SEPAC Corporation

SEPAC Corporation

- Model XAR4-DE - Supervisory Control System

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Supervisory control system with monitoring, telecontrol, telemetering, electric network automation and system management functions. This device guarranties process telecontrol through any of the servers or operation terminals. This is achieved using a LAN Ethernet IEEE 802.3 , connected to a front end processor.

The acquired information from remote modules is processed by the front end processor and retransmitted to every node in the network.

The SCADAPAC XAR 2-D system works with two paralell servers, guarrantying the system’s redundancy.
Also it has a information terminal for engineering exploitation, system management, statistics etc.

The man-machine interface (MMI) is programmed using a OSF MOTIF with windows environment.

Additionally to traditional SCADA functions, SCADAPAC XAR 2-D can perform the following:

ELECTRICAL NETWORK AUTOMATION

  • GIS SYSTEM CONNECTION
  • PLC FUNCTIONS
  • ENGINEERING TERMINAL
  • MANAGEMENT SERVER
  • SAPR3 SYSTEM CONNECTION
  • INTELLIGENT PHONE COMMUTER
  • REMOTE DIAGNOSTICS VIA PHONE LINE
  • REMOTE DIAGNOSTICS VIA INTRA OR INTERNET.
  • MAINTENANCE MODULES
  • MONITOR AND CONTROL OF SUBSTATION AUTOMATION SYSTEMS
  • WAN CONNECTION

GENERAL DESCRIPTION.
The SCADAPAC XAR 2D is part of a series of automation products developed by Eseam, Inc. based on open architectures for software and hardware platforms.
Our core technology is based on HP computer equipment and Motorola Computer Group’s embedded boards for the different kinds of front end processors.

HARDWARE ARCHITECTURE

The SCADAPAC XAR 2D supervisory control system is comprised of two servers, a front end processor, two printers (events and reports) and can support up to 32 communication channels.

Communications run through a LAN Ethernet, keyboard, printers and UPS.

SOFTWARE ARCHITECTURE

The programming structure of the software is divided into three great blocks.

Each of these blocks represent the application and function level of each software module that comprise the entire MMI.

The core of each of this layers is UNIX or Windows according to user´s requirement.

The system’s phylosophy comprises different programming modules that act independently and perform their links to the rest of the system through a relational data base and the different routines on the operative system.

THE THREE BLOCKS ARE:

The first block of the sytem constitutes the basic programming modules, fundamental for the system’s operation.

  • data base
  • SCADA program
  • communication module
  • diagram editor
  • function and report management
  • system monitoring
  • The second block comprises the manmachine interface configuration.
  • diagram creation
  • report creation
  • panel creation
  • screen personalization
  • function personalization
  • logger management
  • trend and statistics management

The third and last block of the system,  is comprised by the applications that personalize and are specific to the system involved, they could be:

  • distribution
  • transmission
  • generation

Some examples of specific application modules are:

  • automatic generation control
  • overload drain
  • distribution network automation
  • ied setting changes
  • economic dispatch
  • load flow
  • voltage flow conrtrol
  • postmortem analysis
  • ied oscillography
  • downtime management
  • submaster module
  • maintenance modules
  • configuration and control of intelligent phone line commutter

MAN MACHINE INTERFACE
Using different software modules, an information explotation structure was created. It defines the profile of the different MMI users:

  • maintenance personnel
  • control personnel
  • substation personnel
  • communications personnel
  • operators

The block diagram looks like this:
These different operation modes, gather all required functions for the optimum exploitation of the system’s information. Starting with the basic SCADA and protection functions up to IED settings changes and oscillography downloads done from any terminal.

Every module has a security level access and will require a password to enter.

OPERATOR GUIDE (GAS)

  • substation diagrams
  • alarm reports
  • indication tables
  • metering tables
  • fault reports
  • commandss
  • operation draft management

OPERATION RESULTS ANALYSIS (OAS).

  • event logger
  • event sequence
  • calculated variables
  • limit violation
  • historic trends
  • operation logbooks
  • hourly metering
  • affected loads
  • downtime
  • operation statistics
  • load balances
  • loss analysis
  • service quality analysis
  • armonic percentage
  • energy balance

FAULT ANALYSIS (FAS)

  • station’s diagrams
  • protection diagrams
  • fault locator
  • fault statistics
  • oscillography
  • postmortem analysis
  • relay diagnostics
  • logic sequence editor
  • logic sequence enable
  • economic results analysis

MAINTENANCE MANAGEMENT (MAS )

  • operation statistics
  • real time status i2t
  • remaining life calculation
  • equipment data (data base)
  • maintenence logbook
  • preventive maintenance planning
  • draft followup
  • annual maintenence programs
  • work orders
  • maintenance procedures log
  • maintenance cost evaluation

EXPANSION AND MANAGEMENT (EAS )

  1. System synopsis
  2. Data base configuration
  3. Communication settings
  4. Communication statistics
  5. Setting logger
  6. Diagnostics tools
  7. Auto diagnosis reports
  8. Report editor
  9. Time synchronizing tools
  10. Submaster function configuration
  11. Superior level configuration
  12. LAN knot installation
  13. WAN connection configuration

Grouping functions according to the different user’s needs, makes it possible to gather and display the information that each user specificly needs.

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