Distribution Management

Owner: Department of the U.S. Navy

Location: Pearl Harbor, HI

System Description: The United States Navy’s shipyard at Pearl Harbor, Hawaii, is one of the most recognized names and facilities in the world. Located on the state capital island of Oahu, Pearl Harbor is one of the largest and most active navy bases in the Pacific. Ships of various sizes, function and electrical need are constantly moving in and out of the facilities, needing external power connection to remain operational during port stays and refitting. Electric loads are constantly changing, requiring up to the minute status and availability information to facilities operations personnel.

Transdyn, acting as a prime contractor, was awarded a contract to upgrade, modernize, and replace the Navy’s existing Power Distribution/Substation monitoring and control SCADA system. Transdyn’s DYNAC® System allows operations personnel to look into each of the major subsections, analyze, modify or control switchgear to numerous docks and facilities within its sphere of influence.

Owner: Massachusetts Highway Department & Massachusetts Turnpike Authority

Location: Boston, MA

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System Description: Boston's Central Artery/Tunnel, owned by the Massachusetts Highway Department, is the largest and most complex highway project ever undertaken in an American city. The project is transforming downtown Boston as the aging and overly congested elevated expressway is replaced with a new underground interstate system and a third harbor tunnel. Opened in 1995, the new Ted Williams tunnel extends the Massachusetts Turnpike under Boston Harbor to provide improved access to Logan International Airport.

Transdyn is providing the electrical distribution system for over 150 lane-miles of highway and 20 major operations, emergency response, ventilation, and electrical distribution facilities. The system is managed by Transdyn’s DYNAC® Advanced Traffic and Facilities Management software that runs on redundant servers and distributed operator workstations. Vehicle detection, video surveillance, ventilation, electronic sign, motorist advisory, communication, fire detection, security, lighting, electrical, and environmental systems are combined into an integrated control system that can be managed from a single operator workstation.

Owner: Classified

Location: Classified

System Description: The SCADA system for a large U.S. Military complex is designed to monitor and control critical electrical power distribution substations. The primary objectives are to reduce operations and maintenance costs, improve power reliability and quality, and to monitor and control two power generation plants located on the campus. The system is designed to optimize the shedding of non-critical loads in the event of any main power feed failure.

The scope of work includes providing detailed design, applications engineering, systems integration, testing, training and installation. The system is managed by Transdyn’s DYNAC® control software and is configured for power monitoring and control applications.

The SCADA system consists of dual redundant servers communicating via a redundant fiber optic counter-rotating ring topology data highway to redundant RTUs located at substations throughout the facility. Workstations are located at the main control center and at various remote locations. A GPS-generated IRIG-B timing signal is provided to synchronize the RTU clocks for sequence of event recording purposes. Intelligent power monitors are installed and used for the metering of individual switchgear circuit breakers, which communicate information to the local RTUs and back to the main control center for power quality analysis.