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Industrial Automation - Government - 3/28/2013 -

GTH Designs and Implements Wireless SCADA for Local Town
George T. Hall Company (GTH) was awarded a SCADA project for the rural city of Battle Mountain, NV in 2012. The scope of work included provision of design documentation and implementation of wireless RTU equipment with instrumentation, SCADA master interface and all programming startup and commissioning.

The Challenge
The system as engineered included a 7 mile stretch between the master SCADA system and the furthest well site. Each site included a local operator interface panel. Utilizing Ethernet 900MHz radios it was imperative that we effectively manage network traffic and still maintain a responsive and reliable system.

The Solution

The water system included two separate well sites with 250 HP pumps each running off VFD control. Each pump was controlled based on draw down of the well to maintain sufficient well levels while filling tanks and pressurizing water system. The pumps were backed up with a generator for utility power fail situations. The RTUís provided gathered data from the generator via Modbus for SCADA monitoring. Two storage tanks are monitored via a solar powered RTU that relays tank level and intrusion status for pump control and monitoring. All of the data from these three sites is sent utilizing 900 Mhz Ethernet radios from Phoenix Contact to a master RTU located at the operations building of Battle Mountain. Wonderware Archestra is utilized for SCADA with tools for alarm monitoring, report generation and historical archiving.

GTH provided the following documentation & equipment:
  • Submittals
  • Drawing package with loop diagrams
  • Modicon M340 Based RTUís with Ethernet Radios
  • Well level instrumentation
  • Flow and pressure instrumentation
  • Solar powered RTU equipment
  • SCADA software and PC
  • Automated backup and report generation

The GTH Project Manager worked extensively with the contractor, engineer and end user to develop the SCADA system ensuring successful implementation in the shortest time possible.



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