making the smartgrid real - crompton greaves · making the smartgrid real networking solutions for...

Making the Smartgrid real

Networking solutions for power utilities, railways and industrial applications


Description

2

Introduction

offers a complete range of solutions for the automation of electric power systems.

products are making smartgrids a reality. From meters, to data concentrators, to new protection and control units, fault detectors, sensors and communication equipment, can offer a complete package for smartgrid projects.

A key challenge to implement Intelligent Electrical Grids or smartgrids is the deployment of communications networks using multiple technologies, and combining a variety of systems with different capacities and security levels. Utilities must decide whether to invest in building their own communications networks, proprietary solution, or to subcontract third party communications services, non‑proprietary solution, such as GPRS/3G, satellite links, ADSL or cable.

New services and functions in the distribution grid, such as fault location, automatic meter reading, protection functions, SCADA services and others, require a reliable communication infrastructure to transport all their data.

Non‑proprietary communications present the concern that network availability is outside the control of the utility.

Proprietary networks, in some cases, include existing fiber links, but most of the facilities

require new links. One way of solving the problem is to select a communication technology using the existing infrastructure: the power lines.

Bearing in mind the economic burden involved, it is apparent that new communications networks need to be based on both own and third‑party solutions.

provides a product line designed to cover Cyber Security requirements

3

Different technologies are required to deploy the diverse smartgrid applications. Communication Technologies play a fundamental role


Independent of the solution adopted, the following requirements should be considered:

Devices must be robust, suitable ‑for the environmental and electromagnetic compatibility requirements of power system.

Performance is critical. Local ‑area networks must be reliable, fault tolerant and behave as expected.

Implementations must provide ‑Cyber Security, to prevent the disruption of critical applications due to malicious acts (hackers), malfunctions and human errors.

Description

4

Main products

solutions help to implement the networks required for building the grids of the future.

DRA‑2, an universal communication device to transmit the services from secondary distribution substations to higher levels in the electrical grid, through a wide range of interfaces.

NDLC‑1 MV PLC allows transmission over medium‑voltage lines providing robustness against channel distortion and signal‑to‑noise ratio.

EMR, CIC and SIP devices with WAN interfaces, enable secure access to remote installations using data services provided by mobile network operators.

Wireless routers type WLS link networks physically separated by several kilometers. It can be used for transmitting the information from trains to base stations or viceversa.

NRTR router uses standard routing protocols (OSPF, RIP) or a proprietary routing protocol (DIGP) to support highly meshed networks, multipath and load balance.

SWT Ethernet switches offer optical fiber ports for transmitting services from distribution substations.

CIC and SIP terminal servers are a flexible and secure gateway between Ethernet networks and serial devices. SIP version GW 104‑101 is designed to connect RTUs with 101 protocol into control centers with a 104 protocol master.

A 10/100Base‑Tx to 100Base‑Fx converter type E2F is also available as an accessory.


5


DRA‑2 Universal communication node for medium voltage secondary substations. DIN rail mounting

NDLC‑1 Digital power‑line carrier system for medium voltage distribution lines. 3U rack mounted chassis or optional DIN rail mounting

EMR WAN compact router for industrial Ethernet networks. Wall , DIN rail, and optional 19” rack mounting

WLS Wireless IEEE 802.11 Access Point & Router for Industrial Environments. Wall mounting

NRTR Real time router specially suited for SCADA transport services in Electrical Substations. 19” rack mounting

SWT Managed Gigabit/Fast Ethernet switch for Electrical Substations. 19” rack and DIN rail mounting

SIP Serial to IP encapsulation for industrial applications. 19” rack and DIN rail mounting

CIC Communications IP concentrator for industrial applications. 19” rack mounting

E2F 10/100Base‑Tx to 100Base‑Fx converter. Wall mounting

For additional functionality and technical characteristics of the products, please contact

(formerly known as DIMAT) applies its communications expertise and its knowledge of the power utilities requirements to supply robust and innovative solutions, specially designed for a cyber secure infrastructure.

Our product offering includes routers which improve the operation of the communication network by path redundancy, traffic control and safe access to remote electrical installations, as well as a Fast Ethernet/Gigabit Ethernet switches specially designed for electrical substations.

6

DRA-2Universal communication node

DescriptionThe DRA 2 is designed to transmit the services from a Secondary Substation to higher levels in the electrical grid, through a wide range of interfaces.

In some Secondary Substations, PLC MV technology is the only valid option, whereas in others optical fiber or even ADSL (PSTN) can be used. Moreover, in cases where none of the above options can provide sufficient communication, wireless interfaces can be used.

The standard Fast Ethernet ports are usually used to provide service to the equipment in the Secondary Substation, such as PLC meter reading concentrators, remote telecontrol units, protections, fault circuit indicators, cameras or IP phones.

The standard Gigabit Ethernet SFP bays permit the inclusion of the DRA‑2 in Optical Fiber ring‑type topologies, or its use as a high‑capacity uplink.

DRA‑2 supports advanced features of Ethernet switching (L2), IPv4 routing (L3), and traffic management, including tunneling.

(1) on request(2) in the process of being developed

Key featuresEquipment constitution• . A serial maintenance interface, 6 Fast Ethernet ports in 10/100Base-Tx configuration, 2 Gigabit Ethernet SFP bays, and the interfaces provided by the available options:

GPRS, UMTS and ADSL ‑ Combinations: 1 GPRS; 2 GPRS; 1 GPRS + 1 ADSL(1); 1 ADSL(1); 1 GPRS + 1 UMTS ; 1 UMTS + 1 ADSL(1) ; 1 UMTS

PLC-MV type BPLC (high speed) ‑or SSPLC (long range) or others Combinations: 1 BPLC; 2 BPLC; 1 SSPLC(2); 2 SSPLC(2); 2 additional Fast Ethernet(2) (100 Base‑Tx or 100Base‑Fx); 1 RS‑232(2) (not valid with 1 ADSL); 1 RS‑485(2) (not valid with 1 ADSL); 1 optical serial interface(2) (not valid with 1 ADSL); 1 PLC meter reading concentrator(2)

Switching functionality• . Port speed automatic detection. STP and RSTP. VLANs management per port. QoS management per VLAN (802.1p). Broadcast and Multicast traffic limitation. MAC access control lists and 802.1x user authentication. Level 2 switching between Ethernet and PLC‑MV environment

Routing functionality• . Static routing information (configured by the user) and dynamic routing information (RIP and OSPF routing protocols). VRRP redundancy protocol. Filtering and Stateful IP firewall. Up to 6 simultaneous IPSec tunnels with DMVPN (Dynamic Multipoint VPN) and NHRP (Next Hop Resolution Protocol) support. IPIP (IP over IP) and GRE tunnels. Assignment of QoS to the incoming traffic, and layer 3/4 QoS management. Models having 2 wireless interfaces support the establishment of two IP links simultaneously, both performing as active backup, with fast switching, or load balance

It can be managed locally and remotely, • through a console (115200 bit/s) or through a built‑in web server, http or https, SSH connection and Telnet

It supports the SNMPv1 and SNMPv2c • protocols, as well as other protocols and services such as DHCP, NTP and TACACS+

DIN rail mounting (EN 50022, BS 5584, • DIN 6277‑3)

Height: 140 mm; Width: 220 mm; • Depth: 94 mm

16‑75 Vdc (48 Vdc nominal) or • multirange (80‑360 Vdc, 80‑260 Vac)

Power consumption: max. 15 W•

Temperature range: ‑20° C to +70° C•

Weight: 1 kg•


7


Communications for the medium voltage distribution grid

NDLC-1Digital PLC system for MV lines

DescriptionThe purpose of the NDLC 1 is to allow the transmission of telecontrol and remote measurements signals over the medium voltage power conductors in spite of any time‑varying amplitude and group delay distortion which might appear, becoming an essential tool for the fully automation of the network.

To achieve this goal the system makes use of a Spread Spectrum Direct Sequence scheme (DSSS).

Spread Spectrum is a means of transmission in which the signal occupies a much broader bandwidth than the minimum necessary to send the user information. The bandwidth spreading is accomplished by means of a code independent of the message. The receiver uses a synchronized code for the bandwidth compression and subsequent recovery of the original information.

This fact allows the continuity of the transmission in spite of the severe distortions which may suddenly appear in the medium voltage line frequency response because of topology changes.

Key featuresDSSS modulation•

Intrinsic robustness against channel • impairments (recommended for rural environments)

Half duplex, at 2 wires, with independent • configuration at each direction

Telecontrol (TC) channel. V.24/V.28 • (EIA RS‑232) of ITU‑T. It has priority over TM channel. At front: 9‑pin SUB‑D female connector. At rear: DIN 41612 male connector

Remote measurement (TM) channel. • V.24/V.28 (EIA RS‑232) of ITU‑T or RS‑485 (TIA/EIA). At front: 9‑pin SUB‑D female connector. At rear: DIN 41612 male connector

Telecontrol (TC) communications • protocol: selectable among DLC, SAP20 and IEC 870‑5‑104

Remote measurement (TM) • communications protocol: selectable among DLMS, IEC 62056‑21 and IEC 870‑5‑102

Transmission frequencies: From • 100 kHz to 1 MHz

Transmission rate: Depending on the • Gain Processing (Gp), and with its corresponding bandwidth

For Gp 31: 1200 bit/s (BW: 75 kHz), ‑2400 bit/s (BW: 150 kHz), 4800 bit/s (BW: 300 kHz), and 9600 bit/s (BW: 600 kHz)

For Gp 63: 600 bit/s (BW: 75 kHz), ‑1200 bit/s (BW: 150 kHz), 2400 bit/s (BW: 300 kHz), and 4800 bit/s (BW: 600 kHz)

Distances up to 15 km•

Output power: 6W•

Minimum S/N ratio at the receiver: • ‑3 dB

Output impedance of the transmitter: • 28 Ω

Input impedance of the receiver: 1.2 k• Ω (in the available band)

It can be managed locally by means of • an emulator communication program, such as HyperTerminal. Connection between the PC and the NDLC‑1 via an USB 2.0 mode device (115200 bit/s)

It is provided with a connector for •installation inside a 3 s.u. high shelf (133 mm). Optionally, DIN rail mounting

Height: 129 mm; Width: 50 mm; •Depth: 192 mm

Power supply: 48 Vdc ± 20%•

Consumption: < 1.5 A•

Temperature range: -10°C to +60°C•

Weight: 1 kg•

EMRWAN compact router

EMR is a compact industrial router that enables remote LAN/WAN integration making use of the wireless data services (GPRS/3G).

Key featuresA serial maintenance interface, 1 Fast • Ethernet port in 10/100Base‑Tx (RJ‑45) configuration for DIN rail mounting or 4 Fast Ethernet ports in 10/100Base‑Tx (RJ-45) configuration or 3 ports in 10/100Base-Tx (RJ-45) configuration and 1 port in 100Base‑Fx (multimode, MT-RJ) configuration, for wall mount or 19” rack mounting

WAN connection type: GSM/GPRS or • UMTS/HSDPA

Dual SIM• option (wall and DIN mount)

Three Sw/Fw models available:• Basic version (3EMRLite) ‑ : Port speed automatic detection. Static routing information (configured by the user) and dynamic routing information (RIP routing protocol). VRRP redundancy protocol. NAT rules. The Fast Ethernet ports have the same IP addressMiddle version (3EMRG/3EMRU) ‑ : The same facilities as the 3EMRLite and, furthermore:

IPSec tunnels with DMVPN (Dynamic • Multipoint VPN) and NHRP (Next Hop Resolution Protocol) supportIPIP (IP over IP) and GRE tunnels•

High version (3EMRPro) ‑ : The same facilities as the 3EMRG/3EMRU and, furthermore:

VLANs management per port. • The Fast Ethernet ports can have different IP addressesQoS based on different IP traffic • patternsFiltering and Stateful IP firewall•



Mechanical enclosures (H/W/D):• Wall mount: 42/247/203 mm ‑DIN rail: 45/118/126 mm ‑19” rack (optional): 43/442/246 mm ‑



Extended temperature range: ‑40°C to • +85°C

Weight: 960 g (wall mount), 200 g (DIN • rail) and 1 kg (19” rack)

WLSAccess Point & Router

WLS allows both, the establishment of a Robust Secure Network (Access Point function) and the deployment of wireless links between different sites.It conforms with IEEE 802.11 protocol suite.

8

GSM/GPRS and UMTS/HSDPA transmission technologies to achieve different bandwidth requirements

Key featuresA serial maintenance interface, 3 or • 4 Fast Ethernet ports in 10/100Base‑Tx (RJ-45) configuration or 3 ports in 10/100Base-Tx (RJ-45) configuration and 1 port in 100Base‑Fx (multimode, MT-RJ) configuration

IEEE 802.11 b/g/a radio•

Virtual Access Point ‑ multiple SSID•

Authentication•Open System ‑Shared Key ‑IEEE 802.1x ‑WPA with RADIUS/Pre‑shared key ‑WPA2 with RADIUS/Pre‑shared key ‑

Dynamic key exchange•EAP‑MD5 ‑EAP‑TLS ‑EAP‑TTLS ‑EAP‑ PEAP ‑

Data Encryption•TKIP ‑AES ‑

MAC filtering per SSID•

SNMPv1 and SNMPv2c protocols•


Wall mount•

Height: 42 mm; Width: 247 mm; Depth: • 203 mm



Temperature range: ‑20°C to +70°C•

Weight: 960 g•



NRTRReal time router

Description

NRTR equipment is a real time router that uses proprietary technology allowing to build meshed networks over a wide range of interfaces and media.

It is especially suited to utility companies needing telecontrol transport services, and is capable to accept clients for many standard and legacy telecontrol protocols, such as IEC 870‑5‑101, IEC 870‑5‑104, DNP 3.0, Vancomm, Modbus, and Optomux. A built‑in 104‑101 Gateway enables the NMS (Network Management System) to manage a RTU based on 101 protocol as it was a RTU running 104 protocol.

In order to fulfil security and reliability requirements, our proprietary link protocols, in addition to those already present in standard routers, are specially developed to be deployed over owned or hired transport resources, including analog communication channels, and across existing network structures using PDH/SDH or LAN and over Medium Voltage networks by means of the suitable couplers.

Key features

Ability to build any network topology•

Automatic adaptability to topological • and traffic changes

High immunity against electromagnetic • disturbances

Proprietary integrated network • supervision / SNMP V1, V2c and V3 agent

High degree of data integrity•

Built‑in Gateway 104‑101 service•

9

Standard routing protocols (OSPF, • RIP) and a proprietary routing protocol (DIGP) to support highly meshed networks, multipath and load balance

Proprietary link protocols, in addition • to those already present in standard routers, to be deployed over owned or hired transport resources


Redundant power supply: 48 Vdc • ±20% or 110‑240 Vac/Vcc


Supports hot‑swap•


19” rack mounting•

Height: 96 mm; Width: 483 mm; Depth: • 258 mm

Weight: 5.3 kg (without options)•

Capacity• : Two 10/100 Base‑Tx Ethernet interfaces always present, as part of main module (NRBA), and 14 additional interfaces by means of hot‑swap user modules (7 modules)

Available interfaces• :Local area network interfaces type ‑Ethernet at 10/100 Mbit/s, with electrical or optical interface (NRET module)Low‑speed line serial interfaces ‑(V.24/V.28, V.24/V.11, V.35, EIA‑530‑A, V.36 and X.21) (NRSV module)Medium ( ‑ NRSG module) and high‑speed (NRDM(1) module) line serial interfaces (G.703 at 64 kbit/s, G.703 at 2 Mbit/s)MV PLC interface for Medium ‑voltage networks (NRPL card with OFDM technology)

Standard and proprietary routing protocols(1) A maximum of 4 modules is only admitted

for the NRDM type module

NRET NRSG NRSV NRDM

DescriptionSWT is an Ethernet switch intended for those big scale LAN’s deployments where port density, switching performance and logical complexity are the main challenges to surpass.

SWT devices bring the necessary capacities to implement the automation of electric substations according to standard IEC‑61850.

Grouping services ‑ It is convenient for electrical companies to have the different services within the substation separated and not accessible one from the other. In order to achieve this separation of traffic, different VLANs per service can be used. This way, different company departments will have access to their VLANs, and hence, only to the devices and equipment, under their own responsibility.

Critical services ‑ The services running in an electrical substation may be different in importance. It is not the same to have IP telephony as it is to send orders to open a breaker. Using the quality of service feature for the different services allows electrical companies network architects to identify the critical services within the substation, warranting that all that traffic is treated with the adequate priority.

Layer 3 model - A Layer 3 specific model of the SWT supports static routing information (configured by the user) and dynamic routing information (RIP and OSPF routing protocols), and advanced features of IPv4 routing (L3) like: NAT rules, tunneling capacities, QoS based on different IP traffic patterns, Filtering and Stateful IP firewall.

Key featuresA serial maintenance interface, 2 Gigabit • Ethernet SFP bays, and up to 40 Fast Ethernet front ports for 19” rack mounting or up to 8 Fast Ethernet ports for DIN rail mounting, being available the following arrangement:

19” rack: 8, 16 or 24 Fast Ethernet ‑front ports in 10/100Base‑Tx (RJ‑45) configuration and 4, 8, 12 or 16 Fast Ethernet front ports in 100Base‑Fx (multimode, MT-RJ) configurationDIN rail: 4 Fast Ethernet ports in ‑10/100Base-Tx (RJ-45) configuration and 4 Fast Ethernet ports in 100Base‑Fx (multimode, MT-RJ) configuration or 8 Fast Ethernet ports in 10/100Base‑Tx (RJ-45) configuration or 8 Fast Ethernet ports in 100Base‑Fx (multimode, MT-RJ) configuration

PoE power-supply option in the first four • front ports (19” rack). Max. PoE power: 12 W

Full Duplex Wired Speed switching • core

Port speed automatic detection•

STP and RSTP•

Broadcast and Multicast traffic limitation•

MAC access control lists and 802.1x • user authentication

QoS: Diffserv architecture (Per Hop • Behaviour)

Within a QoS domain ‑ IEEE 802.1p / ‑CoS fieldsOutside a QoS domain, SWT can ‑assign IEEE 802.1p priorities based on origin MAC, destination MAC, physical port or VLAN

Multiple VLANs (250 simultaneously)•

Q‑in‑Q support•

Port mirroring•

IGMP snooping•

Interoperation with any manufacturer • IED that complies with the IEC‑61850 requirements

Layer 3 specific model•



Mechanical enclosures: 19” rack and • DIN rail mounting

19” rack. Height: 44 mm; Width: • 445 mm; Depth: 317 mm

DIN rail: Height: 166 mm; Width: 65 mm; • Depth: 115 mm

Power supply:• 19” rack: 36‑75 Vdc (48 Vdc nominal) or ‑multirange (80‑360 Vdc, 80‑260 Vac). Possibility of redundant power supplyDIN rail: 20‑75 Vdc (48 Vdc nominal) or ‑multirange (80‑360 Vdc, 80‑260 Vac)

Consumption: 25 W (19” rack) and • 15 W (DIN rail)


Weight: 4.5 kg (19” rack) and 500 g • (DIN rail)

SWTGigabit/Fast Ethernet switch

10

Configurable priority for each port. Critical traffic is processed first


SIPSerial to IP encapsulation

Serial to IP encapsulation devices type SIP allow an easy integration of Non‑IP serial devices into a secure IP network.

SIP is able to tranport several serial protocols. The GW104‑101 model is able to managing from a control centre a RTU based on 101 protocol as it was a RTU running 104 protocol.

SIP includes an optional WAN interface that increases connectivity possibilities, making use of the wireless public networks (GPRS, UMTS, HSDPA).

In this way, it is possible to have simultaneously two data flows between: serial and Ethernet interfaces & serial and WAN interfaces.

Key featuresA serial maintenance interface, 1 • Fast Ethernet port in 10/100Base‑Tx (RJ‑45) or 100Base‑Fx (multimode, MT-RJ) configuration, and 1 serial dual port RS‑232/RS‑485 (2‑wire or 4‑wire)Two additional serial ports for RS‑232 • interfaceAn optional WAN interface • (GPRS/UMTS/HSDPA)Dual SIM• option (available in case of 1 serial port)Serial port characteristics:•

data bits: 5, 6, 7 or 8 ‑stop bits: 1 or 2 ‑parity: none, even or odd ‑speed: 600 bit/s to 115200 bit/s ‑

Encapsulation protocols: IEC 60870‑5 • 101/102/103, DLMS, GESTEL, MODBUS, DNP 3.0, SAP20, PROCOME, Pid1, TwcSpecific GW 104-101 model• IPSec or SSL/TLS client• It can be managed locally and remotely, • through a console (115200 bit/s) or through a built‑in web server, http or https, SSH connection and TelnetIt supports the SNMPv1 and SNMPv2c • protocols, as well as other protocols and services such as DHCP, NTP and TACACS+Mechanical enclosures (H/W/D):•

Wall mount: 41/158/120 mm ‑DIN rail: 140.5/46/140.5 mm ‑

10.5‑59 Vdc (12 Vdc nominal), • 20‑75 Vdc (48 Vdc nominal) or multirange (85‑360 Vdc, 60‑260 Vac)Power consumption: 7 W• Temperature range: ‑20°C to +70°C• Weight: 400 g (wall mount) and 200 g • (DIN rail)


11

CICSerial to IP encapsulationWith respect to the SIP, CIC increases connectivity possibilities. See key features.

Key features

A serial maintenance interface, • 1 switch Ethernet with two ports in 10/100Base‑Tx (RJ‑45) or 100Base‑Fx (multimode, MT-RJ) configuration, and 1 serial dual port RS‑232/RS‑485 (2‑wire or 4‑wire).

Four• or eight additional serial ports for RS‑232 interface or optical fiber (glass or plastic).

An optional WAN interface • (GPRS/UMTS/HSDPA).

Dual SIM option.•

19” rack mounting.•

Height: 45 mm; Width: 484 mm; • Depth: 213 mm.

20‑75 Vdc (48 Vdc nominal) or • multirange (85‑360 Vdc, 60‑260 Vac).

Power consumption: 20 W•

Temperature range: ‑20°C to +70°C.•

Weight: 2 kg•

Easy integration of serial devices into an IP network

Transport of several serial protocols is optimized

E2FConverter

E2F converts any 10/100Base‑Tx (RJ‑45) Ethernet port signal into a fiber optic 100Base-Fx (multimode, MT‑RJ) signal. This can achieve longer connectivity distances and immunity to electrical disturbances.

It has an integrated isolated multirange (55‑360 Vdc, 50‑260 Vac) power supply to regenerate all the signals properly.

Wall mount. Height: 97 mm; Width: 167 mm ; Depth: 30 mm.

Please visit our website for local contact information in your area.

ZIV constinuously strives to improve products and services. The technical information included in this document is subject to change without notice.

http://www.ziv.es http://www.communications.ziv.es/

Rev

.0 D

ecem

ber 2

011

SpainHeadquarters (ZIV Group):Parque Tecnológico, 21048170 Zamudio, VizcayaTel.: +34 94 452 20 03Fax: +34 94 452 21 40http: //www.ziv.es

Madrid:C/ Diego Marín Aguilera 14Pol. Leganés Tecnológico28918 Leganés, MadridTel.: +34 91 352 7056Fax: +34 91 352 6304

Barcelona:C/ Antonio Machado, 78‑80Viladecans Business Park - Edificio Australia08840 Viladecans, BarcelonaTel.: +34 93 349 07 00Fax: +34 93 349 22 [email protected] http://www.communications.ziv.es

Sevilla:Avda. de la Aeronáutica, 10(Edificio Helios) Planta 7ª, módulo 441020 SevillaTel.: +34 954 461 360Fax: +34 954 462 484

Las Palmas:Fernando Guanarteme 16. Ofic. 1º A35007 Las Palmas de Gran CanariaTel.: +34 94 452 20 03

USA and Canada:ZIV USA, Inc.5410 Newport Drive, Suite 38Rolling Meadows, IL 60008Tel.: +1 224 735 39 61

+1 847 299 65 80Fax: +1 224 735 39 62

+1 847 299 65 81

Brazil:Av. Padre Natuzzi, 200CEP 24.360‑180. São FranciscoNiteroi, Rio de JaneiroTel.: +55 21 36 02 8511Fax: +55 21 36 02 8511 opção 5

India:CG‑ZIV Power Automation Solutions, Ltd.9C, Jigani Industrial AreaBangalore ‑ 560 ‑ 105Tel.: +91 8110 143 461Fax: +91 8110 143 430

United Arab Emirates:Grosvenor Tower, Sheikh Zayed RoadMezzanine Floor, M07PO Box: 3089 – Dubai – U.A.ETel: +971 4 3289432Fax: +971 4 3296411

Mexico:Horacio No. 1213Col. Polanco, Delegación Miguel HidalgoC.P: 11550 ‑ México D.F.Tel.: +52 044 (55) 58 26 76 44Fax: +52 (55) 55 31 51 72

Russia:Krimsky Val, d 3,str 2, office 514.119049 MoscowTel.: +7 495 642 63 12

Singapore:10 Anson Road No. 25‑07International PlazaSingapore 079903Tel.: +65 6410 9625Fax: +65 6410 9631

making the smartgrid real - crompton greaves · making the smartgrid real networking solutions for...

Documents