Projects listed below are projects that SCADA Network Services is currently involved with or principals of SCADA Network Services were involved in the completion of the projects. Notation is made In the case that these are ongoing projects.
Design, Assembly, Programming and Integration of Remote Telemetry
SCADA Network Services designed, assembled, programmed and integrated Remote Telemetry in the States of Massachusetts, New Hampshire and Maine. Overall, more than thirty (30) sites were added to the SCADA System of Unitil Corporation.
The majority of the sites consisted of:
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Remote Automation Solutions ControlWave Micro or Express PLC's
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Sierra Wireless Raven X Cellular Modems
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Solar, Thermal Electric or AC to DC Power Supplies with battery backup at each site
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Rosemount Pressure and Temperature Transmitters for Inlet and/or Outlet Pressures and Temperatures
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Differential Pressure Switches to indicate issues with either Filters or Meters
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The above equipment was installed within NEMA4 Enclosures
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Programming, Commissioning and Integration services were also included within the scope of the project.
The thirty sites to date have been completed over a three year period, providing valuable operational data to both the Gas Control Center for monitoring and control of the system as well as to the Gas Engineering Department as part of System Wide Node analysis.
Integration of New SCADA System with Original SCADA System to include New Assets with Existing during Merger of Three Gas Utilities
Creation of New SCADA for two acquired Utilities
SCADA Network Services was given "screen shots" and remote field RTU Code from an exisitng SCADA System and was required to provide a fully functional SCADA System to allow for Monitoring, Controlling and Archiving Data for two newly acquired Natural Gas Utilities for Unitil Corporation in New Hampshire and Maine.
The overall project required the installation of redundant SCADA Servers with automatic failover capabilities, a Historical Database for Data Archiving, Communications to an internal SCADA Network as well as to each of the Production, Metering and Regulating Facilities in both New Hampshire and Maine.
SCADA Network Services provided:
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Dual Servers running Marathon Everrun FT Software to creat a "Virtual Server" allowing the resources from both servers to be used tocreat an automated failover should one of the servers fail. The servers are setup to run Microsoft Server 2003 Operating System.
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The field devices are all Remote Automation Solutions RTU/PLC's and as such OpenBSI Software is installed on the Servers including; Netview, Object Server, ControlWave Designer and Workbench.
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GE Proficy iFix is installed and configured in a Terminal Services environment on the Servers to allow for Remote Access to the SCADA System by others within the company with the need to access the SCADA System.
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GE Proficy Historian is installed on a separate server to provide Data Archiving for all pertinent data points within the SCADA System. This server can be accessed across the network to provide the ability to generate reports on the archived daa as necessary in day to day operations.
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Communications between the host facility and the remote field devices is accomplished using a combination of Frame Relay, VSAT, Cellular and High Speed Internet depending on the location and application.
This project was completed over a six month period during the time of the acquisistion and transition services and "went live" without issues prior to the end of the transition services.
Integration of New SCADA with existing SCADA System
In addition to the development of the new SCADA System for New Hampshire and Maine, the existing SCADA System was integrated so the Gas Control Center for all of the territories could be consolidated to a single location. This was accomplished by setting the existing SCADA Node to be a remote node on the New SCADA System. All screens required for monitoring and control of the existing system were copied and verified within the new SCADA System.
LPG/LNG Peak Shaving Plants
Automation of an LPG Peak Shaving Plant Control System
SCADA Network Services has extensive experience in the operations, control theories and communications required for the safe and efficient operation of LPG Peak Shaving Facilities.
SCADA Network Services designed, constructed and installed the Control System to allow for the automated operation of an LPG Peak Shaving facility for Unitil Corporation (d.b.a. - Fitchburg Gas & Electric Light Company) located in Lunenburg, MA.
The Project consisted of the complete replacement of an aging Control System that utilized primarily Relay Logic and Single Loop Digital Controllers as well as a Bristol DPC 3330 RTU and Local SCADA/HMI for process monitoring. The entire Peak Shaving process was manually controlled through the use of the aging Control System.
Project requirements included
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Complete replacement of the existing Relay Logic and Single Loop Digital Controllers with PLC Logic
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Integration of the Pipeline Gate Station data for flowing gas information as well as safety and security monitoring
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Integration of the LPG Plant Safety and Security Systems
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Installation and integration of an Inventory Control System for the six (6) on-site LPG Storage Tanks
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Fully automated set point control operation of the Peak Shaving Process including:
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Propane Vapor Temperature Control
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Propane Vapor Flow Control
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Process Air Flow Control
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Propane/Air - Natural Gas Mixing control to allow for the resulting mixture to be interchangeable with pipeline supplied natural gas
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Alarming and Process Shutdowns based on operational and safety related constraints
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Local and Remote HMI/SCADA and Historical Data Archiving and Reporting
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Wide Area Communications
LNG Peak Shaving Plant Control Systems
Fitchburg Gas & Electric - Westminster, MA
Principals of SCADA Network Services provided design, construction oversight, commissioning and testing support for the complete overhaul of an existing LNG Peak Shaving Plant Control System for Unitil Corporation (d.b.a. Fitchburg Gas & Electric Light Company) located in Westminster MA.
The operational controls of the facility were converted from a manual control panel scheme to an RTU/SCADA computer based control system. Most of the field devices were replaced and tied to a new Bristol DPC 3330 RTU which was then controlled via a GE Fanuc HMI System. All programming for both the RTU and the SCADA HMI were performed by SCADA Network Services principals.
The Control System included both local and remote monitoring capabilities with all operational control performed locally. Included in the Control System were several PID Loops along with alarming and Emergency Shutdown functionality. The system controls LNG Vaporization for peak shaving utilizing two vaporizers and two remote glycol heating loops. All measurement is performed locally in the RTU and data is displayed both locally on the Plant SCADA/HMI as well as at the Central Gas Control Center.
Berkshire Gas - Whately, MA
Principals of SCADA Network Services provided design, construction oversight, commissioning and testing support for the construction of a grass roots LNG Facility located in Whately MA.
The operational controls of the facility utilize a Bristol DPC 3330 RTU which then communicates to and is controlled by a PC Based GE Fanuc HMI System. All programming for both the RTU and the SCADA HMI were performed by SCADA Network Services principals.
The Control System includes both local and remote monitoring capabilities with all operational control performed locally. Included in the Control System were several PID Loops along with alarming and Emergency Shutdown functionality. The system controls LNG Vaporization for peak shaving utilizing two vaporizers and two remote glycol heating loops. All measurement is performed locally in the RTU and data is displayed both locally on the Plant SCADA/HMI as well as at the Central Gas Control Center.
Pipeline Meter Station Measurement and Control Systems
Vector Pipeline - Hartland and Ray, MI
Principals of SCADA Network Services provided design, construction oversight, commissioning and testing support in the installation of two Pipeline Metering and Control facilities in Michigan for Vector Pipelines.
Each facility consisted of a single bi-directional ultrasonic meter run with flow and pressure control capabilities. The stations were each equipped with a local HMI to allow for local operation and testing of the facilities. In addition, communications were established via satellite to a remote Gas Control Center in Edmonton, Alberta, CA to allow for remote operation of the facilities.
PNGTS Pipeline - Portsmouth, NH
Principals of SCADA Network Services provided design, construction oversight, commissioning and testing support in the installation of eight (8) Metering and Regulation Stations and thirteen (13) Mainline Valve Sites as well as the Control Room SCADA Systems for the PNGTS Pipeline running from the Canadian/US border near Pittsburg, NH through Portland, ME.
Each Metering facility consisted of a single turbine meter run with flow and pressure control capabilities. Each Main Line Valve facility consisted of a remotely operated main line valve along with upstream and downstream pressures. Communications were established via satellite to a remote Gas Control Center in Calgary, Alberta, CA to allow for remote operation of the facilities.
Satellite Communications
Enbridge (US) Oil Pipeline - Stillwater, OK
Principals of SCADA Network Services provided design, construction oversight, commissioning and testing support in the installation of satellite communications at twenty four (24) Pumping Stations along a Crude Oil Pipeline between West Tulsa, OK and Joliet, IL.
Each installation consisted of a satellite communications equipment and networking interfaces to a locally installed PLC. The stations were each equipped with a local HMI to allow for local operation and testing of the facilities. In addition, communications were established via the satellite system to a remote Control Center in Edmonton, Alberta, CA to allow for remote operation of the facilities.