ZIV has implemented over 250 integration and automation systems worlwide. Here are some of the projects:

Integrated Protection and Control Systems
Mississauga ON, Canada (Enersource)

Distribution Automation System
Control and Automatic Voltage Restoration
Silver Dollar City, Branson MO (WRVEC)

Dual Fiber Optic Ring Installations
Rio de Janeiro, Brazil (CERJ)

Power Plant Protection and Control System
Litoral de Almeria, Spain (ENDESA)

Power Plant Protection and Control System
Teruel, Spain (ENDESA)

Power Plant Protection and Control System
Dock Sud Power Plant, Argentina

Protection Management System
Canary Islands, Spain (UNELCO)

Integrated Protection and Control System
Candeal Substation, Salvador de Bahía, Brazil

Integrated Protection and Control System
ACTUR Substation, Spain (ERZ)

Distribution Protection and Control System
Metro of Madrid, Spain (Madrid Subway System)

Integrated Protection and Control System
Las Palmas Airport, Canary Islands, Spain

Integrated Protection and Control Systems
Mississauga ON, Canada (Enersource)

The two protection and control systems installed in Enersource distribution substations (former Hydro Mississauga) are fine examples of integration in new construction.

The substations have two incoming lines feeding identical transformers. Each transformer secondary is connected to a bus with three feeders. A tie breaker allow to connect both busses.

Each feeder is outfited with a ZIV protection and control IED model 7IRD, providing all the protection and control functions needed. The only other element in each one of the feeder panels is one blade switch used to block the 7IRD recloser for maintenance purposes (providing visual indication of the block).

Transformers are protected with differential ZIV relays model 8IDN as well as high side and low side overcurrent protection provided by 7IRD units. The transformer 7IRD control module is in charge of collecting the transformer protection status as well as temperature and fan operation.

The tie breaker is controled by a ZIV control unit model 6MCD, programmed with logic and interlocks to prevent misoperations when connecting both busses or paralleling the transformers.

The protection and control units are divided in two groups. Each group is connected via fiber optics to ZIV data diffusers/concentrators model CCN. The CCNs are connected to the ZIV substation central unit model CPX also via fiber.

The CPX serves as the substation database for SER (sequence of event recorder) syncronizing every IED in the substation. The other function is to perform the communication management. The CPX also monitors the communications channels.

The CPX is connected in a local LAN with the ZIV substation console model PCD running ZIV sofware package ZIVerdesk. The CPD is the substation HMI enabling the customer to analyze and operate the substation. Having the protection integrated in the system, the CPD also have access to every protection function, including viewing and changing protection settings.

A leased telephone line connects the CPX with Enersource control room. The PCD is replicated in the control room with the same substation HMI capabilities as the one in the substation.

Both systems have been implemented with the open protocol PROCOME. Also, the CPX is capable to communicate with the control room using DNP 3.0. This feature has been implemented to integrate the substation in the future utility's new SCADA system.

Distribution Automation System
Control and Automatic Voltage Restoration
Silver Dollar City, Branson MO (WRVEC)

Silver Dollar City

For more detailed information, please download here the case study for this project in pdf format.

Dual Fiber Optic Ring Installations
Rio de Janeiro, Brazil (CERJ)

10 Integrated Protection and Control Systems were comissioned in 1998 in Rio de Janeiro (Brazil) with ZIV terminal units and CPX central computers.

The substations at Piratininga, Campos Eliseos, Araurama, Inoa, Riobranco, and Trompetas are part of a one-hundred-substation order that Companhia de Electricidade de Rio de Janiero (CERJ) placed in 1997 and 1998.

The communication system used in these substations consists of a dual self healing fiber optic loop and dual CPX control units for redundancy.

Power Plant Protection and Control System
Litoral de Almería, Spain (ENDESA)

In 1996 ZIV supplied the protection and control equipment for a newly constructed power plant in Spain, Litoral de Almería. (ENDESA Generation).

The protection and control system is comprised of a ZIV Central Unit (CPX), an operation console (PCD), a redundant programmable logic controller (Siemens PLC Simatic 115 H), a Circuitor network analyzer, and over one hundred ZIV protection and control IEDs.

The protection and control IEDs are connected to the CPX through fiber optic concentrators using a star configuration. The CPX is connected to the logic controllers using a Siemens SINEC H1 network. The CPX is connected to the PCD Console using a standard Ethernet network.

Power Plant Protection and Control System
Teruel, Spain (ENDESA)

There are five separate systems installed at this plant consisting of a ZIV central Unit (CPX), a Siemens PLC Simatic 115U (one installation utilizes a redundant PLC) and more than 20 ZIV protection and control IEDs.

The IEDs are connected in a star configuration to the CPX through fiber optic lines (50 to 500 meters long). The CPX communicates with the PLC through a RS-232C connection utilizing 3964R protocol. The 115U PLC's are connected to the Power Plant Process Control System via RS-485 links.

The 5 groups are connected to each other in a SINEC L2DP (PROFIBUS) network. The five CPX units also have a common connection to a CPD Console.

Special control interlocks, automatic reconfiguration, and control logic for more than 130 breakers are part of the implementation design for this project.

Power Plant Protection and Control System
Dock Sud Power Plant, Argentina

ZIV was the supplier of the protection and control system in this joint project with ABB and Babcock Wilcox. The system consists of a CPX, an operation console PCD, a PLC Simatic 155H, and more than 25 ZIV protection and control IEDs.

The IEDs are connected to the CPX through fiber optic cables in a star configuration. The CPX communicates with the PLC through a RS-232C connection and uses 3964R protocol for communication.

Protection Management System
Canary Islands, Spain (UNELCO)

A management system for protection information was designed to simplify remote access to protection, control and monitoring equipment used in the power system serving the seven Canary Islands. Main objectives of this system included:

• Automatic data collection process.
• Analysis improvement by organizing the protection information - events, fault reports, historical and statistical reports, oscillographic records, etc.

The system is based on a distributed architecture consisting of:

• Protection, control and monitoring digital IEDs with communication functions.
• Transparent communication concentrator/diffuser located in several substations (CCN).
• Intelligent management units for protection information located in substations (GID).
• Central protection desk located in the control center.

Unelco P&C System (Click on picture to enlarge)

Functions at Substation Level

The equipment located at the substation level (communication concentrator/diffuser and protection and control IEDs) provides a complete communication front-end system that enables the user to access any protection and monitoring device connected to the system (through the same communication port) using a specific manufacturer's communication program. This design allows equipment from various manufacturers using different protocols (and programs) to communicate within the same system.

In addition, the GID carries out a cyclic interrogation for protection and monitoring information. The cyclic interrogation consists of time synchronization, collection of settings, event records, fault reports and oscillographic records. This information is then stored at the GID level in a standard, unified common format. In this format, the information is ready to be sent to higher levels within the system for analysis.

The GID is also designed to perform local fault analysis based on the information retrieved. This analysis consists of the identification of an fault, the analysis of individual protection functions, and the analysis of the coordination between adjacent protective devices (for example the coordination between a feeder relay and associated tie breaker back up).

Communication System Architecture - Protocol Emulation

The GID/CPX at the Canary Islands communicates with the following equipment from different manufacturers:

Integrated Protection and Control System
Candeal Substation, Salvador de Bahia, Brazil (COELBA)

At Candeal Substation a SPA Bus from ABB is connected to a ZIV Central Unit. Along with ZIV protection and control IEDs, the CPX at this substation in Salvador de Bahía interrogates ABB relays (SPAJ-140, SPAC-535, SPAU-130,…) in a fiber optic ring.

Candeal P&C System (Click on picture to enlarge)

Integrated Protection and Control System
ACTUR Substation, Spain (ERZ)

In this project equipment from other vendors was incorporated into a communication network managed by a CPX supplied by ZIV. The owner of the installation is ERZ (ENDESA).

At Actur Substation a CPX and a local console (PCD) were connected to several 7IRD's protection and control IEDs, located at the same installation using a star connected fiber optic network.

The same central unit was connected via radio modems to several RTU's located in other stations. The RTU protocol used was MODBUS. The vendor of the modems and RTUs was FARELL INSTRUMENTS, S.L.

• Model of the radio modem connected to the CPX: TMOD
• Model of the radio modem at the remote station: TDAM
• Generic model of the I/O (analog and digital) modules: RMF

Actur P&C System (Click on picture to enlarge)

Distribution Protection and Control System
Metro of Madrid, Spain (Madrid Subway System)

One CPX/GID at each underground substation connects all the ZIV protection and control IEDs in a star configuration. Each CPX is connected in an ABB SPA Bus to the rest of the ABB Railroad Control System. Emulation of ABB protocol is performed at the CPX level.

Integrated Protection and Control System
Las Palmas Airport, Canary Islands, Spain (AENA)

More than 60 ZIV protection and control IEDs are installed at Las Palmas Airport Protection and Control System (Canary Islands). The system was commisioned in late 2000.