CCNS for ENDESA – Chile

ENDESA-Chile is the largest privately owned electricity generation company in Chile measured by installed capac-ity and one of the largest electricity generation companies in Latin America. They have chosen ABB’s Converged Corporate Network Solu-tions also for their mission critical communica-tion infrastructure.

Converged Corporate Network Solutions for the RALCO-Projects make use of latest Utility Communication equipment

Reference

About ENDESA –Chile & the RALCO-project

ENDESA-Chile owns and operates about twenty generation facilities in Chile with a total installed capacity of 4 GW, which is about 40% of the country’s power generation. About 70% of the plants are hydroelectric, the remaining stations are oil or gas fired thermal installations.

Due to the extremely stretched topology of Chile, the electricity supply system is divided into three regions (North, Central, South). The new Ralco dam on the Biobio river is under construction to cover the growing energy demand in the central part. When fully operational, it will generate about 570 MW.

Growing Communication Needs

The related infrastructure also needs to be strengthened with the growing energy pro-duction. New substations and control centers have been built to increase the availability of the power supply in the southern regions of Santiago de Chile. Therefore, the partly existing utility communication systems also had to be extended. The following are the major requirements:

Optical STM-1 and PDH connections between Charrua and Central Ralco stations

60 Mbps IP connectivity between the SCADA-sites in above stations and Antuco for operational & office traffic

Optical links shall be repeaterless, even for distances of more than 140 km

2 Mbps IP-based video-surveillance Fully redundant teleprotection-signalling

solution Standard & Hotline telephone services

One communication network

Implemented Solution

Twelve sites for communication installations were identified and realised. Figure 2 shows some of the network details such as:

All SDH and PDH optical links are 1+1 protected, based on ABB’s versatile uni- versal FOX-family multiplexer

Additional system redundancy is added by integrating all stations in a 2 Mbps ring structure, closed via existing radio-links

Teleprotection-signalling is sent as main- path over the 1+1 PDH links, using the TEBIT-card as teleprotection-device, integrated in the FOX

Teleprotection-signalling has a dedicated back-up – path via Power Line Carrier (PLC) using ETL580 in combination with ABB’s latest protection equipment NSD570

The 145 km STM-1 stretch can be made without repeaters by using ABB’s LHC550 long-haul optical devices

High IP-bandwidth combined with TDM- traffic can be achieved by using AXX155E, which multiplexes E1- & IP-signals in a seamless way into STM-1

An IP-backup path is established by FOX LAWA4 card, which routes priority IP-traffic via alternative radio paths

Figure 1: Sistema Interconectado Central (SIC)

Benefi ts for ENDESA-Chile

ENDESA-Chile has good reasons to be proud of the solution they have chosen; as a future oriented utility they make best use of com-binations of advanced applications and latest technologies.

The Director of Telecommunication of ENDESA-Chile clearly states the targets for his team:

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“Communication is an importantpuzzle part for the overall success of the

RALCO-project. Reliable delivery ofrevenue generating electricity is notpossible without a state-of-the-art

underlying communication infrastructure.Cost pressure does not allow us to run

dedicated networks for the variousapplications; with ABB’s ConvergedCorporate Network Solutions we areextremely well prepared to serve the needs of the various interest groups,

such as SCADA-, teleprotection- & alsoIT-crews with their increasing bandwidth

requirements. By using ABB’s fiberoptic long haul technology an othertarget could be achieved: no costly

repeater stations for communicationmeans are needed. Together with an effi-

cient network management tool, thishelps to cut operational costs further.”

SCADA, Teleprotection, Video & Offi ce Applications

Figure 2: RALCO Network

ABB Switzerland LtdUtility Automation SystemsBrown Boveri Strasse 6CH-5400 Baden/SwitzerlandPhone +41 - 58 589 37 35or +41 - 844 845 845 (Call Center)Fax +41 - 58 585 16 82e.Mail utility.communication@ch.abb.com

www.abb.com/utilitycommunications

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FOX515: Versatile combined access- & transport-multiplexer for utility applications, including protection, legacy data, voice and LAN-connectivity.

AXX155E: Integrated Access-Device combin-ing high-speed Ethernet/IP traffic with 2 Mbps PDH data-streams into STM-1.

LHC550: LHC covers most of the requirements to establish optical communication links of up to 250 km – for transmission capacities from 8 Mbit/s up to 622 Mbit/s.

NSD570: The NSD570 system was designed to provide simple commissioning, operation and supervision of teleprotection links. One or two systems can be easily placed in one rack. A mix of analogue and digital systems in the same rack is also possible.

Communication devices used in brief: