies on a modular platform.  Meter can be used in the place where only energy monitoring functions is required.  It can be used in the place where TOU and/or load profile functionality is required in the de-regulated electric market.  The meter has two profile recorders.  Hourly Incremental value  Daily absolute value.  Storage of values up to 3 months.  Incorporates two internal breaking relays to carry out breaking and reconnection of supply.

 Low Voltage Supervision Module which is capable of monitoring the load of the transformer.  The DCU is capable of talking to individual meters with the help of existing low voltage circuit on PRIME communication system within the CENELEC A band.  It has an internal database for storing the meter data and profile details.

 These single phase meters use DLMS/COSEM as communication protocol for connecting to DCU on application level.  Low Voltage PLC is the communication media being used between individual meters and DCU.  These meters are capable of sending data using the same existing low voltage power line which comes to our house. It uses PRIME as a PLC communication system which is specifically designed to be employed in Smart Metering application.  This PRIME is based on an OFDM modulation within CENELEC A band from 9 to 95 kHz. OFDM is a very robust modulation system against the impulsive noise and frequency selective noise in the Low Voltage line.  This PRIME supports 6 different modulation schemes to adapt to the media and allows us to achieve transmission speed between 21 and 128 kbps between their Physical layer.

 The DCU, being a PRIME Base Node manages the network topology and automatically adapts to the changes in the network. The meters, being a Service Node incorporate the functionality of Service Nodes.  These meters can automatically behave as repeaters for other nodes that are not able to communicate with DCU or Base Node. So, these repeater nodes will help other meters in getting registered with DCU by way of promotion.  Thus, it can form a mesh network and any meter which is introduced in the network will be detected automatically irrespective of the make of the meter as long as the new meter supports PRIME protocol.

 The DCU cabinet installed in the DAT-II transformer has a GPRS router in which SIM card is inserted and GPRS connection is made available for viewing the data through internet. The SIM has a dynamic IP address and is mapped to DNS name with the help of DYNDNS service provider.  With the help of DNS name, the HES will be able to communicate with DCU. The communication between DCU and HES is going to be on SOAP based web services. HES will read the data from DCU on XML and then interpret and present the data in a report format. Thus, the entire set of meters parameters, profile data, event messages can be monitored using the link

 " This project has proven Smart Metering technologies to be deployable and helpful in a 100% Indian scenario. PLC communications have been successful to enable on demand power consumption data. Now it's time to move on to explore other communication technologies. RF based Zigbee AMI pilots are planned. Thus we will be able to see how RF technologies can work as a complementary technology for PLC communications in different Indian scenarios. Combining both technologies will for sure help to extend power consumption auditability all over India.

11 System Architecture Future Plans

12 Control’s Street Light Operation by, Astronomical Timer based ON-OFF ON and Off as per Sun Set and Sun Rise Time, calculates every day Ambient Light intensity based On-Off Useful on high ways during over cast situations From Web Site All lights can be turned ON or OFF with a mouse click Programmable Warm Time Duration and Voltage Warm time voltage can be programmed to improve effective life of HID Lamps, up to 10% boost over input line voltage SLA Solution Features:

13 Maintenance of Street Lights made easy with, Central Monitoring through website from any where Monitor Instantaneous Status Parameters; V, I, kWh etc Logs periodic data, retains for one year, can be accessed through web site and exported to Excel sheet See the status on Google Map at a glance and find out whom to contact during fault Instant SMS alerts during faults Monitor’s 67 types of faults and generates SMS alerts with exact fault details, two mobile numbers can be programmed SLA Solution Features:

14 Saves electricity by, Regulating voltage fed to the street lights Motorized autotransformers controls output voltage with 1% accuracy Saves % electricity by regulating at fixed voltage level SLA Solution Features:

15 Offers Dimming and load control schemes Lamp ON time is split into three programmable time zones Time duration and voltage level is programmable With Nominal dimming level can achieve up to 30% saving SLA Solution Features:

16 Effective and Efficient Operation Programmable Lamp Cycle: Duration and Voltage Level Warm -> Nominal -> Zone 1-> Zone 2 -> Zone 3 Protection from Input Over Voltage or Output over load Generates SMS Alerts on Lamp failures Improves life of lamps Simple Web site administration, role based login rights Set Reminders for web accounts for periodic maintenance activities like lamp cleaning, pole painting etc Generate various MIS Reports SLA Solution Features:

Electricity Consumption before StreetSmart Implementation

Energy Consumption after StreetSmart Implementation

20 Global Transformer Monitoring Operation & Control G-TMOC

Why Transformer Monitoring ? Transformer monitoring is the answer to the need of feeling the pulse of your transformer.  Helps to decide whether the transformer is still “fit enough” to withstand a temporary overload?  Enables Loading of transformer for maximum economic efficiency  Possible to detect first sign of failure condition  Helps to manage and extend transformer life  Reduces unscheduled outages and equipment failures  Complement information for on-time and cost effective maintenance.  Saving on personnel, unmanned substations  Preventing an outage of a transformer.  Less redundancy in the network

22 Integration Capabilities SCADA Transformer- At Site Computer G-TMOC 22 PRIVATE PRTOECT ED LAN ETHERNET INTERFACE DNP 3.0 PROTOCOL ETHERNET INTERFACE-IEC PROTOCOL WEB- SERVER COPPER WIRES FIBER OPTIC ST INTERFACE IEC PROTOCOL Control-Room- Touch Screen RS-485/ MODBUS USB 2.0